A new method for the release of Amblyseius andersoni (Acari: Phytoseiidae) in young apple orchards

A new method for the release of Amblyseius andersoni (Acari: Phytoseiidae) in young apple orchards

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The use of phytoseiid species in biological plant protection is widespread.However, the techniques used to release them differ.The possible release Preamplifiers of Amblyseius andersoni (Chant, 1959) using a new method was tested.High numbers of this mite overwinter in the ground litter in Hungarian orchards.

By transferring such ground litter to plots in young orchards, the population density was found to be significantly increased in the release compared to control plots; A.andersoni became the dominant phytoseiid species in the new orchard.Due to the rate at which it spreads, this species was also recorded in the control plots towards the end of the growing season (Aug., Sept.

), at which Elbow Pads time there was no significant difference in the numbers of this species in the treated and control plots.In the winter following release, A.andersoni was found in the ground litter of the orchard.