利用地膜防治枣园枣尺蠖效果初探

Preliminary study on controlling Sucra jujube Chu with film in jujube orchard

为探索对枣园主要害虫枣尺蠖的低成本绿色防控技术,本试验研究了3种地膜覆盖处理对枣尺蠖的防治效果。结果表明,地膜覆盖处理的枣尺蠖越冬蛹羽化时间较未覆膜对照约提前10d;普通白色塑料地膜、白色液体地膜和黑色液体地膜均能有效降低越冬蛹的羽化出土率,分别较未覆膜对照降低100%、81.4%和93.0%。通过对各处理土壤温、湿度的测定发现,地膜覆盖处理显著提高了土壤温、湿度,推测其是造成越冬代枣尺蠖成虫羽化期提前的原因。

To investigate a low-cost green control strategy against Sucr a jujube Chu,a major pest of jujube,we studied controlling efficiencies of three film mulching treatments in jujube orchard.The results showed that emergence time of overwintering generation adults of S.jujube treated with film mulching was about 10 days earlier than that with blank control.Emergence rate of overwintering generation adults of S.jujube could be effectively reduced by covering white plastic film as well as white and black liquid film,which were 100%,81.4%,and 93.0%lower than that of the control,respectively.Based on data of soil temperature and humidity,it was found that the film mulching treatment significantly increased the soil temperature and humidity,which was presumed as the cause of early emergence of overwintering generation.