柚园黑蚱蝉田间消长规律及防治技术

The field population dynamic and control technology of black cicada in fragrant pomelo orchard

历时9年观察表明:黑蚱蝉(Cryptotympana atrata(Fabricius))在柚园年发生危害高峰期明显,且持续时间较长;若虫羽化必需附着物,其中61.82%～89.45%在晚上羽化.实施资源式联防联治,环形水槽拾若虫,利用白(绿)僵菌黑蚱蝉虫尸或白僵菌杀虫剂等防治技术,防治效果和保果效果显著.

9-year research showed that black cicada had obvious occurrence in pomelo orchard.The correlation between the nympha had been significantly out of soil molting and raining rate of progress. It was obvious that the harm of black cicada reached peak in la. The nympha emergency must have attachment, and black cicada nympha between 61.82% and 89.45% emerged in the evening. We applied the allied control techniques by ＂resources type＂, picked the nympha by ＂wreath form sink＂ and control techniques by Beauveria bassiana （Metarhizium） black cicada corpse or Beauveria bassiana insecticide, etc. It was obviously higher than prevention and cure result.