几种杀虫剂对方翅网蝽的田间药效试验

将高效氯氰菊酯以300和450mL/hm2、阿维菌素以600和900mL/hm2和噻虫嗪以150和300g/hm2均匀喷雾,防治越冬方翅网蝽,结果表明:施药后24h后,高效氯氰菊酯平均防治效果达99.51%;噻虫嗪可湿性粉剂的平均防治效果在98.10%;阿维菌素乳油平均防治效果为71.81%。说明这3种杀虫剂对越冬方翅网蝽均有较好防治效果。

Notes on soil predatory mites: the genus Lasioseius with a newly recorded species and key from China(Acari: Mesostigmata: Blattisociidae)

This paper presents a new record of Lasioseius Berlese in China, Lasioseius japonicas Ehara, with descriptions of the female. Specimens of L. japonicus were collected from the laboratory culture of Athetis lepigone Moschler (Lepidoptera: Noctuidae) in Shandong Agricultural University and deposited in the Laboratory of Systematic and Applied Acarology, Shandong Agricultural University (SDAU). L. japonicus has shown promise of being a biological control agent of Bradysia odoriphaga in laborat ory observations. A key to the females of Lasioseius species from China is provided.

无公害杀虫剂对悬铃木方翅网蝽的田间防治试验

试验筛选出3种防治悬铃木方翅网蝽的无公害杀虫剂。3种药剂对悬铃木方翅网蝽成虫的防治效果分别为：240g·L-1虫螨腈悬浮剂60、90和120g·hm-2的防效在90．88％～96．90％；60g·L-1乙基多杀菌素悬浮剂9、15、21g·hm-2的防效在89．89％～95．41％；10％溴氰虫酰胺可分散油悬浮剂20、40和60g·hm-2的防效在89．95％-95．54％。3种药剂的缺点是价格较高。

Notes on the genus Gaeolaelaps(Acari: Laelapidae) with a newly recorded species from China

The genus Gaeolaelaps Evans & Till from China,including 20 species,is reviewed and an identification key to the Chinese species is provided.G.gillespiei Beaulieu,2009 is reported from China for the first time,with redescription and illustrations.Three new mammal hosts are reported (Anourosorex squamipes,Eothenomys miletus and Rattus steni).