【摘要】 隆背花薪甲是在河北省大城县新发现的一种枣树害虫 ,为我国新记录种。为更好地掌握其防治规律 ,对其生物学特性、发生规律、防治技术进行了研究。结果表明 :该虫在河北省大城县最初发生于 4月底或 5月初 ,条件适宜可持续至 9月下旬。室内观察 ,卵期 5～ 6d ,幼虫 3龄 ,幼虫期 8～ 10d ,蛹期 4～ 6d ,在河北 1a发生 4～ 5代 ;有明显寄主转移现象 ,4月底至 5月初 ,在苹果、梨、桃及部分疏菜上形成初发高峰 ,5月底至 6月在枣树上形成发生高峰 ,7月转移至其他果树及蔬菜上为害。化学防治适期 6月上旬 ,于枣树花期用乙基 16 0 5 10 0 0倍液 +氯氰菊酯2 0 0 0倍液树冠喷雾 ,防治率达 10 0 %。更多还原

【Abstract】 Cortinicara gibbosa(Herbst) is a jujube pest newly discovered in Dacheng county of Hebei province. This insect is a newly recorded species. In order to better control the pest, its biological features, regularity of outbreaking and control techniques are studied. Results show that the insect, in Dacheng county, appears early in the late April or early may and could last to the middle of September when the enviornment is suilable. Indoor observation shows that its egg stage is 5～6 days, larva stage goes through three instars with a period of 8～10 days,pupa stage is 4～6 days. In Hebei province, the insect has 4 or 5 generations yearly. The observation also shows that the insect changes host plants in a year. In the period from late April to early May,the inset harms apple ,pear, wulnut trees and some vegetables, harms jujube trees from late May to June and transfers to other fruit trees or vegetables in July. Proper chemicals applied in early June can effectively control the insect.更多还原