Control methods of chrysanthemum diseases and insect pests
Chrysanthemums are vulnerable to aphids, red spiders, whitefly, longicorn beetles, leaf rollers, moths, inchworms, grubs, brown spot, black spot, powdery mildew, root rot, leaf blight, rust and other diseases and insect pests. Plant essential oils should be used to control them in time.
After the ① chrysanthemum suffers from leaf spot disease, the diseased leaves must be picked and destroyed in time, and 65% zinc wettable powder or 75% chlorothalonil wettable powder should be sprayed at the same time.
When rust occurs in ② plants, 65% Dysen zinc wettable powder can be sprayed.
When aphid damage occurs in ③, 25% ammonium parathion EC 1000 times or 40% omethoate EC 15003000 times can be sprayed to kill.
When red spider damage occurs in ④, 40% omethoate EC 1000 times or 80% dichlorvos 1000 times can be sprayed to kill.
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