Singh, Pratap

• Pinus gerardiana (Chilgoza) Cone Borers of Kinnaur District in Himachal Pradesh

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Authors

Pratap Singh , Arun Pratap Singh

Source

Indian Forester, Vol 121, No 8 (1995), Pagination: 728-734

Abstract

The life history of Dioryctria abietella and its extent of damage to Chilgoza pine (Pinus gerardiana) in Kinnaur Forest Division, Himachal Pradesh, is reported in this paper.

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• Bioassay of Thuricide-a Microbial Insecticide against Important Forest Pests-ii

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Authors

Ram Mohan Misra , Pratap Singh

Source

Indian Forester, Vol 119, No 1 (1993), Pagination: 33-35

Abstract

A microbial insecticide thuricide Potency 30 × 10 spores per gram) with Bacillus thuringiensis as active ingredient was bioassayed against twelve species of forest Lepidoptera belonging to six families.

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• Bionomics and Control of Salai Defoliator Rhesala (Paparna) Imparata Walker (Lepidoptera : Noctuidae)

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Authors

Ram Mohan Misra , Pratap Singh

Source

Indian Forester, Vol 119, No 7 (1993), Pagination: 564-567

Abstract

Salai defoliator Rhesala imparata Walker is a new pest record on Boswellia serrata. The moth appeared in January and oviposited in clusters. Incubation period was 3-5 days, larval period ranged 15-28 days, pupal period 5-10 days in August and 11-22 days in October-November. Life cycle was completed in 23-55 days. A nuclear polyhedrosis virus was recorded from the larva of R. imparata at Barnawapara. A parasite wasp was also recorded from larvae of R. imparata.

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• Tent Caterpillar Epidemic in Betula Utilis Forest in Pithoragarh District of Uttar Pradesh and its Control

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Authors

R. S. Bhandari , Pratap Singh

Source

Indian Forester, Vol 117, No 4 (1991), Pagination: 267-273

Abstract

Epidemic defoliation of Betula utilis D. Don (Bhojpatra) was reported for the first time in Pithoragarh in 1984-85. A study was undertaken in May, 1986 to diagnose the epidemic and toggest control measures which is described in detail.

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• External Morphology, Bionomics and Natural Enemy Compux of Pagyda salvalis Walker (Lepidoptera: Pyralidae) the Inflorescence Feeder and Fruit Borer of Teak

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Authors

Pratap Singh , Ram Mohan Misra

Source

Indian Forester, Vol 116, No 9 (1990), Pagination: 742-747

Abstract

Pagyda salvalis Walker is an important pest of teak causing severe damage to teak inflorescence and fruits. Heavy attack results in poor fruit setting. External morpbology of moth, pupa, larva and egg are described. Only threr generations were observed from June to October The larva fed on inflorescence and fruits of teak. Besides it was recorded feeding on leaves of Callicarpa lanata, Nothing is known about the pest when teak is not in inflorescence and fruit. Studies need be carried out to fill this lacuna in the bionomics of the pest.

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• Arrival of Leucaena Psyllio in North India

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Authors

Ram Mohan Misra , Pratap Singh

Source

Indian Forester, Vol 116, No 10 (1990), Pagination: 842-842

Abstract

No abstract

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• Insect Borers Killing Fire-scorched Chir Pine Trees and Their Control in Nahan Forest Division, Himachal Pradesh

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Authors

R. S. Thapa , Pratap Singh

Source

Indian Forester, Vol 116, No 5 (1990), Pagination: 375-380

Abstract

In Jamta Range in Nahan Forest Division, Himachal Pradesh a wide-spread fire broke nut in April-May, 1984 and number of chir pine trees slowly started dying one after the other even after 10 months of outbreak of fire. These trees Were being trapped for resin for many years by lip-and-cup method making deep and wide blazes leaving only narrow bark strips between two adjacent blazes. The study showed that the scorched bark-strips around the blazed area attracted two flat-headed borers, one the bark borer, Melanophilo ignicola and another the sap wood borer, Sphenoptera aterrima which badly damaged the bark and formed a girdle around the tree trunks resulting in slow death or trees Treatment with 1% lindane water emulsion around the tapped area was found very effective in protecting the trees from borers' attack and there by preventing their mortality.

