Insecticidal soap, malathion, or spinosad, which are among the compounds registered for use against this pest in Connecticut, may control thrips. Some populations of western flower thrips are resistant to all insecticides registered for use by homeowners. Consult the label for dosage rates and safety precautions. Cyclamen mite, Phytonemus pallidus . This translucent, microscopic mite often infests the new leaf and blossom buds, and can proliferate on spent blossoms.
Characteristic injury includes dwarfed, thickened and wrinkled leaves.
On azalea, dahlia, and other plants with stems, the distance between internodes becomes drastically shortened. Infested plants do not bloom, or blossoms may be misshapen. Effective restricted use materials are abamectin, dicofol, and endosulfan. European corn borer, Ostrinia nubilalis. The second generation of this pest sometimes lays its eggs on chrysanthemum.