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Ahmad, Mukhtar
- Relative Preference to Host Plants by a Polyphagous Insect, Spilarctia obliqua Walk. (Lepidoptera : Arctiidae)
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Indian Forester, Vol 135, No 5 (2009), Pagination: 663-670Abstract
Spilarctia obliqua, commonly known as 'Bihar hairy caterpillar', is a polyphagous pest of great economic value. Its sporadic presence has been recorded on variety of food plants of agriculture and forestry importance. Relative feeding preference of S. obliqua has been studied by providing measured leaves of its five main host plants including Brassica compestris, Paulownia fortunei, Populus deltoides, Tectona grandis and Toona ciliata to different larval instars. A single larva of S. obliqua during its total larval period has consumed 377.32 mg foliage of P. fortunei which is the maximum among the five host plants tested. It was followed by B. compestris (150.19 mg), P. deltoides (72.60 mg), T. grandis (60.00 mg) and T. ciliata (43.81 mg). Taking consumption of average leaf area as the criteria, maximum leaf area of 991.14 mm2 of P. fortunei was found consumed while that of T. ciliata was minimum (138.15mm2). Larva consumed 442.86 mm2 leaf area of B. compestris and 195.90mm2 and 176.71mm2 of P. deltoides and T. grandis respectively.Keywords
Polyphagous Insect, Spilarctia obliqua Walk., Host Plants, Relative Preference
- Tulsi (Ocimum sanctum) : a New Host of Orgyia postica Walker (Lepidoptera : Lymantriidae)
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Indian Forester, Vol 135, No 11 (2009), Pagination: 1598-1599Abstract
No abstract- Infestation Level and Population Trends of Geometrids on Paulownia fortunei
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Indian Forester, Vol 129, No 11 (2003), Pagination: 1399-1404Abstract
Larvae of three geometrid species including Hyposidera talaca, Ectropis bhurmitra and Pingasa chlora were recorded for the first time as defoliators of Paulownia fortunei in India. These were found causing multiple defoliation to the plants. Hyposidera talaca was found to be a major defoliating pest of P. fortunei causing high level infestation while E. bhurmitra and P. chlora were recroded as minor pests.- Defoliation Capability of Poplar Defoliator, Clostera cupreata Butler (Lepidoptera: Notodontidae)
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Indian Forester, Vol 128, No 12 (2002), Pagination: 1360-1366Abstract
Defoliating capability of poplar defoliator, Clostera cupreata was studied by exposing measured leaf to different larval instars. Females were found to defoliate more as 0.99, 8.82, 12.65,22.13, and 103.88 cm2 ofleafwas consumed by a larva from first to fifth ins tar respectively, whereas a male larva was able to feed 0.96, 5.99, 7.67, 19.30 and 48.63 cm2 of poplar foliage from first to fifth instar respectively. Relationship between food consumption and growth rate of larva was established using various parameters including growth rate, relative growth rate, consumption rate, consumption index, and efficiency of conversion of ingested food.- Egg Parasitoid, Trichogramma and its Host Range in India
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Indian Forester, Vol 128, No 4 (2002), Pagination: 412-420Abstract
Trichogramma species so far recorded from India include T. acheae, T. agriae, T. australicum, T. brevifringiata, T. chilonis, T. chilotraeae, T. embryophagum, T. flandersi, T. hesperidis, T. japonicum, T. minutum, T. pallidiventris, T. plasseyensis, T. poliae, T. pretiosum, T. raoi and T. semblidis. These were recorded from different States including Andhra Pradesh, Bihar, Gujarat, Himachal Pradesh, Jammu and Kashmir, Karnataka, Orissa, Punjab, West Bengal, Uttar Pradesh and Uttaranchal parasitising upon variety of insect pests of forestry, agriculture, and vegetable crops.- Seasonal Variation in Adult Longevity of Aleoides percurrens Lyle (Hymenoptera: Braconidae), a Larval Parasitoid of Poplar Defoliator Clostera cupreata Butler
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Indian Forester, Vol 127, No 1 (2001), Pagination: 81-85Abstract
Seasonal variation in adult longevity of Aleoides percurrens Lyle was studied with respect to ambient temperature and relative humidity from April to early December for 2 years (1991- 1992) at Forest Research Institute, Dehra Dun (78°01' N latitude 77° 59' E longitude), India. Longevity was studied in presence of food (honey-sugar solution) and in the absence of host .larvae. Parasitoid longevity peaked in September (12.8 ± 2.8 days) when mean relative humidity was 81.0 ± 2.1% (69-93%) and mean temperature was 24.2 ± 2.7°C (19.2-31.3°C). Longevity was shortest in April (3.0±1.0days) when the mean relative humidity was 54.5±5.1% (36-75%) and mean temperature was 21.3±2.3°C (10.7-32.0°C). A high significant and positive correlation (r = 0.6604) was established between relative humidity and adult longevity. The linear and square relationships established are given by the expressions [Longevity = -7.9127 + 0.22049 (RH), R2 = 0.4361, P2), R2 = 0.4607, P < 0.001, respectively]. However the correlation between ambient temperature and adult longevity was non-significant (r = 0.0174).- First Record of Coccinellid Beetles (Coleoptera: Coccinellidae) on Poplar, Populus deltoides from North India
