Prevention of apple rot disease in early spring
Rot disease is commonly known as rotten skin disease and stinky skin disease. The trunk and main branch of the main harm result tree are divided into two types: the first is an ulcer type, which mainly occurs on the main stem and the main branch. The bark of the diseased part is red-brown, water-stained, slightly uplifted, and round to long. Round lesions, soft texture, easy to tear, hand depression, out of yellow-brown juice, there is a strong smell of Lees. The second type is the stem blight type, which mainly occurs on branches aged 2-5 years. The edges of the lesions are clear, and the water-stained shapes are not raised. The infected branches quickly lose water and dry, and many small black spots appear on the surface of the lesion. Older orchards are a serious hazard, causing severe tree vigor, severe main branch death, and even dead trees or destroyed gardens. Therefore, the majority of farmers must take comprehensive measures to do a good job of preventing and controlling the early rot of apple rot.
I. Doing well in the early spring to clear the garden
If there is no orchard before the winter, the orchards in the orchard should not be cleaned. The orchards should be cleared of weeds, weeds, paper bags, and picking up stale nuts. In combination with fruit tree pruning, the branches and branches of the pests and pests should be cut off, and the rough and old skins of the trees should be scraped and the branches on the branches should be removed. Put leaves, etc., and bring them out of the park, buried deep or burned, and plugged into rot diseases.
Second, timely cure lesions
The temperature in the early spring has risen and rot bacteria have begun to expand and spread. This is a critical period for spring prevention and control. The current should be carefully examined, found rot diseased plants, the disease immediately scraped the rule, and paste sterilization to prevent recurrence. Commonly-used medicaments include 45% Schnering water 200 times, or 5% bacteriostatic water solution 30-50 times, or 21% peracetic acid water 2-5 times, or chlorhexidine wettable powder 10- 20 times liquid, etc., can also be directly coated with 4% thiophanate-methyl wound. For the diseased garden, spray 45% Schnering agent 400-500 times before germination.
Ceiling lamps,Ceiling lights,LED Ceiling lamp,Outdoor Ceiling light,Indoor Ceiling light
Ningbo Wellway Optoelectronic Technology Co.,Ltd , https://www.wellwayopto.com