What to do if powdery mildew appears on SphagnumBecause the flower of the orchid often blooms after the rainy season, whether in the south or north of China, the air humidity after the rainy season is very high, which is the most unfavorable time for the growth of the orchid. If powdery mildew occurs, spray carbendazim or triadimefon once. Carbendazim or triadimefon can both eliminate and prevent powdery mildew. When the air humidity is high, you can spray some even if no symptoms appear. What to do if whiteflies appear on VassilisThe lighting conditions of domesticated potash pine are often not as good as those of wild potash pine, and the ventilation function is also slightly lacking. At this time, the plants are densely packed and easily damaged by whiteflies. You only need to use 1000 times diluted 10% imidacloprid wettable powder or 1500 times diluted 25% cypermethrin wettable powder, spray once every 5-7 days, and spray twice in a row to prevent and control the disease. |
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