Brown leaf scaleSymptoms of pests: The leaves of the plant become lighter in color and develop light spots. When the symptoms are severe, the plant becomes very weak, affecting its growth and losing its ornamental value. Prevention and treatment methods:1. Use red-spotted ladybugs to hunt and control insects with one insect. 2. When the larvae appear in large numbers, spray 1000 times diluted 40% omethoate once a week. anthraxDisease symptoms: In the early stage of the disease, the leaf tips turn black-brown, and then the spots slowly expand until they become one in the later stage. Prevention and treatment methods:1. Strengthen the maintenance of the plants, be careful not to damage the leaves, and spray water on the leaves more often to keep them clean. 2. In summer, spray 1% Bordeaux solution once every 10 days. In addition, in hot seasons, miniature coconut palms may occasionally develop leaf spot and root rot, so attention should be paid to ventilation and soil permeability. When necessary, you can spray thiophanate-methyl and benomyl for prevention and control. |
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