Effect of Abiotic Factors on the Incidence of Major Pests of Okra
(Abelmoschus esculentus) and Natural Enemies
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Author:D. Deepika1, T. Abdul Razak2, K. Elanchezhyan3 and M.I. Manivannan4
p-ISSN:0024-9602, Vol:106, Issue: 1-3
DOI:10.29321/MAJ 2019.000228
Abstract
The present research was aimed to study the seasonal incidence of major
sucking pests and the natural enemies on okra Abelmoschus esculentus under field condition at the Department of Agricultural Entomology,
Agricultural College and Research Institute, Killikulam. The crop had revealed
the incidence of sucking pests viz., aphid, jassid, whitefly, mites along with
natural enemies like spiders and coccinellids. The incidence of jassid first
commenced in 43rd SMW (0.30/3 leaves), aphids and whitefly in 44th SMW
(0.10 and 0.35/3 leaves), mite was found in first SMW (25.53/cm2/leaf
area). Earias infestation was found during 49th SMW (7.29 per cent). Natural
enemies such coccinellids and spiders were observed during 45th (0.05/
plant) and 43rd SMW (0.05/plant) respectively.
Key words : Aphids, Jassids, Whitefly, Mites, Coccinellids, Spiders.
