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Identification of pathogenic strains of entomopathogenic nematodes and fungi for wireworm control

机译:鉴定用于控制线虫的致病性线虫和真菌的致病菌株

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Wireworms, the subterranean larval stage of click beetles (Coleoptera: Elateridae), are an important pests of potatoes throughout the world. Laboratory assays were done to identify virulent strains of entomopathogenic nematodes (EPN) and fungi against wireworm, Agriotes lineatus (L.) (Coleoptera: Elateridae). A fungus, Metarhizium anisopliae (Metsch), Sorokin strains V1002 and LRC181A, caused 90 and 100% mortality of A. lineatus, 3 weeks post-inoculation. Other M. anisopliae strains caused mortality ranging between 10 and 70%, whereas strains of Beauveria bassiana (Balsamo) Vuillemin and Paecilomyces fumosoroseus (Wize) were non-pathogenic to A. lineatus. The EPN, Heterorhabditis bacteriophora Poinar strain UWS1, caused significantly greater mortality (67%) to A. lineatus than other EPN species (0-50%), 3 weeks post-inoculation. The organophosphate insecticide Mocap 10G gave 100% control. The present results suggest that M. anisopliae strain V1002 has considerable potential for the control of the wireworm tested.
机译:线虫是click虫的地下幼虫阶段(鞘翅目:Elateridae),是全世界马铃薯的重要害虫。进行实验室测定以鉴定针对线虫,线虫(L。)(鞘翅目:Elateridae)的致病性线虫(EPN)和真菌的强毒株。接种后3周,一种真菌,Metrorhizium anisopliae(Metsch),Sorokin菌株V1002和LRC181A导致线虫的死亡率为90%和100%。其他米氏分枝杆菌菌株引起的死亡率在10%至70%之间,而球孢白僵菌(Balsver)Vuillemin和烟曲拟青霉(Wize)的菌株对A. lineatus无致病性。接种后3周,EPN细菌性异形疱疹性Poinar菌株UWS1导致线虫的死亡率(67%)比其他EPN物种(0-50%)大得多。有机磷酸酯杀虫剂Mocap 10G提供了100%的控制。目前的结果表明,分离支原体菌株V1002具有控制被测tested的巨大潜力。

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