In the summer, the strawberries are in the stage of stolons. They are prone to powdery mildew, brown spot, and leaf spot in rainy weather. The moist soil environment is also conducive to earthworms and harms the root system. In case of dry weather, spider mites, aphids, and other pests are easy. Re-issued, early detection and early prevention and control of production. Agricultural control. The diseased leaf is burned in time and the whole plant is removed from the serious diseased plant. Clean the pastoral area, remove the old leaves and yellow leaves, and take them out of the field. Non-raising seedling fields should be timely removed stems, reduce nutrient consumption, enhance plant resistance to disease. Nursery field to control the amount of nitrogen fertilizer, increase phosphorus and potassium fertilizer to prevent plant growth. When it is properly watered in case of drought, the water in the field will be ruled out in time. Chemical control. Select sunny morning spray, the front and back of the blade should be sprayed. Disease prevention and control can be sprayed with 25% triadimefon wettable powder 3000 times solution or 70% thiophanate-methyl wettable powder 1000 times solution. For the control of spider mites and aphids, spray 20% fenvalerate EC 3000 times. In order to find out the harm of cockroach, 90% crystal trichlorfon 30 times liquid 150 ml can be used. Add 5 kg of coixine and mix it to make bait and sprinkle it in the cockroach.
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Strawberry should pay attention to pests and diseases