Effect of predators on the occurrence of the kanzawa spider mite, Tetranychus kanzawai Kishida (Acari: Tetranychidae), on feral plants, Clerodendrum trichotomum and Akebia quinata.
Effect of predators on the occurrence of the kanzawa spider mite, Tetranychus kanzawai Kishida (Acari: Tetranychidae), on feral plants, Clerodendrum trichotomum and Akebia quinata.
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捕食者对神泽叶螨、Tetranychus kanzawai Kishida（螨虫：叶螨科）、野生植物 Clerodendrum trichotomum 和木通发生的影响。
DOI：
10.1303/jjaez.2000.235
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发表时间：
2000
影响因子：
0.5
通讯作者：
M. Morishita
中科院分区：
文献类型：
--
作者：
M. Morishita
1993年至1994年间，对日本本州西南部和歌山县豌豆-西瓜田的边境植被、三叶木通和木通中的神泽岸田叶螨及其天敌的季节性发生情况进行了调查。三口螟上的T. kanzawai种群密度有两个高峰：一是4-5月，二是11月。但夏季密度较低，捕食性螨类（主要是Amblyseius eharai和A. sojaensis）出现。夏季和秋季，氯氰菊酯的施用引起了三歧螨上的T. kanzawai 的死灰复燃，这表明捕食者抑制了螨类的数量。当 T. trichotomum 和 A. quinata 的密度较高时，Oligota kashmirica benefica 和 cecidomyiid、Feltiella sp. 和 Scolothrips takahashii 是 T. kanzawai 的主要捕食物种。
Seasonal occurrence of Tetranychus kanzawai Kishida and its predators in the border vegetation, Clerodendrum trichotomum and Akebia quinata, of pea-watermelon fields were investigated in Wakayama Prefecture, southwestern Honshu, Japan during 1993-1994. There were two peaks in the population density of T. kanzawai on C. trichotomum: one was in April-May and the other in November. However, the density was low in summer when predacious mites (mainly Amblyseius eharai and A. sojaensis) occurred. The application of cypermethrin caused a resurgence in T. kanzawai on C. trichotomum during summer and autumn, showing that the predators had suppressed the mite population. Oligota kashmirica benefica and cecidomyiid, Feltiella sp., and Scolothrips takahashii were the predominant predator species of T. kanzawai when its density was high on C. trichotomum and A. quinata.