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当前位置: 首页 > 文章 > 桥山林区松大蚜的发生与防治 陕西林业科技 2016 (5) 54-56
Position: Home > Articles > Prevention and Control of Cinara pinitabulaeformis in Forest Area of Qiaoshan Shaanxi Forest Science and Technology 2016 (5) 54-56

桥山林区松大蚜的发生与防治

作  者：
罗科资;高彦飞
单  位：
延安市桥山林业局
关键词：
桥山林区;松大蚜;发生;危害;药剂防治
摘  要：
通过野外观察调查和样地施药试验,研究了桥山林区松大蚜生活习性、对树木的危害特征,以及用50%乐果乳油、20%氰戊菊酯乳油、50%久效磷乳油、苦参烟碱乳油等农药不同浓度防治松大蚜的效果,结果表明,松大蚜在乔山林区1年发生8代,秋季高温多雨时可出现9代,以卵在松针上越冬,1年发生2次高峰期,分别是5-6月、9-10月,秋季更严重;松大蚜可危害油松、白皮松和樟子松,以油松纯林为重,使得松针尖端发红、发干,针叶干枯、脱落,树势衰弱,形成枯枝,甚至整株死亡;4种药剂最高防治效果及最佳浓度为50%乐果乳油1 000倍液防治效果为96.0%,20%氰戊菊酯乳油3 000倍液防治效果为99.0%,50%久效磷乳油1 000倍液防治效果为98.7%、苦参烟碱乳油1 500倍液防治效果为91.0%,生产中可选取这4种农药的最佳浓度防治松大蚜。
译  名：
Prevention and Control of Cinara pinitabulaeformis in Forest Area of Qiaoshan
作  者：
LUO Ke-zi;GAO Yan-fei;Qiaoshan Forestry Bureau of Yan'an;
关键词：
Forest area in Qiaoshan;;Cinara pinitabulaeformis;;damage;;occurrence;;control by pesticide
摘  要：
Through years observation and survey in Qiaoshan forest area,characteristics and biological habits of Cinara pinitabulaeformis summed up in terms of their living habits and damage to trees.Different concentrations of pesticides like rogor emulsifying oil 50%,fenvalerate-trichlorphon emulsifiable concentrate 20%,monocrotophos emulsifiable concentrate 50%and matrine emulsion were applied for the control of Cinara pinitabulaeformis and generated different effects.The result showed that Cinara pinitabulaeformis occurs with 8generations in one year,and ninth generation would occur if the autumn is high in temperature and rainfall.It spent overwinter in eggs hanging on needle leaves.Two summit periods occur in one year,May to June and September to October,more severe in autumn.The damage mainly happened to pine trees,especially in Pinus tabulaeformis,causing leaves becoming red,dry and falling or even the whole tree death.The four pesticides performed well,respectively,96% of rogor emulsifying oil 50%,1 000times;99.0% of fenvalerate-trichlorphon emulsifiable concentrate 20%,3 000times;98.7% of monocrotophos emulsifiable concentrate 50%,1000 times,and 91.0% of matrine emulsion,1 500 times.

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