Spider mite management using UVB in greenhouse


Abstract: Development of acaricide resistance in spider mites is a serious problem, frequently resulting to be a failure in mite control. Spider mites and powdery mildew caused by Sphaerotheca aphanis var. aphanis are the major pests seriously damaging greenhouse strawberry plants in Japan. Recent studies revealed that solar and artificial ultraviolet-B (UVB) radiation exerts deleterious effects on the survival and egg production of spider mites such as Tetranychus urticae. UVB radiation prevents development of the powdery mildew by inducing disease-resistance in strawberry plants. To employ the UVB-induced disease-resistance for control of powdery mildew on greenhouse strawberry, an overhead UVB lamp as physical control equipment has been developed.Extended abstract

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