Cabbage Looper: Control on Cabbage with Formulations of Bacillus thuringiensis and Synthetic Pyrethroids12

1 June 1977

journal article
research article
Published by Oxford University Press (OUP) in Journal of Economic Entomology

Vol. 70 (3) , 366-368
https://doi.org/10.1093/jee/70.3.366

Abstract

Experimental formulations of Bacillus thuringiensis Berliner applied weekly to cabbage at rates of 0.4–1.6 billion IU, reduce numbers of larvae of Trichoplusia ni (Hübner) and crop damage compared to nontreated checks, but were similar in efficacy to commercial preparations of the bacterium. The synthetic pyrethroid FMC 33297 (3-phenoxybenzyl (±) cis-trans-3,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-carboxylate) applied weekly at rates ranging from 0.023–0.091 kg AI/935.4 liter/ha was more effective than other chemicals or B. thuringiensis formulations.

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