Management of diamondback moth, plutella xylostella (lepidoptera: plutellidae) using various chemical practices

Dakshina A. Seal

Abstract


Diamondback moth (DBM), Plutella xylostella (L.) is an important pest of various cruciferous vegetables in Florida and other parts of the United States. Various studies were conducted in 2002 and 2003 to control this pest. Esfenvalerate significantly reduced DBM larvae of various development stages. S-1560 provided as good results as spinosad; and was better than esfenvalerate. Addition of piperonyl butoxide or Enervate ® to Fury® did not increase the level of control of DBM in cabbage. Bacillus thuringiensis-based insecticides significantly reduced DBM in cabbage. Novaluron (IGR) at 6-12 oz/ acre was effective in reducing DBM larvae when compared with the nontreated control. Mean numbers of DBM in emamectin benzoate-treated plants did not differ from novalurontreated plants. Spinosad in al studies was superior to all other insecticide treatments in controlling DBM.

Keywords


plutella xylostella; bacteria; growth regulators; insects; pyrethroid; synergist

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283