曲足侎缘蝽生物学特性及防治

Life cycle and pest management of Mictiopsis curvipes

为了有效防治曲足侎缘蝽Mictiopsis curvipes,通过室内饲养和野外观察相结合的方法,对该虫的生物学特性进行了观察研究。结果表明,曲足侎缘蝽在云南昆明1 a发生2代,世代重叠,以成虫在枯枝落叶层内越冬。1 a有2次危害高峰,7月中旬到9月中旬成虫和若虫共同危害云南含笑Michelia yunnanensis等树种。5月中旬和8月初适时对云南含笑进行整形修剪,是防治曲足侎缘蝽的较好措施。

The insect, Mictiopsis curvipes, is a major pest of the host plant, Michelia yunnanensis. To control this pest, the insect＇s biological characteristics were studied through field observations from March of 2004 to August of 2007 in the campus of Southwest Forestry College and laboratory rearing. There were two, overlapping generations for M. curvipes each year with the adults overwinten.＇ng in the litter layers on the ground. Two damage peaks, from mid July to mid September, were observed each year. The most serious damage period appeared when adults and nymphs emerged together. An effective method to control the pest was topping and pruning the host in mid May and early August. [ Ch, 1 fig. 3 tab. 13 ref.]