PEST SUCCESSION AND ECOFRIENDLY MANAGEMENT OF INSECT PESTS OF CABBAGE (Brassica oleracea var. capitata L.)
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Date
2021
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DEPARTMENT OF AGRICULTURAL ENTOMOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY ANAND
Abstract
It was indicative from the studies that aphid, Lipaphis erysimi Kalt. was
commenced from second week of January and persisted till first week of March and
attained its peak (79.08 aphids/3 leaves) during 3rd week of February (7th SMW). The
population of diamondback moth, Plutella xylostella L. was initiated from third week
of January and persisted till first week of March and attained its peak (8.34 larvae/3
leaves) during 3rd week of February (7th SMW). Head borer, Helicoverpa armigera
Hub. was noticed from first week of January and persisted till fourth week of February.
It reached its peak (2.23 larvae/3 leaves) during 1st week of February (5th SMW). The
population of leaf eating caterpillar, Spodoptera litura Fab. was noticed from first week
of January and persisted till fifth week of February and its peak (2.09 larvae/3 leaves)
was observed during 1st week of February (5th SMW). The occurrence of coccinellid
beetle was started from third week of January to first week of March reached its peak
(0.87 beetle/3 leaves) during 3rd week of February (7th SMW). The syrphid fly
population was noticed from fourth week of January to first week of March and present
throughout the season. It was at its peak (0.73 maggot/3 leaves) during 4th week of
February (8th SMW).