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Indian Forester, Vol 127, No 8 (2001), Pagination: 891-896Abstract
Association of nine coccinellid beetles with Poplar (Populus deltoides) was recorded first - time from Poplar nurseries, in Tarai region of Uttaranchal and Haryana. These include eight predacious species viz. Anegleis cardoni (Weise), Coccinella septempunctata Linnaeus, Hippodamia variegata (Goeze), Illeis cincta (Fabricius), Menochilus sexmaculatus (Fabricius), Micraspis discolor (Fabricius), Propylea japonica (Thunberg) and Rodolia fumida Mulsant found feeding on aphids and other small insect preys infesting on Poplar foliage. Another coccinellis, Epilachna vigintioctopunctata (Fabricius) was found to be a phytophagous species feeding on Poplar foliage. A key for easy identification of the recorded species has been incorporated.- Insect Pest Spectrum of Poplar in India
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Indian Forester, Vol 127, No 12 (2001), Pagination: 1353-1366Abstract
Poplars in India are hosting over 132 insect species belonging to 9 important insect orders and 42 families. They include defoliators, sap suckers, leaf miners, stern and ischolar_main borers, shoot borers etc. Many of them are polyphagous and visit poplar occasionally while few are potential pests. They exert damaging pressure to the Poplars in nursery as well as in plantation and required to be controlled with different management practices.- Record of Lymantriid Species Defoliating Paulownia fortunei in India
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Indian Forester, Vol 126, No 12 (2000), Pagination: 1319-1325Abstract
Larvae of six lepidopteran species belonging to family Lymantriidae including Orgyia postica, Callitearagrotei, Euproctis virguncula, Euproctis fraterna, Euptoctis sp. and Dasychira sp. were recorded for the first time as the pests of Paulownia fortunei in India causing multiple defoliation to the plants. Systematic regular survey and samplings were conducted in Paulownia nursery and plantation as per randomised systematic design to understand the nature of damage, pest status and population fluctuation of different lymantriid species. Orgyia postica was found to cause high level infestation rendering it to be a major defoliating pest of P. fortunei while remaining species caused low to moderate injury to the foliage. Population size of lymantriid species showed positive correlation with temperature and humidity conditions.- Antifeedant Potency of some Plants Produce against Defoliating Pest of Poplar, Clostera cupreata
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Indian Forester, Vol 123, No 9 (1997), Pagination: 821-826Abstract
Natural forest products have long been known to possess insecticidal, insect growth regulating and antifeedant properties. Doring present studies extractives of some forest produce including acetone and alcohol extracts of bark and ischolar_mains of Dalbergia stipulacea, leaves of Eucalyptus hybrid and Adina conlifolia, ursolic acid and bryonolic acid were evaluated as insect antifeedant against poplar defoliator Clostera eupreata (Lepidoptera : Notodontidae). Ursolic acid (separated from Euealyptru hybridleaves extract) has shown maximum antifeedant activity and gave over 92 per cent protection of poplar leaves from its pest. It was followed by alcohol and acetone extracts of Eucalyptru hybrid leaves, bryonolic acid, acetone extract of D. stipulacea bark, alcohol extract of A. cordifolia leaves etc. Solvents play important role in extracting active ingredient of specific nature as acetone extracts of D.stipulacea were found more effective than their alcohol extracts while solvents (acetone and alcohol) did not sbow any antifeedant activity on their own.- Lantana Weed (Lantana camara Var. Aculeata Linn) and its Possible Management through Natural Insect Pests in India
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Indian Forester, Vol 118, No 7 (1992), Pagination: 466-488Abstract
The paper provides a comprehensive review of the Lantana problem in India and its possible management through promising biological control agents and some other viable options. The weed is reported to support well over 400 indigenous insect species, but except for a few species, all are only casual visitors. To augment the indigenous enemy complex as many as seven exotic species have been introduced and tried for possible successful control agent. Efficacy of these insects has been discussed in the light of their field successes and failures. It is concluded that application of weedicides and mechanical control alone have not given reasonable success due to larger areas and cost of weedicides and labour involved. Though, biologilcal control has been considered as the most promising proposition, however only an integrated approach through silviculture-cum-biological control, chemical control, mechanical control, people participation and above all development of any technology for its economic utilization, can help in the eradication of this noxious weed.- Biology and Host Specificity of Pareuchaetes pseudoinsulata Rego Barros (Lepidoptera : Arctidae)
