The Prevention and Control of Grape Brown Spot in Greenhouse

1. Strengthen orchard management. After autumn, the deciduous orchards of the orchard are completely removed, concentrated and burned or buried in depth, and the general trees are sprayed and sterilized to reduce or eliminate the sources of overwintering. During grape growth, pay attention to drainage in the orchard, timely topping, cutting sub-tips, strengthen ventilation and light transmission, reduce orchard humidity, and increase the organic fertilizer properly to promote the growth of the tree vigor, improve the disease resistance of plants, and reduce disease happened.

2. Insist on the use of protective agents before the onset of disease prevention. Such as Bordeaux fluid, mancozeb, etc., and timely spraying of the new high-fat membrane 800 times, can prevent leaf virus infection, so that the lush foliage, photosynthetic product accumulation and enhanced directional transport capacity.

3.Discover the lesions in time with the epidemic spot 3000 times liquid plus a new high-fat membrane 800 times the treatment, when the disease is heavy with good Lectra 3000 times plus a new high-fat membrane 800 times spray, continuous use 2 or 3 times, focus on the spray The lower blade works well.

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