Properly used houseplant pesticides are dangerous when used on the wrong plant Malathion is injurious to crassulas jade plants poinsettias asparagus ferns maidenhair ferns and gloxinias

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Properly used houseplant pesticides are dangerous when used on the wrong plant. Malathion is injurious to crassulas (jade plants), poinsettias, asparagus ferns, maidenhair ferns and gloxinias.