1970—71年,我场一些零星柑桔植株,春季开花满树,幼果着生良好,但是,转瞬间全部落光。经检查除生理落果外,卷叶娥蛀害也是一大敌。卷叶蛾不但吐丝缀叶为害,而且在幼果期和采果前均蛀害果实,造成大量落果。如我场百果园,1972年9—10月拾得被害虫果1236斤,占总收获量的 From 1970 to 71, some scattered citrus plants in my field filled the trees with flowers in spring, and the young fruits were well-born. However, they all fell into light momentarily. In addition to physical and fruit check in addition, the roll leaves E bore is also a major enemy. Leaf roller moth not only sprout leaves decorated with leaves, but also in the young fruit and picking fruits are moth, causing a large number of fruit drop. Such as my field hundred orchards, from September to October 1972 picked up 1236 pounds pests, accounting for the total amount of harvest