行政职权
永恒主义>吴瑞云
Evaluations of emamectin benzoate and
propiconazole for protecting individual Pinus contorta from mortality attributed to colonization by Dendroctonus ponderosae and associated fungi 期刊名称： Pest Management Science
作者： Fettig, Christopher J,Munson, A Steven,Grosman, Donald M,Bush, Parshall B
花椒水的功效与作用
年份： 2014年
期号： 第5期
关键词： fungicides; incticides; lodgepole pine; mountain pine beetle;
Scolytinae; tree injections
教资考试要求摘要：BACKGROUNDProtection of conifers from bark beetle colonization typically involves applications of liquid formulations of contact incticides to the tree bole. An evaluation was made of the efficacy of bole injections of emamectin benzoate alone and combined with the fungicide propicona
zole for protecting individual lodgepole pine, Pinus contorta Dougl. ex Loud., from mortality attributed to colonization by mountain pine beetle, Dendroctonus ponderosae Hopkins, and progression of associated blue stain fungi.RESULTSInjections of emamectin benzoate applied in mid-June did not provide adequate levels of tree protection; however, injections of emamectin benzoate+propiconazole applied at the same呼风唤雨的世纪
便秘怎么快速排便time were effective for two field asons. Injections of emamectin benzoate and emamectin benzoate+propiconazole in mid-September
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