A Detailed Guide to the Latest Methods for Chrysanthemum Pest and Disease Control

Chrysanthemums are susceptible to aphids, red spider mites, whiteflies, longhorn beetles, leaf-roller moths, stinging moths, inchworms, white grubs and other pests, as well as brown spot disease, black spot disease, powdery mildew, root rot, leaf blight, rust disease and other diseases, and should be promptly controlled with plant essential oils.

① After a chrysanthemum contracts leaf spot disease, be sure to promptly pick off and destroy the diseased leaves, and at the same time spray with a 500-fold dilution of 65% zineb wettable powder or a 500-fold dilution of 75% chlorothalonil wettable powder to treat it.

② When rust disease occurs on the plant, spraying with a 500-fold dilution of 65% zineb wettable powder is sufficient.

③ When aphid damage occurs, you can spray a 1000-fold dilution of 25% ammonium sulfophos emulsifiable concentrate or a 1500-3000-fold dilution of 40% omethoate emulsifiable concentrate to kill them.

④ When red spider mite damage occurs, you can spray a 1000-fold dilution of 40% omethoate emulsifiable concentrate or a 1000-fold dilution of 80% dichlorvos to kill them.