Pink Bollworm-Gossyplure Studies in the Palo Verde Valley, California

摘要

Gossyplure was applied to cottonfields for control of pink bollworm, Pectinophora gossypiella, as NoMate PBW or Disrupt, in either case alone or with permethrin (0.004 kg a.i./ha) added to the sticker. Numbers of male moths caught in gossyplure-baited Delta traps in pheromone-treated fields were reduced as compared with those caught in insecticide-treated fields. Number caught increased 5 to 10 days after the last pheromone applications. Percentages of flowers infested, seasonal average numbers of infested immature cotton bolls, and damaged mature bolls were higher in fields treated with Disrupt alone than in fields treated with NoMate PBW or Disrupt plus permethrin, NoMate PBW alone, or insecticides alone. The numbers of male moths caught in traps baited with Disr upt LureTape or NoMate PBW fiber lure were not different when placed in fields treated with NoMate PBW, Disrupt, or insectcides.