摘要
人心果斑螟是危害人心果的主要新害虫,幼虫蛀食果实、花蕾及嫩梢,果实被害率平均达42.3％。在海南岛年发生10～11代,一世代需时28～35天;成虫夜出性,产卵量9～123粒,多产于果实表面;幼虫4～5龄,老龄幼虫多在果内化蛹;成虫羽化时间多在20—24时。清除被害果,修剪受荫枝,禁止虫果外运,是较为简便的防治方法。
Nephopteryx sp. is a mew pest recorded that damages Achras sapota on Hainan Island. The larvae of the pest bore the fruit, flower buds and tender shoots of the tree. The damage rate of fruit averaged 42.3％. Nephopteryx completes 10-11 generations annually on Hainan Island and its life cycle takes 28-35 days. The adult is nocturnal and lays 9—123 eggs each time, which are mainly located on the surface of the fruit. The larva has 4—5 instars. Completey developed larvae pupate chiefly inside sapodilla fruit. Emergence takes place mainly between 8—12 p. m. Elimnia ting or banging the outflow of infested fruit and pruning shaded shoots are simple ways to control the borer.
出处
《热带作物学报》
CSCD
1989年第1期107-111,共5页
Chinese Journal of Tropical Crops
关键词
人心果
斑螟
发生规律
防治
Sapodilla
Nephopteryx sp.
morphology
habit
outbreak
pest control
