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枣桃小食心虫简称枣桃小,俗称枣蛆,是危害枣、苹果、梨、桃、山楂等果实的重要害虫。近年来随着平山县枣树面积的迅速扩大,枣桃小食心虫的危害猖獗,造成严重减产。2002年笔者在平山县温塘镇北马中枣园进行试验,“五道防线”生物防治枣桃小食心虫危害措施起到了明显效果,经2003年在河北省平山县大面积推广后,防治效果达97%以上。主要措施是:一覆:春季对树干周围半径100厘米内的地面覆盖地膜,能抑制幼虫出土、化蛹、羽化。二挖:春季解冻后至幼虫出土前,在树干根颈附近挖拣越冬茧,尤其注意地下根皮裂缝处。三扬:在晚秋幼虫脱果入土做茧越冬后,把距枣树干约80厘米,深16厘米的表土铲起撒于田间,
Jujube peach small dragonfly referred to as jujube small, commonly known as jujube maggot, is endangering jujube, apple, pear, peach, hawthorn and other fruit of the important pests. In recent years, with the rapid expansion of jujube tree area in Pingshan County, jujube pest insects rampant rampant, causing serious cuts. In 2002, the author conducted a trial in Zumayuan of Beima in Wentang Town of Pingshan County. After the “Five Lines of Defense” biological hazard prevention measures of Zizyphus jujuba were effective, after the large-scale promotion in Pingshan County, Hebei Province in 2003, Control effect of more than 97%. The main measures are: a cover: the spring on the tree trunk within a radius of 100 cm within the ground cover film can inhibit larvae unearthed pupation, emergence. Second dig: After thawing in spring to larvae unearthed before digging in the trunk near the neck neck winter cocoon, with particular attention to the root bark cracks. Three Young: In late autumn larvae detached into the soil to do the cocoon after winter, about 80 cm away from the jujube tree trunk, 16 cm deep shovel spatula sprinkled in the field,