Long-term residual efficacy of commerical formulations of 16 pesticides toTyphlodromus pyri Scheuten (Acari: Phytoseiidae) inhabiting commerical vineyards
The long-term residual efficacy of 16 pesticides to the predatory phytoseiid mite,Typhlodromus pyri Scheuten, inhabiting commercial sprayed vineyards in South Moravia, Czchoslovakia, was evaluated in laboratory bioassays. Omethoate, chlorpyrifos-methyl and esfenvalerate were assessed as harmful and should not be sprayed. Mancozeb-efosite-Al mixture, diazinon, dicofol, bromopropylate, azinphos-ethyl and phosmet were assessed as moderately harmful. Fenitrothion, phosalone and mancozeb were assessed as slightly harmful and some of them had delayed detrimental effect on the predatory mites. These pesticides can be used only cautiously in IPM programs. Sulphur, penconazole, trimorfamid and endosulfan were assessed as harmless and can be recommended for vineyards withT. pyri.
Role of the predatory mites Amblyseius aberrans (Oud.), Typhlodromus pyri Scheuten and Amblyseius andersoni (Chant) (Acari, Phytoseiidae) in vineyards
The effects of the release of phytoseiid mites Amblyseius aberrâns (Oud.), Typhlodromus pyri Scheuten and Amblyseius andersoni (Chant) on spider mite populations in northern Italian vineyards are here reported.
The role of Orius vicinus Ribaut (Heteroptera; Anthocoridae) as a predator of phytophagous and predacious mites in a Dutch orchard
Rate of development and reproduction of Orius vicinus was measured on different sorts of animal prey and on Vicia fabae pollen. Several phytophagous and predacious mites proved to be good prey species for the predator, but some small insects, such as Typhlocyba sp. and Aphis pomi were less suitable. Reproduction on a diet of Vicia fabae pollen was distinctly lower than on animal prey.