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Indian Forester, Vol 117, No 3 (1991), Pagination: 193-199Abstract
Pareuchaetes pseudolnsufata Rego Barros, a native to Trinidad and Central and South America, was introduced in India for the suppression of Chromolaena odorata weed. Biological studies of P. pseudoinsualta showed 2.12 ± 0.61, 6.36 ± 2.16, end 1.62 ± 0.84 days as pre-oviposition, oviposition and past-oviposition periods. Eggs, larvel end pupal periods were observed as 6.4 ± 1.52; 29.6 ± 3.69; end 8.5 ± 3.24 days. Maximum daily consumption (7.28 cm2 leaf erea) was observed in the fourth stage lerval Instar while 145.63 cm2 of leaf area was consumed by a single lerva during its entire larval period. Larvae of P. pseudoinsulata were found host spacific and did not feed even on the leaves of an allied species Eupatorium tripinerve, thus can be employed as a promising bio-control agent to suppress this noxious weed.- A Handy Guide on Insect Pests of Tamarind and their Control
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Indian Forester, Vol 115, No 9 (1989), Pagination: 673-679Abstract
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.- Feeding Diversity of Myllocerus viridanus Fab. (Coleoptera: Curculionidae) from South India
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Indian Forester, Vol 115, No 11 (1989), Pagination: 832-838Abstract
Myllocerus viridanus Fab. (Coleoptera: Curculionidae) is a common defoliator of teak (Tectona grandis) in the forests of Southern India. It is a potential pest with distinct polyphagous nature. It has been recorded causing considerable defoliation to many plant species of forestry importance wbich include herbs (Cassia tara and Solanum violacium), shrubs (Calliandra calothyrsus, Cassia hirsuta, Helicteres isora L.) and trees like Acacia auriculiformis, Cassia fistula, Eugenia jambolana, Eucalyptus robusta, Pongamia pinnata, Populus deltoides, Sapindus tripliatus and Eupatorium odoratum weed.- Relative Resistance of Different Clones of Tectona grandis to Teak Defoliator, Hyblaea puera Cram (Lepidoptera : Hyblaeidae) in South India
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Indian Forester, Vol 113, No 4 (1987), Pagination: 281-286Abstract
20 clones of teak, Tectona grandis belong to Kerala, Tamil Nadu and Andhra Pradesh were evaluated for their natural variation in susceptibility to teak defoliator, Hybiaea puera Cram (Lepidoptera: Hyblaeldae). Growth increment of the clones was also observed for a period of 17 months. TNT 6 was found to be the most resistant clone as the leaf area consumed by the larvae of H. Puera was 1.51 cm2. Whereas KLS 3 was the most susceptible (leaf area fed 17.78 cm2). Performance of clone KLK 2 was the best in respect of growth increment as it attained the maximum increment of 104.57 cdm, among the 20 clones observed. Intraspecific crosses are advised between clone TNT 6 aDd KLK 2 for further improvement of the c1one's quality.- Biology and Behaviour of a Parasitoid, Parasierola Sp. (Hymenoptera : Bethylidae on Trachylepidia fructicassiella Ragnot. A Seed Borer of Cassia roxburghii
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Indian Forester, Vol 112, No 4 (1986), Pagination: 357-365Abstract
Parasierola sp.is the bethylid paralnold on the larvae of Trachylepidia fructicassiella. Mating of the two sexes Observed Z to 3 times a day. Maximum number of emergences of adults were observed from the eggs deposited during first week and raduced considerably from the eggs laid during successive days. Total developmental period varied from 5.86 ± 7.44 to 14.8 ± 1.13 days. Pupal period was larger than the period required for Incubation + larval development. The developmental period of the offsprings from first to sixth sucessive avipositions varied significantly and found shortened for the offsprings from the older females. Females live longer than the males. The age of the females was also found to be related with the production of sexes as the percentage of females was higher at the older age. Parasierola sp. Was found to be prevalent only during July to September with the abundance of the host larvae.- Biology of Hestiasula brunneriana Saussure (Dictyoptera: Mantidae)
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Indian Forester, Vol 111, No 5 (1985), Pagination: 333-338Abstract
Hestiasula brunneriana Sausure (Dictyoptera : Mantidae) is a sylvan species of mantid which prey on immature stages and adults of teak defoliators and several other forest pests. Biology and behaviour of the species were studied under laboratory conditions. Fecundity of the female and the longevity of males and females were also studied.- Effect of Different Host Plants on the Development of Spilarctia obliqua Walk. (Lepidoptera: Arctiidae)
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