王家村预测预报防治桃小试验

Studies on the forecast and control of Carposina sasakii Matsumura with sexual hormone

海城市王家村按预测预报防治桃小,取得很好的效果。桃小的发生与气候条件有密切的关系,2000年6、7月,气候干旱少雨,桃小发生晚,高峰期持续时间短;2001年同期,气候温湿多雨,蛾量大,高峰期持续时间长,但和2000年一样只用药3次。两年的虫果率分别为1.01%,0.12%,而对照两年均为2.31%。经济效益分析表明,如果全村全面推广测报制度,仅防治桃小一项即降低成本近40余万元,若如2000年或2001年的虫果率,可增收15.6万元或26.28万元。

During2000and2001,in order to control Carposina sasakii Matsumura comprehensivly,sexual hormone was used in the forecast of the insect.The results show ed that the occurrence date was closely related to the weather.The1st generation adult occured earlier in2001than in2000and the fastigium of occurrence in2001lasts longer than in2000.The reason was the weather in2001is more suitable for its growth than in2000.The economic profit analysis showed the cost would decrease by400thousand Yuan if the measure was taken by all the fruit farmers in the management of Carposina sasakii Matsumura.