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首页> 外文期刊>中国昆虫科学：英文版 >Effect of five diatomaceous earth formulations against Tribolium castaneum (Coleoptera: Tenebrionidae),Oryzaephilus surinamensis (Coleoptera: Silvanidae) and Rhyzopertha dominica (Coleoptera: Bostrychidae)
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Effect of five diatomaceous earth formulations against Tribolium castaneum (Coleoptera: Tenebrionidae),Oryzaephilus surinamensis (Coleoptera: Silvanidae) and Rhyzopertha dominica (Coleoptera: Bostrychidae)

机译：五个硅藻土制剂对cast藜（Coleoptera：Tenebrionidae），Oryzaephilus surinamensis（Coleoptera：Silvanidae）和Rhyzopertha dominica（Coleoptera：Bostrychidae）的影响

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Laboratory bioassays were conducted to determine the effect of food source on the survival of Tribolium castaneum Herbst, Oryzaephilus surinamensis L. and Rhyzopertha dominica F., after exposure to five diatomaceous earth (DE) formulations: Protect-It(R),Insecto(R), Perma-GuardTM, Dryacide(R) and SilicoSec(R). Adults of these species were exposed to DEs at the rate of 0.5 mg/cm2 for 1 day on filter paper inside plastic Petri dishes. After exposure,the initial mortality was counted and live individuals of the three species were held for a week in glass vials containing 50 mg wheat flour, rice and whole wheat, respectively. In the second experiment, after 1 day exposure to DEs, beetles were transferred to Petri dishes without food and held for a week to determine if the presence of food source would decrease the mortality of beetles. Experiments were carried out at 27℃ and 55% RH in the dark. The initial morality in both of the experiments reached 100% for the three species exposed to Protect-It(R) and in the case orR. dominica and O. surinamensis exposed to Dryacide(R). In contrast, low level of mortality (＜ 10%) was observed for T. castaneum exposed to Perma-GuardTM and Insecto(R). The mortality after the post-treatment period on food was decreased for the three species exposed to Perma-GuardTM and in the case of T. castaneum and R. dominica exposed to Insecto(R) and SilicoSec(R). Adults of O. surinamensis were the most susceptible followed by R. dominica and 100% adult mortality was obtained, whereas T. castaneum were the least susceptible beetles to DEs. Protect-It(R) and Dryacide(R) were the most efficient DE formulations and can be used effectively in a stored grain integrated pest management program.
机译：在暴露于五种硅藻土（DE）配方后，进行了实验室生物测定法，以确定食物来源对bol藜Tribium castaneum Herbst，Oryzaephilus surinamensis L.和Rhyzopertha dominica F.存活的影响：Protect-It（R），Insecto（R） ），Perma-GuardTM，Dryacide（R）和SilicoSec（R）。在塑料陪替氏培养皿中的滤纸上，这些物种的成虫以0.5 mg / cm2的速度暴露于DEs中1天。接触后，对最初的死亡率进行计数，并将这三种物种的活个体分别放在装有50 mg小麦粉，大米和全麦的玻璃小瓶中一周。在第二个实验中，暴露于DEs 1天后，将甲虫转移到没有食物的陪替氏培养皿中，并放置一周，以确定食物来源是否会降低甲虫的死亡率。实验在黑暗中于27℃和55％相对湿度下进行。在两个实验中，对于接触Protect-It（R）的三个物种以及orR而言，初始道德达到100％。多米尼克和苏里南O.暴露于Dryacide（R）。相比之下，暴露于Perma-GuardTM和Insecto（R）的锥叶锥虫的死亡率较低（＜10％）。对于三种暴露于Perma-GuardTM的物种，以及对于暴露于Insecto®和SilicoSec®的cast树和甜美杜鹃，在食品后处理后的死亡率均降低了。 surinamensis的成虫是最易感的，其次是多米尼加罗非鱼，成年死亡率为100％，而Castaneum T. Castaneum是对DEs最不敏感的甲虫。 Protect-It和Dryacide是最有效的DE配方，可有效地用于存储谷物的综合虫害管理程序。

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