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• Niote on the Occurrence of Genus Arceuthobium M. Bies. in Eastern Himalaya

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Authors

H. B. Naithani , Pratap Singh

Source

Indian Forester, Vol 115, No 3 (1989), Pagination: 196-196

Abstract

No abstract

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• Further Spread of Leucaena Psyllid, Heteropsylla cubana in India

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Authors

Pratap Singh , R. S. Bhandari

Source

Indian Forester, Vol 115, No 5 (1989), Pagination: 303-309

Abstract

The introduction of Leucaena psyllid Heteropsylla cubana was detected at Kattupakkam, Tamil Nadu in February, 1988. A Survey of the pest since February, 1988 showed that the pest has spread to Tamil Nadu, Karnataka, Andhra Pradesh, Maharashtra and Madhya Pradesh. It was doing considerable damage to Leucaena from wherever it was reported. The action plan evolved by various agencies lays stress on breeding psyllid resistant species/ clones of Leucaena and biological control. The predators Curinus coeruleus and Olla abdominalis which have been released in Pan-Pacific region to control the Psyllid may not be desirable in the Indian context as they may readily predate upon lac insects. Before decision to introduce any Biological control agent is taken, host specificity of the agent should be confirmed. '

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• External Morphology of the Larvae of the Khasi Pine Shoot Borer, Dioryctria castanea Bradley (Lepidoptera: Pyralidae)

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Authors

Pratap Singh , K. C. Joshi , D. Gurung

Source

Indian Forester, Vol 115, No 6 (1989), Pagination: 414-420

Abstract

In this paper larvae of Khasi pine shoot borer Dioryctria castanea Bradley (Lepidoptera: Pyralidae) has been described. The freshly hatched larva is cylindrical, ljght yellow in colour which changes to light brown and finally to dark brown in the fifth instar. The full grown larva is 17.42 × 2.0 mm. Head is brown, hypognathus with six pair of ocolli. Of the anterior setae A₁, A₂ and A₃, A₁ lies closer to the base of the antenna of the side whereas A₂ is posterior to it. Cervical shield and anal plate are brown. Arrangement of crochets of the legs is uniserial and biordinal. Chaetotaxy of the larva is described in detail.

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• Epidemic of Deodar Defoliator Ectropis deodarae Prout (Lepidoptera : Geometridae) in Kamraj Forest Division (J & K) and its Control by Aerial Spraying of Fenitrothion

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Authors

Pratap Singh , R. S. Bhandari , Massrat Fasih , Ganga Prasad , B. D. S. Tyagl , B. M. Mishra , R. K. Mishra

Source

Indian Forester, Vol 115, No 7 (1989), Pagination: 459-474

Abstract

Epidemic defoliation of deodar forests by Ectropis deodarae in Lolab Valley was reported in August, 1982. The population of the pest was monitored in early spring of 1983, by counting pupae on the ground per unit area, the ascending female moth stuck up on sticky bands applied to deodar trees and also larval population per twig. As the population was found to be on the increase and an epidemic was threatened a decision was taken to spray an organophosphorous compound fenitrothion from the air. Two Beaver aircrafts were used for the operation. The dispensing equipment used was boom and nozzle and the insecticide dosage was 1 litre per hectare Pre and Post-treatment counts of the pest population gave 92% kill. Non-target organisms hit by the spray were also monitored. There was no mortality of birds and other vertebrates. A good number of non-target insects including Calosoma beesoni, the predator beetle of Ectropis deodarae were also hit. The dosage can be safely reduced to 775 ml/hectare which will effectively kill tbe pest and cause less harm to predators.

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• A Handy Guide on Insect Pests of Tamarind and their Control

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Authors

Pratap Singh , Mukhtar Ahmad

Source

Indian Forester, Vol 115, No 9 (1989), Pagination: 673-679

Abstract

Tamarindlls indica, native to the dry savannah of tropical Africa is an important tree species widely grown and cultivated throughout India. Tamarind fruits are used and relisbed as an important ingredient in 'curries' 'chutnies' and various other preparations. Insect pests involved in large scale damage to the various parts of the tree, are summarised. A number of sapsuckers, mealy bugs, scale insects, aphids suck the sap of the tender shoots and leaflets. Some species of caterpillars and beetles cause damage to the foliage, flowers, fruits and seeds. Control measures of various pests are also given.

