EFFICACY OF BETA-CYFLUTHRIN AGAINST CRUCIFEROUS PESTS

RAMESHWAR SINGH RATTAN, S. K. PATYAL, MEENA THAKUR

Abstract


Efficacy of beta-cyfluthrin (Bulldock 025') was tested against the major insect pests of cabbage and cauliflower during the cropping seasons 1998-1999 and 1999-2000 under the mid hill conditions of Himachal Pradesh at Solan (Himachal Pradesh, North India). During each season beta-cyfluthrin was applied twice at the rate of 12.50, 18.75 and 25.00g a.i./ha at fortnight interval. The bio-efficacy studies against Brevicoryne brassicae L., Pieris brassicae L., and Plutella xylostella L. revealed that beta-cyfluthrin was not only effective at higher dosage (25.00g a.Uha) but also provided good control at lower dosage (18.7 aj./ha). All the treatments were superior over control.
From the pooled data it was also concluded that beta-cyfluthrin remained effective against insect pests at least for 7-14 days on cabbage and cauliflower.


Keywords


beta-cyfluthrin; bio-efficacy; cabbage; cauliflower

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