The Effect of Sprays on the Fauna of Apple Trees. I. The Influence of Winter Wash, Captan, and Lime-Sulphur on the Interaction of Populations of Panonychus ulmi (Koch) (Acarina: Tetranychidae) and Its Predator, Blepharidopterus angulatus (Fall.) (Heteroptera: Miridae)

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Abstract
The influence of routine sprays of winter wash (0·1% DNOC + 3·0% petroleum oil), lime-sulphur and captan, on populations of Panonychus ulmi (Koch) and its preda...