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• Bionomics of the Ambara Defoliator Podontia 14-punctata Linn. (Coleoptera: Chrysomelidae)

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Authors

Pratap Singh , Ram Mohan Misra

Source

Indian Forester, Vol 115, No 12 (1989), Pagination: 910-915

Abstract

Podontia 14-punctata the balticine beetle is a serious defoliator of Spondias pinnata, an important fodder tree. In June/July the beetles appear and the trees are stripped of their leaves resulting in the loss of much needed fodder. Eggs were laid in clusters of 20-60. Incubation period was 7-8 days, larval period 11-18 days, pupa] period 14-29 days. Life cycle varied from 32-55 days. A nematode pal asite Mermis sp and a fungal patbogen Cephalosporium sp. have been recorded parasiting the larvae and the beetle. Foliar spray of 0.25% malathion in June/July gave effective control of the pest. As an alternative to insecticides, spores of the pathogen can be sprayed with water as carrier for controlling the pest.

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• Efficacy of some Insecticides against the Larvae of Khasi Pine Shoot Borer, Dioryctria castanea Bradley (Lepidoptera : Pyralidae)

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Authors

Pratap Singh , K. C. Joshi , D. Gurung

Source

Indian Forester, Vol 114, No 1 (1988), Pagination: 29-34

Abstract

There was an epidemic of Khasi pine shoot borer,Dioryctria castanea in 1982 in Yachuli Khasi pine plantations in Arunachal Pradesh. All age groups were attacked. Two field trials were conducted at Yachuli to find out the efficacy of phosphamidon, dimethoate,monocrotophos, methyl-demeton, formothion and thiometon against the shoot borer. Spraying of 0.03% phosphamidon/0.03% dimethoate/0.04% monocrotophos/0.03% formothion/O.03% thiometon in the last week of February was highly effective in reducing the incidence of the shoot borer.

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• Epidemic of Sal Heart-wood BorerHoplocerambyx spinicornis Newm. (Coleoptera : Cerambycidae) and its Control in Pachmari, Madhya Pradesh

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Authors

R. S. Bhandari , Pratap Singh

Source

Indian Forester, Vol 114, No 3 (1988), Pagination: 152-157

Abstract

Epidemic of Sal heart-wood borer, Hoplocerambyx spinicornis, was reported in 1979 from the hill resort of Pachmari, Madhya Pradesh. The very existance of Sal around Pachmari was threatened. Sal forest has great aesthetic value for this hill resort. So extensive trapping operations were carried out from 1979 to 1981 to control the borer, which brought down the incidence of attack from 57.23 per cent in 1979 to 0.75 per cent in 1981 and mortality from 12.28 per cent to 0.0 per cent which are below the tolerance levels.

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• Heteropsylla Cubana Crawford, a New Psyllid Pest of Leucaena in India

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Authors

Pratap Singh

Source

Indian Forester, Vol 114, No 4 (1988), Pagination: 200-205

Abstract

Leucaena psyllid, Heteropsylla cubana was detected in February, 1988 by an entomologist, of Tamil Nadu Agricultural University in Chingalpettu District. A survey undertaken soon after, recorded the psyllid from Pudukottai, Trichi and Coimbatore districts also. Leucaena cultivation is threatened. The psyllid is native of Caribbean region. In a short span of 2 years since 1984 it had spread all over the Pacific basin and crossed over to Indian Ocean basin, reaching Sri Lanka in 1986. Biological-cum-genetic control measures should be launched by releasing in India promising parasites, predators and pathogens from the native home of the pest and raising psyllid resistant varieties of L. leucocephala or species of Leucaena. An all India project for Leucaena psyllid control should be prepared with the participation of Wasteland Development Board and various other research organisations or India should participate in the Regional Plan for Psyllid Control prepared by FRED Project.

