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Ramya, H. R.
- Predatory Coccinellids of Insect Pests of Assam Lemon (Citrus limon L. Burmf) in Jorhat District of Assam
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Authors
Affiliations
1 Department of Entomology, Assam Agricultural University, Jorhat-785013, Assam, IN
1 Department of Entomology, Assam Agricultural University, Jorhat-785013, Assam, IN
Source
Journal of Biological Control, Vol 30, No 2 (2016), Pagination: 121-123Abstract
The diversity of predatory coccinellids of insect pest of Assam Lemon (Citrus limon L. Burmf) was studied in the citrus orchard of Assam Agricultural University, Jorhat during 2015-2016. Twelve species of coccinellid beetles viz., Coccinella transversalis (Fabricius), Coelophora bowringii (Crotch), Coelophora saucia (Mulsant), Cryptogonus bimaculatus (Kapur), Cryptogonus spp., Cryptolaemus montrouzieri (Mulsant), Harmonia conglobata (Linnaeus), Harmonia dimidiata (Fabricius), Illeis confusa (Timberlake), Propylea spp., Platynaspis kapuri (Chakraborty and Biswas) and Scymnus spp. were recorded feeding on various sucking pests. Among the coccinellids, Coccinella transversalis and Harmonia dimidiata were recorded in maximum number (9.0 and 8.4 per tree respectively) with a relative abundance of 17.79 and 16.60 per cent respectively while Cryptogonus spp. was recorded lowest (0.9 per plant with relative abundance of 01.79 per cent).Keywords
Assam Lemon, Coccinellids, Predators, Diversity, Relative AbundanceFull Text
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