海南省刺桐姬小蜂危害情况调查及防治药剂初筛

A Damage Survey to Erythrina Gall Wasp (Quadristichus erythrinae Kim) in Hainan and Screening of Pesticides

调查海南省18个市县刺桐姬小蜂的危害情况,发现除东方县、白沙县外,其余市县均有不同程度的危害;选用6种不同杀虫剂对刺桐姬小蜂进行室内药效试验。结果表明,室内药效大小顺序为:48%毒死蜱EC>70%吡虫啉WP和25%噻虫嗪WDG>20%啶虫脒WP>乙酰甲胺磷EC和1.65%阿维菌素高效氯氰菊酯WP。

A survey to erythrina gall wasp （Quadristichus erythrinae Kim） infesting Erythrina spp. was made in 18 cities of Hainan Province. The results showed that the erythrina gall wasp （Quadristichus ery＇thrinae Kim） caused damages to Erythrina spp. in various degrees in all the cities except in Dongfang and Baisha cities. Six pesticides were then selected to control the erythrina gall wasp. The result showed that the pesticides had different controlling effect in the order of chlorpyrifos 48% EC 〉 imidacloprid 70%WP and thiamethoxam 25% WDG 〉 acetamiprid 20% WP 〉 acephate 40% EC and （Avermectins ＋ β-Cypermethrin） 1.65% WP.