Annals of Plant Protection Sciences
Year : 2006, Volume : 14, Issue : 2
First page : ( 323) Last page : ( 328)
Print ISSN : 0971-3573.

Forecast model of major insect pests of mung bean

Yadav D.K.*, Singh S.K.

¹P.C. Unit (Linseed), C.S.A.U. of Agri. & Tech., Kanpur-208 002, India.

²Division of Crop Protection, I.I.P.R., Kanpur-208 024, India.

*E-mail: <dkyadavi33@indiatimes.com>

Abstract

Forecast models against thrip (Caliothrips indicus), Jassid (Emposca kerri) and whitefly (Bemisia tabaci) attacking mung bean crop were developed by incorporating various abiotic weather parameters and insect population. Cumulative effect of environmental factors was more pronounced with marked effect of maximum temperature during rainy season, while minimum temperature exhibited negative response in summer alongwith relative humidity. The rainfall was slightly conducive during summer, but its effect in rainy season was adverse on thrip population. Jassid infestation appeared in the third week after sowing with its high intensity from second fortnight of May to first week of June during summer season and its population was adversely affected by high humidity to a significant level but it markedly increased by maximum and minimum temperatures, whereas rainfall was found to be detrimental for its multiplication. The appearance of whitefly was noticed in the second week after sowing as determined on the basis of symptoms of yellow mosaic disease. The disease intensity reached at its peak by the end of May to first week of June, during summer and in the first fortnight of September during rainy season at both the localities.

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Key words

Bemisia tabaci, Caliothrips indicus, Emposca kerri, Forecast model, Vigna radiaia.

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