C Siongers

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The influence of the biological insecticide Botanigard (Beauveria bassiana) on different developmental stages of the greenhouse whitefly (Trialeurodes vaporariorum) has been tested and compared with the influence of Preferal (Paecilomyces fumosoroseus), also a biological product. Six experiments were set up to test the two products on eggs, which were four(More)
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