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• Defoliation Epidemic of Ascotis selenaria Imparata Walk. (Lepidoptera: Geometridae) in Sal forest of Asarori Range, West Dehra Dun Division

Abstract Views :238  |  PDF Views:0

Authors

Pratap Singh , R. S. Thapa

Source

Indian Forester, Vol 114, No 5 (1988), Pagination: 269-274

Abstract

An defoliation epidemic by Ascotis selenaria imparata (Lepidoptera : Geometridae) started in the Sal forests of Mohammadpur Block of Asarori Range, West Dehra Dun Division in early 1975. Compartments 4, 5 and 6 were affected. In compartments 4 and 5 complete defoliation of Sal trees occurred whereas in compartment 6 trees were partially defoliated. In the understorey, trees of Mallotus philippinensis and Murraya koenigii were also badly defoliated. Two generations of the defoliator were completed by June-July, 1975 and a third generation started in the month of July. However the third generation larvae got completely annihilated by the infection of a nuclear polyhedrosis virus and the epidemic came to an abrupt end. Observations on the biology and natural enemy complex of the pest and the resultant impact of defoliation epidemic on Sal trees have been made. Control measures using insecticides and pathogens have also been suggested.

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• New Records of Predators of the Meliaceae Shoot Borer Hypsipyla robusta Moore (Lepidoptera: Pyralidae)

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Authors

Pratap Singh , Ram Mohan Misra

Source

Indian Forester, Vol 114, No 7 (1988), Pagination: 399-404

Abstract

The Meliaceae shoot borer Hypsipyla robusta Moore an important pest of trees belonging to family Meliaceae. A survey for the predators of H. robusta in Doon Valley revealed five predators including one reduvid, one formicid, two carabids, one mantid, common myna and five striped squirrel were recorded for the first time. A brief account of the predators and their potentialities are given in this paper.

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• Insect Rests of Bamboos and Their Control

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Authors

Pratap Singh , R. S. Bhandari

Source

Indian Forester, Vol 114, No 10 (1988), Pagination: 670-683

Abstract

There are large number of species of insects that attack bamboos belonging to the orders Coleoptera, Lepidoptera, Orthoptera and Hemiptera. Of the defoliators, greater leaf roller Pyrausla coclesalis is the most important occurring in epidemic. In post-monsoon season. Other defoliators are P. bambucivora, Pionia flavofimbriata, Massepha absolutalis, Heiroglyphus banian and poecilocerus pictus. The defoliators can be controlled by spraying/dustlng insecticides. The bamboo weevils Cyrtotrachelus dux and Cyrtotrachelus longimanus are important shoot borers. The hispine beetle Estigmena chinensis inflicts heavy damage on Dendrocalamus strictus culms. The borers of standing bamboos are controlled by silvicultural thinnings. The orber shoot boring insects Argyroploce paragramma, Chelyophoro ceratatina, C. Striata are not important. There are many spedes of scale insects belonging to tbe genera, Chionaspis, Odonaspis and Aslerolccanium. Which attack both wild and cultivated species hut are not important. Of the sap-suckers bamboo aphid Oregma bambusae and seed bug Ochrophara occurs in epidemic form. The sap-suckers can be controlled by chemical sprays.Ghoon beetles, Dinoderus brevis, D. minutus and D. ocellaris are most destructive powder post beetles. Prophylactic .nd preservative treatments are recommended for their control. Bamboo entomology has been neglected so far except studies on ghoon beetles. Need for detailed studies on the biology, life-history, natural enemy complex and control of forest pests are emphasized.

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• Effect of Neem Seed Extractives on Poplar Defoliator Pygaera cupreata Butler (Lepidoptera: Notodontidae) in Laboratory

Abstract Views :190  |  PDF Views:0

Authors

R. S. Bhandari , Jia Lal , K. S. Ayyar , Pratap Singh

Source

Indian Forester, Vol 114, No 11 (1988), Pagination: 790-795

Abstract

Methanol extractives of neem seed and nine chromatographic fractions (F₁, - F₁₀) were tested against poplar defoliator P. cupreata for their antifeedant activity. Preliminary studies indicate antifeedant activity by Methanol extract, Fraction 2 and Fraction 10. These three active extractives were further tested following method of Nakanishi. Five replications of ten insects each were used for test. The methanol extract and fraction 2 were found significantly effective gustatory phagodeterrent when compared to fraction 10 and controls. These extractives can be used for foliage protection of Populus deltoides against P. cupreata.

Keywords

Neem Seed Extractives, Pygaera Cupreata, Antifeedant Activity.

