whitefly造句
(31) Application: it is a systemic insecticide, with both contact and stomach action against sucking mouthparts pests such as plant hoppers, aphids, leafhoppers, thrips whitefly, ect.
(32) Under the selective condition, the rank of preference of biotype B whitefly to different crops was water melon, cucumber, cruciferous crops, tomato, pepper and heading fennel.
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