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Verma, T. D.
- Insect-pests Associated with Robinia pseudoacacia in the Agroforestry System in Mid-hill Regions of Himachal Pradesh
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Indian Forester, Vol 134, No 1 (2008), Pagination: 120-124Abstract
Robinia pseudoacacia commonly called 'Black locust' is an exotic tree which was introduced in the country in the late nineteenth century and the plantations done in Shimla forests did well. It is becoming an important component of agroforestry systems in mid-hill regions, especially in Solan District of Himachal Pradesh. It is valued for leaf fodder, timber and as honeybee flora. Being an exotic tree, it is not having its traditional pests but some insects have been encountered feeding on different parts of this tree. Among them, Chaffer beetles were found to feed profusely on the foliage of this tree and take heavy toll of the leaves. Cyclopelta siccifolia (Hemiptera : Pentatomidae) was recorded to be the major pest associated with this tree. Its nymphs and adults were observed to suck the sap profusely from the stem and branches of the tree. Another pentatomid bug Nezara viridula was found to feed on the leaves of R. pseudoacacia. Bagrada cruciferarum adults were also encountered feeding on the leaves. Some other pests of minor importance were also observed to feed on this tree.Keywords
Robinia pseudoacacia, Insect Pests, Agroforestry System, Himachal Pradesh
- Dolichogenidea sp. (Hymenoptera : Braconidae) - a Parasitoid of Locastra muscosalis Walker (Lepidoptera : Pyralidae)
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Indian Forester, Vol 133, No 11 (2007), Pagination: 1513-1518Abstract
Locastra muscosalis Walker (Lepidoptera : Pyralidae) is a serious pest of Pistacia, Apple and Poplars. Larvae of this pest make the webs by uniting the leaves together with the help of silken threads secreted by Lannea grandis and feed voraciously on the leaves of host trees while living inside these webs. The damage caused by this insect is upto an extent that some times the whole tree is defoliated and it is not able to bear the leaves for the remaining season. During the biological study of this pest an egg larval parasitoid has been found to kill this pest. The parasitoid has been identified as Dolichogenidea sp. The parasitoid larva come out of the host body and make a white cocoon before pupation. The adults were black in colour and having transparent wings. The detailed biology of the parasitoid is presented.- Diorhabda lusca, Maulik (Coleoptera : Chrysomelidae), a Serious Pest of Celtis australis in Low and Mid-hills of Himachal Pradesh
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Indian Forester, Vol 133, No 5 (2007), Pagination: 660-664Abstract
Celtis australis Linn. leaves are damaged severely by the larvae and adults of Diorhabda lusca Maulik. These brown coloured beetles started appearing in the last week of March with the new flush of leaves. In a period of 8 months i.e. from March to October, the insect completed 4 generations and the adults of the 4th generation underwent hibernation to resume the activity in next March. The biology, nature and extent of damage is presented in this paper.- Some Important Insect Pests of Poplars in the Western Himalayas and their Management
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Indian Forester, Vol 131, No 4 (2005), Pagination: 553-562Abstract
Poplars hold an important place in the agroforestry systems because of their multiple use, fast growing nature and short rotation. Tbey are being grown on large scale in the plains of nortbern India, valley area of Himachal Pradesh and Jammu & Kashmir. Different Poplar clones being grown on these areas are invariably attacked by a number of insect pests. Various insect species invade Poplar plant parts right from the nursery stage to the maturity of the crop. Some of the important inseet pests infesting these trees include Apriona cinerea, Eucosma glaciuta, Plagiodera versicolora etc. They not only affect the growth and render them unfit for proper utilization but also sometimes threat their survival. An account of insect pests associated with Poplars in western Himalayan region in respect of their incidence, nature and extent of damage and management strategies have been discussed in the text.- Role of Insect Pests in the Mortality of Kikar and Shisham in Punjab
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Indian Forester, Vol 131, No 12 (2005), Pagination: 1577-1582Abstract
In the recent past, large scale mortality of Kikar (Acacia nilotica Willd.) and Shisham (Dalbergia sissoo Roxb.) was observed in Punjab and the adjoining states. These species are grown extensively in various sites in Punjab, on roadsides drain sides, canal sides, etc. Termites were found to be the common enemies of both the trees. Celosterna scabrator grubs were found to be associated with kikar trees throughout Punjab. In addition, Plecoptera reflexa was found associated with shisham and lndarbella quadrinotata was found to cause damage to kikar trees. These insects are discussed in detail in this paper.- Insect Pests of Robinia pseudoacacia and Paulownia tomentosa in Solan District of Himachal Pradesh
