Efficacy of Emamectin Benzoate and Bacillus thuringiensis at Controlling Diamondback Moth (Lepidoptera: Plutellidae) Populations on Cabbage in Florida

  • Gary L. Leibee
  • Richard K. Jansson
  • Gregg Nuessly
  • James L. Taylor


Emamectin benzoate (MK-244; Merck & Co., Rahway, NJ), used alone and alternated with Bacillus thuringiensis (Berliner) ssp. aizawai (Bta), Bta alone, and B. thuringiensis ssp. kurstaki (Btk) alone, were evaluated for control of diamondback moth, Plutella xylostella (L.), in head cabbage at three locations in Florida. Additional treatments unique to each location were also evaluated. Emamectin benzoate alone, Bta alone, emamectin benzoate alternated with Bta, and mevinphos were shown to be effective. Btk was less efficacious than Bta at two locations.
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