ReleasingAmblyseius spp. [Acarina: Phytoseiidae] to controlThrips tabaci [Thysanoptera: Thripidae] on cabbage |
| |
Authors: | C W Hoy C S Glenister |
| |
Institution: | (1) Dept. of Entomology, Ohio State University Ohio Agricultural Research and Development Center, Wooster, Ohio;(2) IPM Laboratories, Inc., Locke, New York |
| |
Abstract: | Two species of predaceous mites,Amblyseius barkeri (Hughes) =A. mckenziei
Schuster & Pritchard] andA. cucumeris (Oudemans) Acarina: Phytoseiidae] were evaluated as potential biological control agents forThrips tabaci Lindeman Thysanoptera: Thripidae] on cabbage.A. barkeri colonized cabbage heads in preliminary trials. Field releases of different numbers of mites per plant during 1987 showed
thatA. barkeri reduced the number of thrips in cabbage heads at harvest, and the reduction was proportional to the number of mites released,
but thrips damage was unaffected. ReleasingA. cucumeris at different times during 1988, but releasing the same number of mites each time, we found that earlier releases resulted
in fewer thrips and less damage at harvest; these relationships were not present, however, in plots treated with pyrethroid
insecticides. We conclude that inoculative release ofAmblyseius spp. is a potentially useful thrips management strategy, but improvements in release timing and strategy will be required
to provide commercially acceptable control.
|
| |
Keywords: | Amblyseius barkeri Amblyseius cucumeris Thrips tabaci cabbage biological control |
本文献已被 SpringerLink 等数据库收录! |
|