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Indian Forester, Vol 131, No 9 (2005), Pagination: 1235-1237Abstract
No abstract- Biology of Locastra muscosalis Walker (Lepidoptera : Pyralidae) a Defoliating Pest of Pistacia integerrima Stew Ex. Brandis
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Indian Forester, Vol 130, No 5 (2004), Pagination: 573-578Abstract
Pistacia integerrima is a tree of great economic importance because of its ornamental and medicinal values and as its wood is used for making furniture. The defoliation caused in this tree hampers the production ofthe leaf galls formed on this tree which are capable of curing various diseases. Out of different defoliators, Locastrti muscosalis is the most important one which takes heavy toll of the foliage. This pests is reported for the first time on this tree. It is gregarious pest which live on the tree by making webs and is capable of defoliating the whole tree. The eggs are laid in the last week of June. 1st, 2nd and 3rd instar larvae are gregarious in hebaviour, but in the 4th and 5th instar the larvae change to solitary hebaviour. Larvae hibernate inside the silken cocoon from September onwards upto next June when pupation take place inside the cocoons made for hibernation. The black coloured adults with greenish tinge emerge in last week of June. Its detailed biology is being reported.- Insect Pests Associated with Kikar and Shisham in Punjab
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Indian Forester, Vol 129, No 12 (2003), Pagination: 1517-1521Abstract
Kikar (Acacia nilotica Willd.) and Shisham (Dalbergia sissoo Roxb.) are integral part of agro-ecosystem in the plains of North-West India. In the recent past large scale mortality of these trees was observed in this area and other parts adjoining the North-West and North-East Himalayas. So as to investigate the different mortality factors of these trees in the State of Punjab some of the areas with large scale of mortality of these trees were surveyed during the year 2001 determining the insect-pest association. It was found that grubs of Coleopteran beetles were most predominant in dead and drying trees in most of the areas. However in certain case termites and bark eating caterpillars were also found associated with Kikar and Shisham trees. A detailed account of insect-pests associated with Kikar and Shisham trees and survey report in particular have been discussed in the text.- Bacillus circulans a Promising Biocontrol Agent of Locastra muscosalis a Defoliating Pest
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Indian Forester, Vol 132, No 9 (2006), Pagination: 1185-1188Abstract
Locastra muscosalis is a serious defoliating pest of Pistacia intergerrima, apple, poplars and walnut. Its larvae feed gregariously on the foliage. The larvae were found to die from 3rd instar onwards. Bacillus circulans was found to be the cause of mortality. The bacterial was isolated and was tested for its pathogenecity at different O.D. levels at 540 nm. The 4th instar was found to be most susceptible to the bacteria in all levels.- Incidence and Control of Poplar Stem Borer, Apriona cinerea, Chevrolet (Cerambycidae : Coleoptera) in Paonta Valley of Himachal Pradesh
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Indian Forester, Vol 124, No 7 (1998), Pagination: 556-560Abstract
Incidence of Poplar stem borer, Apriona cinerea, Chevrolet on plants of 4 age groups viz. 6 months, 1-2,2-3 and 5-6 years was recorded at village Jagatpur, Paonta Valley, Sirmour, Himachal Pradesh during 1994. No attack of the pest was recorded on 6 months old plants but 2-3 year aged plants were heavily infested (88%) by the pest as compared to other age groups where infestation ranged between 2-27%. Maximum mean number of holes bored per plant in the most susceptible age groups was 7.6 and 23.0 respectively. Out of the five insecticides viz. methyl parathion, dichlorvos, cypermethrin, phorate and furadan and thrce modes of insecticidal application spot treatment, spraying and soil treatment were tested against this borer in summer of 1994. Spot and spray applications of methyl parathion, dichlorvos and cypermethrin each at 0.01 % conc. were found to give 7.80 per cent kill of the pest. Soil application of phorate and furadan @ 25 gm/plant was found ineffective.- Outbreak of Mylabris pustulata Thunb. on Paulownia tomentosa at Nauni in Himachal Pradesh
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Indian Forester, Vol 123, No 7 (1997), Pagination: 679-680Abstract
No abstract- Epidemic of Deodar Defoliator, Ectropis deodarae Prout (Lepidoptera : Geometridae) in the North-West Himalaya
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Indian Forester, Vol 121, No 7 (1995), Pagination: 663-664Abstract
No abstract- Incidence of Leucaena psyllid, Heteropsylla cubana Crawford (Homoptera: Psyllidae) in Himachal Pradesh
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Indian Forester, Vol 119, No 9 (1993), Pagination: 757-759Abstract
No abstract- Outbreak of Indian Gypsy Moth, Lymanantria obfuscata Wlk., on Oak in Himachal Pradesh
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