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当前位置: 首页 > 文章 > 硅藻土杀虫剂处理后储粮害虫成虫体重减轻与死亡 粮食储藏 2005,34 (5) 9-11
Position: Home > Articles > WEIGHT LOSS AND MORTALITY OF STORED GRAIN INSECT PESTS EXPOSED TO INSECTICIDALDIATOMACEOUS EARTH Grain Storage 2005,34 (5) 9-11

硅藻土杀虫剂处理后储粮害虫成虫体重减轻与死亡

作  者：
刘小青;曹阳;李燕羽;陈如水
单  位：
河南工业大学粮油食品学院
关键词：
储粮害虫;硅藻土杀虫剂;体重
摘  要：
研究了硅藻土杀虫剂“普粮泰”对米象、谷蠹、玉米象和锯谷盗成虫体重的影响。在30±1℃、65%±1%RH条件下,试虫分别在0.5~8 g/m2的粉剂药膜上处理1天,它们(顺序同上)的平均体重分别减少了0.1、0.4、0.2和0.2 mg/头,在相同条件下培养7天后,它们的平均死亡率分别为52%、100%、97%和100%。在25±1℃、65%±1%RH条件下,经过1 g/m2粉剂药膜处理锯谷盗1天后,在原条件下不提供食物保持3天,平均每头锯谷盗体重比对照减少了0.2~0.3 mg/头,平均死亡率达到76%。由此可见,硅藻土杀虫剂处理的储粮害虫成虫体重明显减少(P<0.05),死亡率很高,说明硅藻土杀虫剂可能破坏了试虫体壁保持体内水分的蜡质层,从而引起锯谷盗失水干燥而死。
译  名：
WEIGHT LOSS AND MORTALITY OF STORED GRAIN INSECT PESTS EXPOSED TO INSECTICIDALDIATOMACEOUS EARTH
作  者：
Liu Xiaoqing Cao Yang Li Yanyu Chen Rushui(The Faculty of Food Science and Engineering.Henan University of Technology,Zhengzhou 450052)
关键词：
stored grain insect pest,diatomaceous earth,weight
摘  要：
The effect of a Insecticidal Diatomaceous Earth(IDE),(PuLiangTai~(TM)) made in China on the weight of adult of stored grain insect pests,Sitophilus oryzae(Linnaeus),Rhyzopertha dominica(Fabricius),S.zeamais Motschulsdy,Oryzaephilus surinamensis(Linnaeus) was studied.After the tested adults were exposed to the IDE at 0.5～8g/m~2 on filter paper inside petri dishes for 1 day in 30±1℃and 65%±1%RH,the average loss in weight of them were 0.1,0.4,0.2and 0.2mg per tested insect.After they were cultured for 7 dyas at the same conditions,the average mortality of them were 52%,100%,97%and 100%,respectively.O.surinamensis,exposed to 1 g/m~2IDE(1 day),followed by a removal out and subsequent starvation in 65%±1% relative humidity,atmosphere temperature 25±1℃for 3 days,the average weight of O.surinamensis.(Linnaeus) decreased 0.2 to 0.3 mg per test insect,the mortality was 76%.It came to the conclusion that the weight loss and death of stored grain insect pests is caused by IDE.

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