CAJ | 학술논문

麦蒲螨[P yemotes tritici (LaGreze-Fossat et Montagne)]是黑沙蒿主要钻蛀性害虫沙蒿大粒象(Adosomus sp.)和沙蒿尖翅吉丁(Sphenoptera sp.)的重要寄生性天敌。为明确麦蒲螨的寄主选择行为，本文分别研究了麦蒲螨对黑沙蒿4种钻蛀性害虫、同一寄主不同发育阶段、受害黑沙蒿根部以及害虫虫粪的选择行为。结果表明：麦蒲螨对4种害虫以及同种害虫不同龄期幼虫有明显的选择现象，其中，对沙蒿尖翅吉丁的趋向性相对最高，沙蒿蛀茎蛾次之，沙蒿大粒象相对较小；相对于寄主的初孵幼虫，麦蒲螨对其老熟幼虫和蛹的趋向性更为强烈；不同种类害虫幼虫对麦蒲螨的寄主定位起到重要作用，而不同种害虫的虫粪对麦蒲螨的寄主选择行为也有一定的作用。相比受害黑沙蒿而言，健康黑沙蒿对麦蒲螨有明显的驱避现象。研究结果为揭示麦蒲螨对黑沙蒿不同钻蛀性害虫的寄主偏好性，利用麦蒲螨进行黑沙蒿主要害虫的生物防治提供了理论依据。
맥포만[P yemotes tritici (LaGreze-Fossat et Montagne)]시흑사호주요찬주성해충사호대립상(Adosomus sp.)화사호첨시길정(Sphenoptera sp.)적중요기생성천활。위명학맥포만적기주선택행위，본문분별연구료맥포만대흑사호4충찬주성해충、동일기주불동발육계단、수해흑사호근부이급해충충분적선택행위。결과표명：맥포만대4충해충이급동충해충불동령기유충유명현적선택현상，기중，대사호첨시길정적추향성상대최고，사호주경아차지，사호대립상상대교소；상대우기주적초부유충，맥포만대기노숙유충화용적추향성경위강렬；불동충류해충유충대맥포만적기주정위기도중요작용，이불동충해충적충분대맥포만적기주선택행위야유일정적작용。상비수해흑사호이언，건강흑사호대맥포만유명현적구피현상。연구결과위게시맥포만대흑사호불동찬주성해충적기주편호성，이용맥포만진행흑사호주요해충적생물방치제공료이론의거。
Pyemotes tritici (Newport)is one of the important parasitoids of the woodborers such as Adosopius sp. and Sphenoptera sp.associated with Artemisia ordosica Krasch.The host selection behavior of P .tritici to 4 spe-cies of Artemisia ordosica woodborers,different larval stages,the roots of damaged A .ordosica and frass of Arte-misia ordosica woodborers was studied.The results showed that there was an obvious selection behavior of P .triti-ci to different types and ages of pest larvae.P .tritici preferred to parasitize Sphenoptera sp.,and it had a stron-ger tendency to parasitize mature larvae and pupae than newly hatched larvae.The types of pest larvae played an important role in the host location behavior of P .tritici ,and frass of different species of woodborers also had a role on the host selection of P .tritici .Compared with the victims of A .ordosica ,P .tritici obviously avoided the healthy A .ordosica .The results can provide a theoretical support for studying host selection behavior of 4 species of Artemisia woodborers and biocontrol applications of P .tritici .