Come from：Shandong Caman Biotech Co., Ltd. Class：News Date：2023/4/20 浏览统计：140 |
Codling moth is a key pest of pome fruit with a low economic threshold, and as such requires an effective monitoring system that provides accurate information on the seasonal occurrence and development of the pest. Adult populations should be monitored weekly during the growing season with sex pheromone traps to provide information on the start, peak, and end of the moth flights, the relative size of populations, and to monitor the effectiveness of control. The efficacy of pheromone traps in timing treatments is enhanced with the use of the codling moth degree-day phenology model, which permits chronological events in codling moth development, such as first egg hatch or commencement of adult flights, to be pin-pointed. The exclusive use of insecticides for control is not sustainable due to the development of codling moth resistance to the insecticides. Pheromone-based mating disruption has been developed as an excellent and ecologically-compatible means of controlling codling moth in commercial orchards. Dispensers containing components of the female sex pheromone are attached to trees at densities of 300-1000 per ha, depending on the product being used and the population level. Mating disruption in combination with selected insecticides has led to a significant reduction in insecticide use for codling moth control. Where circumstances dictate the use of insecticides only, an insecticide resistance management strategy should be followed. This usually involves treating each larval generation with an insecticide from a different chemical group. Other pheromone-based control methods for codling moth involve the use of “attract and kill” bait stations, and mass trapping using a very high density of pheromone traps. |
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