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介绍了陇东枣产区桃小食心虫的发生危害情况,并总结出了无公害防治技术。3年调查研究和田间观察结果表明:陇东枣产区均有桃小食心虫发生,主要以第1代幼虫危害;危害程度因枣园地型、管理水平、树龄不同而不同,其中川水地枣园危害较重,旱原地枣园危害较轻;管理粗放的枣园危害较重,管理好的枣园危害较轻;老枣园危害严重,新枣园危害较轻。
The occurrence and harm situation of peach moth in Longdong jujube producing area was introduced, and the pollution-free prevention and control technology was summarized. The results of 3 years of investigation and field observation showed that the occurrence of peach moth in Longdong jujube producing area was mainly caused by the first-generation larvae. The damage degree was different due to the jujube type, management level and age, among which jujube Zaoyuan Park is more harmful, and the jujube garden in the dry land is less harmful. The jujube with extensive management is more damaging and the jujube with good management is less harmful. The Zaoyuan Park is seriously endangered and the new Zaoyuan Park is less harmful.