星天牛在红树植物无瓣海桑上的发生规律

林间调查及室内饲养结果表明:星天牛Anoplophora chinensis(Forster)在珠海无瓣海桑上1 a发生1代,以幼虫在树干木质部虫道内越冬,翌年2月下旬开始活动,3月中旬化蛹,3月下旬开始羽化,5月中旬达羽化高峰,羽化后不久交配产卵。6月中上旬为幼虫孵化高峰期,幼虫孵化后约1个月开始入侵木质部。以4月底至5月初防治成虫,5月中下旬防治幼虫为宜。

Occurrence regularity of Anoplophora chinensis on mangrove plant Sonneratia apetala

The result of forest survey and indoor rearing showed that A.chinensis attacking S.apetala had one generation a year in Zhuhai and overwintered as larva in the xylem of the trunk.It revived in late February the next year,pupated in mid March,emerged in late March with a peak in mid May and mated and laid eggs shortly after the emergence.The hatch peak of the new generation was in mid June and the larvae invaded the trunk 1 month after the hatching.So,the appropriate time for the control of the adult was from late April to early May and for the control of the larva was between mid and late of May.