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• Insect Pests of Leguminous Forest Tree Seed and their Control

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Authors

Pratap Singh , R. S. Bhandari

Source

Indian Forester, Vol 114, No 12 (1988), Pagination: 844-853

Abstract

Lellumlnous tree Species are important in social forestry and wasteland development programmes' hence there is a great demand for their seeds. For raising large nursery stock' huge quantities of sound seed is required. But seed entomology of the leguminous tree seeds has long been a neglected subject. These seeds are often liable to be destroyed by insects. A large number of insects belonging to orders' Coleoptera' Lepidoptera feed on pods and seeds in nature and during storage. Most important of these are bruchid beetles of the genera Caryedon. Bruchidius and Bruchus. In most of the cases insect attack commences from the tree itself. Larvae of tortricids pyralids' gelechids and heliodenlds also cause considerable damage to pods and seeds. Short account of these injurious insects feeding on lenguminous seeds and their control measures are given in this paper. The fight against bruchids which often destroy more than half of the seeds has been unsuccessful so far because it has not been based on adequate knowledge of the biologY of these beetles aud in particular of how they infest leguminous seeds at harvest time' most of them are wrongly believed to attack only stored seeds. Entomologists must remedy the situation if rurther advances are to be made in social forestry and wasteland development.

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• New Record of Beauveria tenella (Delacroix) Siemaszko on Teak Skeletonizer Eutectona machaeralis Walker (Lepidoptera : Pyralidae)

Abstract Views :213  |  PDF Views:0

Authors

Pratap Singh , Ram Mohan Misra

Source

Indian Forester, Vol 113, No 7 (1987), Pagination: 476-478

Abstract

An entomogenous fungus Beauveria tenella (Delacroix) Siemaszko was isolated from dead larvae and pupae of Eutectona machaeralis Walker collected from teak forests of Melghat, Maharashtra State. Laboratory experiments gave 80% kill of the larvae, when sprayed with spores culture of the fungus in water. This fungus is a promising pathogen for the microbial control of the teak skeletonizer.

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• Insect Pests of Acacia tortilis in India

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Authors

Pratap Singh , R. S. Bhandari

Source

Indian Forester, Vol 113, No 11 (1987), Pagination: 734-743

Abstract

Large scale plantations of Acacia tortilis are being raised in arid zones of India, owing to its suitability for stablizing and dunes and fuelwood and fodler. Very little information is available about the entomology of A. tortilis. The present study shows that, though the plantation of A. tortilis do not have serious insect problems for the present as the species is a recently introduced exotic. But many insects feeding on native acacias have adapted to A. tortilis. Most serious of them are pod and seed insects and timber borers. Among the pod and seed insect Caryedon gonogra may cause even l00% loss to seed crop. Tbe bruchid can be controlled by spraying 0.25% endosulfan/fenitrothion or 0.05/. Monocrotophos/dichlorvus water emulsion. Powder post beetles Sinoxylon anale and S. crassum attack A. tortilis timber within few weeks of its felling and convert it into dust thus rendering it useless as fuelwood. Prophylactic treatment of 1.5% lindane/endosulfan protect the timber from borer attack for nearly a year. Other insect species of minor importance and their control are also given.

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• Large-scale Mortality of Deodar Trees by the Bark Borer, Scolytus major Stebbing (scolytidae, Coleoptera), in Kulu forest Division, Himachal Pradesh

Abstract Views :177  |  PDF Views:0

Authors

R. S. Thapa , Pratap Singh

Source

Indian Forester, Vol 112, No 5 (1986), Pagination: 392-398

Abstract

Deodar forest of Kulu Forest Division have often been the scene of bark borer, Scolytus major Stebbing, outbreaks in the past. The recent outbreak occurred in August 1980 in Jari Ban forests of Parbatti Range which killed several trees. A study of borer damage was made in September 1980 on the incidence of attack and the factors responsible for pupulation build-up of the bark borer. Preventive and remedial control measures have been given. It is suggested that proper maintenance of forest sanitation and management practices in deodar forests may avert bark borer outbreak.

