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腰果云翅斑螟(Nephop teryx sp.)是我国腰果的新害虫,其幼虫蛀食坚果及果梨,据1985年调查最高为害率达60.2％。幼嫩坚果被蛀食后,种仁无法形成,最后导致干枯;较老的坚果被蛀食后,种仁扭曲,降低商品价值;果梨被蛀食后,引起腐烂。腰果云翅斑螟一代需时30～34天。此虫的发生与腰果结果期相吻合。成虫白天躲于枝条上,其活动盛期在傍晚及清晨;一头雌成虫最高产卵量125粒,卵产于果腹、果蒂、果柄及花萼萼片处;幼虫5龄;化蛹场所主要在植株冠幅下离土表约1厘米深的土中。建议喷射敌敌畏或杀螟松并结合摘除带虫果及收集落地被害果,挖掘蛹等综合措施对此虫进行防治。
Nephop teryx sp. Is a new pest of Chinese cashew nuts. Its larvae eat nuts and fruit pears. According to the survey in 1985, the highest damage rate was 60.2%. When the young nut is eaten, the kernel can not be formed and eventually leads to dryness. When the older nut is eaten, the kernel distorts and the value of the commodity deteriorates. After being eaten, the pears cause decay. Casuarina pickle generation takes 30 to 34 days. The occurrence of this pest and cashew results coincide. Adults hid in branches during the day, and their activities flourished in the early evening and early morning. The maximum number of eggs laid by a female adult was 125 eggs, which belonged to the fruit belly, fruit peduncle and fruit calyx sepals. The larvae were 5 years old. Under the crown of the soil crown about 1 cm deep in the soil. Proposed spraying dichlorvos or fenitrothion and combined with removal of fruit and insect pests and collect the fruits of the ground floor, such as pupae excavation comprehensive measures to control the pest.