竹后刺长蝽生物学特性观察及防治研究

Studies on Biology Characteristic Observation and Control Experiment in Pirkimerus japonicus Hidaka

竹后刺长蝽于2004年8月在裕安区西南部同兴寺乡石板河村柳冲首次发现。2005年6月在发现地设立固定样点,进行了野外观察试验,发现竹后刺长蝽在皖西一年共发生3代,以若虫和成虫在竹节内越冬。越冬若虫和成虫有取食现象,无明显休眠现象。竹后刺长蝽多发生在海拔300 m左右低山,以山坡北向郁闭度大、坡下为害最重。防治试验表明用DDV、氧化乐果和杀虫双防治死亡率均在80%以上,氧化乐果防治死亡率达99.9%。

Abstract Pirkimerus japonicus Hidaka was first found in Shiban village, Tongxingsi countryside, southwest of Yuan district in Aug. 2004. In the filed observation on fixes spots set in the discovered place in June 2005, It was found that Pirklmerus japonicus happened 3 generations in a year in west Anhul province. The nynrphae and adult insect lived through the winter in bamlboo nodes. The overwintered nymphae and adult insect had fetching phenomena without evident dormancy. Pirn-kimerus japonicus mostly happened on low mountain at elevation of about 300 m, with great crown closure in north hillside and most serious harm under hillside. The control test showed that DDV and omethoate and dimehypo could get the control rate of over 80%, in wtich the control effect of omethoate reached 99.9%.