Prevention of fruit rot in July and August is the key

Why is the incidence of rot disease increasing year by year? It is because farmers only cure lice, not prevent them. Huang Lili, deputy dean of the College of Horticulture, Northwest Agriculture and Forestry University, led the scientific and educational team in the orchards of Shaanxi, Gansu, Shanxi, etc. After 11 years of investigation and research, it was found that the rot pathogen was far more active in the interior of the tree than in the exterior of the tree. A dark spot on the skin is a conidium; conidia germinate and infiltrate in 16 hours, and is infiltrated through invasion of wounds, lenticels, bud scales, etc. The rot bacterium has the ability to degrade tree cells strongly, 7- The symptoms of bark can be seen in 10 days. The peak period of conidium transmission in orchards started from February to July, and the infection period from November to March of the following year. Drying in July-August is the best period to prevent rot, and it can completely control the production of rot bacteria for three years.

The Plant Protection Station of Shaanxi Province carried out demonstration application of green fruit control technology in Luochuan, Baishui and Bin County orchards in Shaanxi Province. In July, it was dried with 1.8% Bicon (acetamidine acetate) agent 50 times, in November. The garden was sprayed with 300 times spray and the control effect reached 97.8%. July-August is the best period for prevention of rot disease, but also the high temperature season, the dry labor cost is far greater than the cost of the drug, can also be used wet spray method, the spray nozzle nozzle gasket hole large, spray liquid into a column, Spraying from the bottom of the fruit tree spray, spray evenly, the tree is all wet. Hope that the majority of farmers in the 7-8 months, dry or spray dry rot control.

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