Field trials were conducted in China in 2008 and 2009 to evaluate the efficacy of mating disruption （MD） on diamondback moth, Plutella xylostella, in cabbage, Brassica oleracea var. capitata. Effectiveness was posit...Field trials were conducted in China in 2008 and 2009 to evaluate the efficacy of mating disruption （MD） on diamondback moth, Plutella xylostella, in cabbage, Brassica oleracea var. capitata. Effectiveness was positively correlated with the MD dispenser density in the field. A density of 167 MD dispensers per ha produced an average population decrease of about 50% compared to the conventional-practice field. Significant fewer males were captured in pheromone-treated and conventional-practice fields than in the blank control field, but the difference was not significant between the pheromone-treated and conventional-practice fields. In addition, fewer eggs and larvae were observed in pheromone-treated fields. Our results suggest mating disruption coupled with minimal insecticidal supplements is a promising solution for resistance management and control of diamondback moth infestation.展开更多
基金The authors would like to thank Prof. Anthony M. Shelton and Ms. Hilda L. Collins in Cornell University for review- ing the manuscript. This work was funded by grants from the National Basic Research and Development Program, China （2009CB 119004）, Special Fund for Agro-scientific Research in the Public Interest （201103021） and the Nat- ural Science Foundation of China （31071709）.
文摘Field trials were conducted in China in 2008 and 2009 to evaluate the efficacy of mating disruption （MD） on diamondback moth, Plutella xylostella, in cabbage, Brassica oleracea var. capitata. Effectiveness was positively correlated with the MD dispenser density in the field. A density of 167 MD dispensers per ha produced an average population decrease of about 50% compared to the conventional-practice field. Significant fewer males were captured in pheromone-treated and conventional-practice fields than in the blank control field, but the difference was not significant between the pheromone-treated and conventional-practice fields. In addition, fewer eggs and larvae were observed in pheromone-treated fields. Our results suggest mating disruption coupled with minimal insecticidal supplements is a promising solution for resistance management and control of diamondback moth infestation.
