| 黑龙江省柳绵蚧生物学特性的初步研究 |
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| 引用本文： | 张学科 马淑贤. 黑龙江省柳绵蚧生物学特性的初步研究[J]. 东北林业大学学报, 1994, 22(3): 10-15 |
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| 作者姓名： | 张学科 马淑贤 |
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| 作者单位： | 东北林业大学，黑龙江省金山屯林业局，黑龙江省望奎县林业局，东北林业大学 |
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| 摘 要： | 柳绵蚧在黑龙江省林甸县主要为害行道绿化柳树，其为害高达９０％，使树势生长衰弱，导致枝条枯死。一年发生一代，以２龄若虫在柳树的枝干部越冬，成虫的发生期为５月上旬至６月中旬，初孵若虫出现在７月中旬。柳绵蚧有两种寄生小蜂，其中食蚧蚜小蜂对柳绵蚧的控制力最强，一年发五两代，越冬代寄生率为１６．９％，第一代寄生率为５０．７９％。
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| 关 键 词： | 柳棉蚧 生物学特性 |
A PRELIMINARY STUDY ON THE BIONOMICS OF PULVINARIA SALICICOLA BORCHS IN HEILONGJIANG PROVINCE |
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| Zhang Xueke,Li Chengde,Zhang Hong. A PRELIMINARY STUDY ON THE BIONOMICS OF PULVINARIA SALICICOLA BORCHS IN HEILONGJIANG PROVINCE[J]. Journal of Northeast Forestry University, 1994, 22(3): 10-15 |
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| Authors: | Zhang Xueke Li Chengde Zhang Hong |
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| Affiliation: | Zhang Xueke;Li Chengde;Zhang Hong(Northeast Forestry University)Ma Shuxian(Jinshantun Forestry Bureau of Heilongjiang Province)Yuan Xingcai(Forestry Bureau of Wangkui County. Heilongjiang Province) |
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| Abstract: | Pulvinaria salicicola Borchs mainly happens on road-side afforested willows in Lindian County of Heilongjiang Province and the injury rate of the pest is as high as 90%.which can weaken the growth of the trees and cause death of the branches. The pest happens one generation a year,overwinters on branches by 2nd instar nymph. Adult emerges from early May to middle of June, 1st instar nymph emerges in middle of July.Two species of parasite chalcids were found on P.salicicola,between which Coccophagus sp.has the best control capacity on the pest,occuring two generations a year. The parasite rate of overwintering generation is 16. 90%, while that of 1st generation is 50. 7%. |
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| Keywords: | Coccidae Pulvinaria salicicola Bionomics |
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