Preliminary observations on the population development of anystid and free-living mesostigmatic mites in a cereal field in Southern England
✍ Scribed by E. M. El Banhawy; N. Carter; I. R. Wynne
- Publisher
- Springer Netherlands
- Year
- 1993
- Tongue
- English
- Weight
- 471 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0168-8162
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✦ Synopsis
The effect of manipulating cereal aphid population development, by either adding aphids or spraying with an aphid-specific insecticide, on the predatory mite fauna was investigated. Populations of the anystid mite, Anystis baccarum (L.), were very small until late June when numbers built up rapidly at the time of the aphid population decline. There was however, no signilicant relationship between aphids and numbers of mites over the whole season. Preliminary eleetrophoretic analysis of two enzymes in the gut of anystid mites indicated that they may have been feeding on thrips, Limothrips cerealium Haliday. The free-living soil Mesostigmata had two population peaks, each related, the first tx)sitively and the second negatively to aphid populations.