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• Optimum Size and Thickness of Polythene Bags for Raising Nursery of Eucalyptus Hybrid

Abstract Views :280  |  PDF Views:0

Authors

Pratap Singh , Y. Agnihotri , S. P. Mittal , P. R. Mishra

Source

Indian Forester, Vol 111, No 5 (1985), Pagination: 318-327

Abstract

For determining the optimum size and thickness of polythene bags, four sizes viz. 25 cm × 15 cm, 30 cm × 20 cm, 40 cm × 25 cm and 45 cm × 30 cm with gauges 150, 200 and 250 have been tested for raising nursery of Eucalyptus hybrid. Data on height, collar-diameter and other growth parameters like leaves per plant, length of ischolar_main and dry weight of entire plant was taken 90, 120, 150 and 180 days after sowing of seeds. The data showed consistent concomitant increase in the growth parameters with increasing size and thickness of polythene bags. On considering the cost and gross return from six year old plantation raised from the seedlings in the bags under test, optimum size and thickness of bag works out to 40 cm × 25 cm with 200 gauge followed by 45 cm × 30 cm with 150 gauge.

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• Poplar Stem Borer, Apriona cinerea Chevrolat (Coleoptera: Cerambycidae) its Biology, Ecology and Control

Abstract Views :319  |  PDF Views:0

Authors

Pratap Singh , Ganga Prasad

Source

Indian Forester, Vol 111, No 7 (1985), Pagination: 517-524

Abstract

Poplar stem borer, Apriona cinerea is a serious pest of poplars in plantations in the North-west Himalaya and the adjoining plains region. Pest distribution and its host plants are given. All age groups of poplars are attacked. Attacked trees deteriorate in quality and break under wind pressure. Various stages of the borer i.e. adult, egg, larva and pupa, its biology and life history are described. Pruning of affected branches in September-October and fumigation with paradichlorobenzene or other fumigants successfully controls borer population. General purpose persistent insecticide, lindane, can be used for killing adults. Soil applications of Furadan (granular formulation) can protect nursery plants from the borer attack. Collateral hosts of the stem borer should be removed from the vicinity of poplar plantations. Clones best adapted to the ecological conditions of a site should be selected for raising plantations.

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• Epidemic Deioliation of Poplars and its Control in Tarai Central Forest Division, Uttar Pradesh

Abstract Views :180  |  PDF Views:0

Authors

Pratap Singh , D. S. Rawat , R. M. Misra , Massrat Fasih , G. Prasad , B. D. S. Tyagi

Source

Indian Forester, Vol 109, No 9 (1983), Pagination: 675-693

Abstract

no abstract

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• Insect Pests of Exotic Pines in India

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Authors

Pratap Singh , Massrat Fasih , Ganga Prasad

Source

Indian Forester, Vol 108, No 1 (1982), Pagination: 93-107

Abstract

Exotic pines are being planted on a large scale in the country. With all exotics we face problems from indigerous and introduced pests. By and large except for pine adelgid which got inadvertently introduced into the country sometime back, the exotic pines have no insect pest problems. The other insects recorded from them are casual feeders only. Most of them belong to the order Lepidoptera with lesser numbers in Coleoptera, Hemiptera, Orthoptera, Hymenoptera and Isoptera. Majority of them are defoliators. All of them are potential pests. To check further spread of the pine adelgid no vegetative material should be transported from one region to another. With the passage of time indigenous insects will adapt themselves to their new hosts or insects from their native homes are likely to gain entry in their new homes. Therefore, continued surveillance is necessary for detection of new pest introductions and pest build-up. Relatively insect free conditions of pines today should not lull foresters to compiacency so that they neglect plans for alternate species or for control measures when pest build-up takes place.

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• Control of Semul Shoot Borer Tonica niviferana (Lepidoptera: Oecophoridae) in Plantations

Abstract Views :183  |  PDF Views:0

Authors

Pratap Singh , Ram Mohan Misra , Ganga Prasad

Source

Indian Forester, Vol 107, No 4 (1981), Pagination: 249-251

Abstract

Semul shoot borer is a serious pest of semul plantations. An effort was made to control the pest by using two granular insecticides viz furadan and sevidol. Post treatment evaluation after 48 hours showed that sevidol at 6g/plant (81.25% kill) was found more effective than furadan 6g/plant (52.98% kill) and 8g/plant (59.70% kill).

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• External Morphology and Distinguishing Characters of Male and Female Pupae of Ailanthus Webworm, Atteva fabriciella Swed. (Lepidoptfra : Yponomeutidae

Abstract Views :200  |  PDF Views:0

Authors

Pratap Singh , Krishan Kanta Sharma

Source

Indian Forester, Vol 105, No 1 (1979), Pagination: 36-40

Abstract

External morphology of pupae of A.fabriciella and tHe distinguishing characters of male and female are given. A comparison of pupae of A.fabriciella and A. aurea is also made.

