| 两种重要储粮害虫的无公害防治技术研究 |
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| 作者姓名： | 李世广 杨 莉 林华峰 张 磊 沈宗海 许发钱 |
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| 作者单位： | 安徽农业大学植保学院 合肥230036
(李世广，林华峰，张磊)，中国农学会 北京100026
(杨莉)，安徽中谷国家粮食储备库 合肥230031
(沈宗海)，安徽农业大学植保学院 合肥230036(许发钱) |
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| 基金项目： | 安徽省教育厅资助项目“杀虫微生物对蛴螬的应用技术研究”(2002HBL17)。 |
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| 摘 要： | 通过3种虫生真菌、2种苏云金杆菌粉剂(Bt-1和Bt-2)及48%乐斯本乳油对生活在小麦中的谷蠹、长角扁谷盗进行毒力试验,结果表明:Bt-1粉剂对两种储粮害虫具有较高的毒力,对谷蠹LD50为15.75ug/g,对长角扁谷盗LD50为8.06ug/g;三种虫生真菌对这两种害虫侵染力较弱,最高校正死亡率仅为55.0%。48%乐斯本乳油对两种储粮害虫的熏蒸效果较好,在0.80ml/L浓度下,谷蠹、长角扁谷盗死亡率均达到100.0%。
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| 关 键 词： | 储粮害虫 谷蠹 长角扁谷盗 无公害防治 |
Study on Socially Harmless Controlling Technologies on Stored Grain Insect Pests |
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| Authors: | Li Shiguang Yang Li Lin Huafeng Zhang Lei Shen Zonghai Xu Faqian |
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| Institution: | (1College of Plant Protection, Anhui Agricultural University, He Fei 230036; 2China Association of Agricultural Science Societies, Beijing 100026; 3Anhui Zhonggu State Grain Storage, He Fei 230031) |
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| Abstract: | In this paper, the virulence of three entomogenous fungi strains (B-99, Pfu02, Nr-98-1), Bt and Chlorpyrifos EC to Rhizopertha dominica and Cryptolestes minutus living in wheat were tested. The result shows as follows: The Bt-1 WP has strong virulence to this two pest species. LD50 to R.dominica is 15.75ug/g, which of C. minutus is 8.06ug/g. The highest mortality is only 55% when the two pest species were treated with three entomogenous fungi strains in three days later; the result indicates that the virulence of three fungi strains to the two pest species are poor. The suffocating effects of 48% Chlorpyrifos to the two pest species are good, the death rates of R.dominica and C. minutus reached 100.0 percent at the density of 0.80ml/L. |
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| Keywords: | Stored grain insect pest Rhizopertha dominica Cryptolestes minutus Socially harmless control |
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