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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2018, Vol. 6, Issue 5
Influence of abiotic factors on the seasonal incidence of major insect pests on cauliflower

R Mishra, BM Mhaske, NM Patil and SB Desale

An experiment was conducted to observe the influence of abiotic factors on the incidence of insect pests viz., diamond back moth, tobacco leaf eating caterpillar, aphids and painted bugs on cauliflower during late-kharif season, 2016 at Farm of Agricultural Entomology Section, College of Agriculture, Dhule. Major activity period of diamond back moth (Plutella xylostella) was observed from 35th to 39th SMW with peak incidence in 39th SMW (7.32 larvae/plant) and tobacco leaf eating caterpillar (Spodoptera litura) was observed from 35th to 47th SMW with peak incidence in 43rd SMW (3.12 larvae/plant) respectively while aphids (Brevicoryne brassicae) appeared from 35th SMW to 47th SMW with peak incidence in 43rd SMW (44.17 aphids/3 leaves/plant). Painted bugs (Bagrada cruciferarum) were observed from 35th to 47th SMW with peak incidence in 42nd SMW (4.23 painted bugs/3 leaves/plants). Analysis of correlation between weather (abiotic) factors and the insect pests of okra showed that population of diamond back moth had a significant positive correlation with minimum temperature (r=0.6475*) and evening RH (r=0.5578*), While tobacco leaf eating caterpillar, aphids and painted bugs showed non-significant relationship with weather parameters.
Pages : 2085-2088 | 840 Views | 328 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
R Mishra, BM Mhaske, NM Patil, SB Desale. Influence of abiotic factors on the seasonal incidence of major insect pests on cauliflower. J Entomol Zool Stud 2018;6(5):2085-2088.

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