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• Two New Pests of Khasi Pine, Pinus kesiya Royle Ex Gordon

Abstract Views :274  |  PDF Views:0

Authors

Pratap Singh , Raghubir Singh

Source

Indian Forester, Vol 104, No 3 (1978), Pagination: 182-188

Abstract

The defoliation epidemics in the khasi pine forests of Jaintia Hills and Khasi Hill, Meghalaya were studied. The insects responsible for the epidemics were Eterusia pulchella and Dichocrocis puncliferalis. Both the insects are polyphagous and reported for the first time as defoliators of khasi pine E. pulchella is distrihuted all along the Himalayas while D. puncliferalis is widely distributed all over south east Asia including India. Egg, larva, pupa and adult of the species are described and notes on their biology given. Both these insects are potential threat to Pinus kesiya in the region.

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• Laboratory Evaluation of Insecticides as Contact Sprays against forest Pests. II-ailanthus webworm: Atteva fabriciella Swed. (Lepidoptera: Yponomeutidae

Abstract Views :238  |  PDF Views:0

Authors

Pratap Singh , B. K. Gupta

Source

Indian Forester, Vol 104, No 10 (1978), Pagination: 696-702

Abstract

Twenty insectides were tested as contact poisons againat the 3rd instar larvae of Atteva Jabriciella the Ailanthus webworm. Out of this two insecticides viz., Anthio and Chlordimeform proved most effective in comparision to D.D.T, while Quinalphos and Monocrotophos also proved 36.0974 and 22.9218 times more effective than D.D.T., Pyrethurum, Carbaryl and Fenitrothion also proved 13.7231, 13.2100, 10.0963 times more effective when compared with D.D.T. Rest of the Insecticides can be put according to their effectiveness in descending order as Leptophos, Dichlorvos, Cythion, Ambithion, Endosulfan, Endrin, Gama B.H.C., D.D.V.P., dimethoate, Malathion, Aldrin, Dieldrin & D.D.T.

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• Bioassay of Thuricide, a Microbial Insecticide, against Important forest Pests

Abstract Views :165  |  PDF Views:0

Authors

Pratap Singh , Ram Mohan Misra

Source

Indian Forester, Vol 104, No 12 (1978), Pagination: 838-842

Abstract

×A microbial insecticide thuricide (Potency 30 × 10⁹ spores per gram) with Bacillus thuringiensis as active ingredient was bioassayed against twenty six species of forest Lepidoptera belonging to 11 families.

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• New Host Records for the Bamboo Sap-Sucker, Oregma bambusae Buckton (Hemiptera: Aphidae)

Abstract Views :203  |  PDF Views:0

Authors

Pratap Singh , R. V. Sivaramakrishnan

Source

Indian Forester, Vol 102, No 3 (1976), Pagination: 185-185

Abstract

no abstract

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• An Endo-and Ecto-parasite on Orthacris simulans Bolv. (Fam: Acrididae) Infesting Rauwolfia serpentina Benth.

Abstract Views :181  |  PDF Views:0

Authors

Pratap Singh , J. C. Basu Choudhury

Source

Indian Forester, Vol 90, No 4 (1964), Pagination: 215-216

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• Studies on the Pests of Rauwolfia serpentina Benth ex Kurz. - I

Abstract Views :162  |  PDF Views:0

Authors

Pratap Singh

Source

Indian Forester, Vol 90, No 12 (1964), Pagination: 839-842

Abstract

No abstract

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• Mermithid Parasites and their Role in Natural Control of Insect Pests

Abstract Views :175  |  PDF Views:0

Authors

P. N. Chatierjee , Pratap Singh

Source

Indian Forester, Vol 91, No 10 (1965), Pagination: 714-721

Abstract

No abstract

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• Further Records of Insect Hosts of Mermis Sp. (Mermithidae : Mermithoidea : Nematoda

