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甲酸乙酯熏蒸菜豆象的初步研究

作  者:
姚洁;戴仁怀;杨洪;廖应江
单  位:
贵州大学昆虫研究所
关键词:
甲酸乙酯;菜豆象;熏蒸活性
摘  要:
本文利用广口瓶密闭熏蒸法,测定了不同浓度、时间和温度条件下甲酸乙酯对菜豆象的熏蒸效果。结果表明:选用浓度为45μL/L处理24 h或50μL/L处理12 h,均能使其成虫达到90%以上的死亡率,说明甲酸乙酯具有良好的速效性;菜豆象的熏蒸效果随熏蒸浓度的增加、温度的升高和时间的延长而逐渐增强;各虫态耐药性比较表明:甲酸乙酯浓度的高低对菜豆象各虫态耐药性影响较大,低浓度下卵的耐药性最差,而高浓度下成虫和卵的耐药性最差。
译  名:
Fumigation activity of ethyl formate against Acanthoscelides obtectus(Say)
作  者:
Yao Jie;Dai Renhuai;Yang Hong;Liao Yingjiang;Institute of Entomology, Guizhou University;
关键词:
ethyl formate;;Acanthoscelides obtectus(Say);;fumigation activity
摘  要:
In this paper,we sealed jar to fumigate Acanthoscelides obtectus(Say). The effects of ethyl formate fumigation activity to A. obtectus were measured under different concentrations,time and temperature conditions. Results showed ethyl formate has a very fast-acting fumigation on A. obtectus. After treated A. obtectus with a concentration of 45 μL/L for 24 hours or 50 μL/L for 12 hours,ethyl formate can make its mortality reached more than 90%. Increasing the concentration,temperature and time of ethyl formate,the mortality of adults of A. obtectus(Say) will increase gradually. Comparing the resistance of each state:The level of concentration of ethyl formate significantly affect the resistance of different stages of A. obtectus(Say). The resistance of eggs is the worst at low concentration,while eggs and adult are the worst under high concentration.

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