Peach blossom disease prevention and control

Peach blossom punching disease

It mainly harms leaves, but also branches and fruits.

1. Perforation disease caused by bacteria is called bacterial perforation disease.

2. It is a fungal perforation disease caused by fungi.

Warm and rainy seasons are conducive to the occurrence of peach bacterial punchhole disease. Peach plants with weak vigor, poor drainage, and poor ventilation and light transmission are susceptible to the disease. Strengthening management, increasing basal fertilizer application, improving soil, enhancing tree vigor, and improving disease resistance are the main methods for preventing and controlling peach perforation disease.

At the same time, pay attention to cutting off diseased and damaged parts to reduce reinfection by pathogens. Spray 3-5° Baume lime sulfur mixture before germination in early spring to control pests. During the growing season, spray 800-1000 times of 70% methyl thiophanate wettable powder. For bacterial perforation, bactericidal drugs such as streptomycin, oxytetracycline, and jinggangmycin can be used.

Peach Anthracnose

The main damage is to the fruit, and the leaves and new shoots can also be affected. Peach blossoms are more likely to get sick if the temperature is low and there is a lot of rain when they are in bloom. The main method of prevention and control is to eliminate diseased shoots, dead branches, and dead fruits and reduce the source of overwintering fungi. You can also spray Baume 5° lime sulfur mixture before flowering. After flowering, you can spray 600 times of 50% thiophanate-methyl or 800-1000 times of 70% thiophanate-methyl.

Peach gummosis

It mainly harms branches and trunks, and is more serious to older plants. Strengthening peach tree management, enhancing tree vigor, improving resistance, timely and effectively controlling trunk pests, and reducing unnecessary mechanical damage are the main methods of prevention and control. Appropriate pesticides and fungicides can also be selected according to specific circumstances.

Peach leaf curl

It mainly occurs in the early spring when the temperature is low and the rain is heavy. To eliminate overwintering pathogens, the main prevention and control method is to spray 500 times of 70% mancozeb or 1000 times of 70% thiophanate-methyl when the petals turn red.

Characteristics: Peach blossom is a deciduous tree. The leaves are elliptical-lanceolate, coarsely serrated on the edges, glabrous, and have petioles 1-1.5CM long. The flowers are solitary, bloom before the leaves, are almost sessile, mostly pink, and have 5 petals. The flowering period is March-April, and the fruit ripens in June-September. Variants include deep red, crimson, pure white, and a mixture of red and white, as well as double and triple petals.