Predation by Amblyseius potentillae (Garman) on Panonychus ulmi (Koch) in simple ecosystems (Acarina: Phytoseiidae, Tetranychidae)

J. A. McMurtry and M. van de Vrie

Hilgardia, 1973, vol. 42, issue 2

Abstract: Interactions between the European red mite, Panonychus ulmi (Koch), and the predaceous mite Amblyseius potentillae (Garman) were studied under semicontrolled glasshouse conditions in two types of ecosystems: single leaves, isolated by a sticky barrier at the petioles, and eight-leaf seedlings. Three different starting numbers of the prey (one, four, and eight females, respectively) were established in each type of ecosystem, and a single adult female predator was introduced 10 days later. Predator-free controls were also included.

Keywords: Environmental; Economics; and; Policy (search for similar items in EconPapers)
Date: 1973
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