Take effective measures to control strawberry gray mold

When planting strawberries, gray mold occurs frequently, directly affecting flowers and fruits, which has a great impact on yield and quality. For this reason, the following measures can be taken for prevention and treatment.

First, agricultural control. 1. Remove dead leaves and dead leaves. In the early stage of the disease, the diseased inflorescence is removed, the diseased fruit is removed, and the bacterial source should be removed in time and carefully, and the diseased leaves, diseased flowers, and diseased fruits should be removed in time, placed in plastic bags, and properly disposed of outdoors. 2, reasonable close planting, balanced fertilization, proper control of watering, to prevent plant growth and excessive humidity in the park. 3. Cover the ground with plastic film or firewood to avoid direct contact with the soil. 4, using high mulch film cover or drip irrigation water-saving cultivation. 5, pre-flowering, flowering and fruiting period and spraying before and after spraying, combined with spraying of fruit and fruit, improve the fruit set rate of strawberry circulation, promote fruit development, focus on flower preservation and fruit conservation, coordinate nutrient balance, prevent strawberry malformation, and make The strawberry is of high quality and the amount of air is increased after watering. 6. Before transplanting or nursery for soil preparation, use 65% methicillin WP 400 times solution, or 50% moldy WP 600 times solution, or 50% carbendazim WP 400 times solution, or 45%. Tekdo suspoemulsion 600 times solution, spray disinfection on the surface of the film, soil and walls, and with the application of new high-fat film to enhance the efficacy.

Second, the chemical control: starting from the inflorescence, use 200 times the same amount of Bordeaux mixture, 50% dexamethasone 500 times solution, 50% carbendazim 600 times solution, 75% chlorothalonil 600 to 800 times solution, 50% Speed ​​Keling or 70% methyl thiophanate 800 ~ 1000 times liquid, 10% oxytetracycline wet powder 100 ~ 150 grams / acre water 75 kg, 50% phlegm wettable powder 100 ~ 135 g / mu + 75 kg of water and other chemicals, spray once every 7 to 10 days, a total of 3 to 4 times; control greenhouse or greenhouse gray mold, can be used fumigation fumigation, 0.1 grams per cubic meter.