美国山核桃荔枝拟木蠹蛾生物学特性研究

Study on Biological Characteristic of Arbela dea Swinhoe of Carya illinoensis

在室内外对美国山核桃荔枝拟木蠹蛾形态特征及生活习性进行初步观察和研究。结果表明:在云南漾濞该虫1a发生1代,以老熟幼虫在树干坑道内越冬。4月上旬至5月上旬化蛹,蛹期10～15d。4月中旬至5月下旬成虫羽化,卵多产在枝干树皮裂缝、伤口等处,孵化率高达80%以上,卵期16d;4月下旬幼虫开始孵化,一直取食到11月中旬才逐渐减少活动,进入越冬。

Morphological characteristics and life habits of Carya illinoensis Arbela dea Swinhoe were observed and studied in the room inside and outside.The results showed that 1 year happened one generation of Arbela dea Swinhoe in Yangbi.The mature larvae in the trunk tunnel in winter.Early April to early May turn pupal,pupal stage was 10~15 d,Mid April to May the moth emergence occur.The female moth always laid eggs to the crevice and wound in stem bark,the hatching rate of the egg was 80% and egg stage was 16 d.In late April larvae began to hatch,had been taking to mid-november it gradually reduce activities,into the winter.