Abstract Views :171  |  PDF Views:0

Authors

P. N. Chatterjee , Pratap Singh , V. R. Shivaramakrishnan

Source

Indian Forester, Vol 94, No 3 (1968), Pagination: 251-252

Abstract

no abstract

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• Efficacy of Various Insecticides Including Indigenous Vegetable Products. II. Preliminary Note on Testing the Flea Repellent Properties of an Essential Oil from Boenninghausenia albiflora (Hook.) Reichb

Abstract Views :196  |  PDF Views:0

Authors

P. N. Chatterjee , Pratap Singh , V. R. Sivaramakrishnan

Source

Indian Forester, Vol 94, No 4 (1968), Pagination: 324-325

Abstract

no abstract

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• Celosterna scabrator Fabricius (Lamiidae : Coleoptera), A New Pest of Eucalyptus and its Control

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Authors

P. N. Chatterjee , Pratap Singh

Source

Indian Forester, Vol 94, No 11 (1968), Pagination: 826-830

Abstract

A new pest of Eucalyptus, Celosterna scabrator F. (stem and ischolar_main borer) is recorded in this paper. Its distribution, collateral hosts, morphology, ecology and control measures are given.

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• Insect Pests of Fast Growing Tree Species-II. Effect of Various Fumigants on Poplar Stem Borer, Apriona cinerea Chevrolet (Lamudae) in New Forest Plantations

Abstract Views :196  |  PDF Views:0

Authors

P. N. Chatterjee , Pratap Singh , Ganga Prasad

Source

Indian Forester, Vol 95, No 5 (1969), Pagination: 369-371

Abstract

no abstract

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• Studies on the Biology, Ecology, Life History, and Parasite Complex of Ailanthus Defoliator Eligma narcissus Cramer (Noctuidae : Lepidoptera), together with Morphology of Adult and Immature Stages

Abstract Views :190  |  PDF Views:0

Authors

P. N. Chatterjee , Pratap Singh , R. M. Misra

Source

Indian Forester, Vol 95, No 8 (1969), Pagination: 541-550

Abstract

Raising of Ailanthus in plantations has brought entemological problems in its wake, i.e., epidemics of Eligma narcissus Cramer and Atteva fabriciella Swederus. Distribution of Eligma narcissus follows distribution of genus Ailanthus. Moth large, grey, black and yellow; egg pale white, larva bright sulphur yellow with black and red patches, pupa dark brown. Moth oviposits in clusters, incubation period 3-4 days, larval period 22-23 days and pupal period 15-17 days. There are 8-9 generations a year. Sex ratio is 50:50. Enemy complex, compries of two tachinid parasites, Eutachina civiloides Baranov and Sturmia inconspicuella Baranov; a fungal pathogen, Beauveria bassiana (Balsamo) Vuillemin; a mantid predator Humbortilla ceylonica Saussere; and a bird predator the black headed oriole-Oriolus xantheornus. Integrated measures, i.e., Biological-cam-silvicultural and mechanical, advised for the control of the pest in plantations.

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• Biological Control of Semul Shoot Borer Tonica niviferana Walker (Oecophoridae)-I. Biology of Xanthopimpla brevicauda Cus Man (Ichneumoaidne), A Pupal Parasite of Tonica niviferana Walker

Abstract Views :200  |  PDF Views:0

Authors

P. N. Chatterjee , Pratap Singh

Source

Indian Forester, Vol 95, No 12 (1969), Pagination: 869-872

Abstract

no abstract

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• Role of Interspecific Aggression in Distribution of Leaf Warblers in the Himalayan Region

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Authors

Pratap Singh ¹, G. S. Rawat ¹

Affiliations
1 Wildlife Institute of India, Chandrabani, Dehradun-248001, IN

Source

Indian Forester, Vol 140, No 10 (2014), Pagination: 954-959

Abstract

Bird species are distributed along elevational gradients in mountain regions with narrow altitudinal ranges. Physical and biological environment, competitive exclusion and ecotones have been suggested as spacing mechanisms of species along elevational gradients. Interspecific aggression among closely related altitudinal replacements has been found to be one of the most important mechanisms in spacing of species in tropical mountains. In the present study interspecific aggression among closely related warbler species was tested using heterospecific song playbacks. Out of four species pairs tested interspecific aggression was detected in one pair, and it is possible that other factors related to physical and biological environment and ecotones may be more important in spacing Himalayan birds.

Keywords

Interspecific Aggression, Leaf Warblers, Himalayan Region.

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