Apple tree rot disease is the most important disease causing the destruction of gardens. It is known by fruit growers as an apple tree cancer. Pathogens are overwintering in the bark of the disease or the xylem of the diseased locust. The diseased spot produces conidia in the early spring. The spores spread with the wind and rain, and from the cut saw, frozen wounds, diseased insects, etc., or leaves with the dead tissue, and fruit after germination. Taiwan and stalk marks, and the invading skin layer invade the tree body, invade and then latent, showing peak incidence in spring and autumn. The rot bacterium is a weak parasitic fungus. The occurrence of the disease is closely related to the tree vigor. The tree vigor is strong, the bacteria can be lurking for a long period of time, and the tree vigor is rapidly morbid.
Comprehensive Prevention Strategies and Techniques of Apple Tree Rot Disease
Prevention and treatment of apple tree rot disease should adopt the comprehensive prevention and control measures centered on the cultivation of tree vigor, timely protection of wounds, and reduction of tree-carrying bacteria as the main preventive measures, and the application of disease-smearing agent as a supplementary means. The rot disease control techniques are summarized as follows: one application, two applications, three injections, and four coatings (abbreviated as “1234 methodâ€). One application: one organic fertilizer is applied after the fruit is harvested to cultivate tree vigor; the second is scraping: the rot disease spot is scraped twice in the early spring and late autumn; three sprays: the spring is used to clean the garden, post-flower and post-harvest spraying to prevent infestation; Coating: Applicator protects the wound after trimming, and the dry period during the growth period promotes the falling off of the skin layer. The trunk is painted with white antifreeze before entering the winter. After the curettage, the medicine is applied to prevent recurrence.
Dormant drug protection
The protection of cut wounds and kerfs of wound sprays is the main part of apple tree rot. In the early spring, the wounds caused by pruning and all the uncut healing saws and insect wounds of the previous year must be protected by applying the medicine immediately after pruning. Pharmacy should choose 3% humic acid sodium solution or 5% bacteriostatic water solution 50 times or 1.5% thiopenton cream, in addition to the wound coating, but also in the whole garden spray 1 chemical agent to reduce the orchard Amount, to prevent conidial infection, the agent can be used 25% Propiconazole EC 600 times or 45% Schnering agent 400 times or 1.5% TEM water emulsion 500 times or 2.12% copper humate 100 times liquid. The spraying required to be completed before sprouting.
Main trunk applicator trunk is one of the main sites of rot disease, and it is also the place where the skin layer and the surface ulcer occur. After scraping the rot in early spring, it is recommended to apply 60% organic potassium humate 30 times to brush the main stem and the main branch base. It is beneficial to eradicate rot bacteria, provide nutrients for trees, and enhance disease resistance.
Germination prevention
Scratch treatment, in the early spring and autumn found rot lesions to cure in time. Requirements: The disease has been to the xylem lesions, scraped into an ellipse, standing, according to the thickness of the stem, requires the scraping surface beyond the lesions and health junctions, transverse scraping 1cm, longitudinal scraping 3cm; on the disease only in the phloem The lesions can be scraped off the discoloured bast tissue. Then apply medicine. The applied agent may be selected from 1.5% thiflubene ointment or "blue leek" artificial bark ointment or 3% sodium humate solution, or 5% bacteriostatic water solution 50 times.
Postprandial medication
From March to May, it is the main period of contagious transmission of spores of rot rot. Conidia are produced and propagated on the condition of rainfall. Therefore, on the basis of spraying protection of tree body during dormancy period, it should be combined with other diseases after flowering and should be combined. Rainfall, once again the entire garden medication. The agent can be selected from 10% difenoconazole water dispersible granules 3000 times or 70% diphosphoaluminum manganese zinc wettable powder 1000 times.
Main apple coating during growing period
June is the period when the tree appears to have a skin layer, and it is also a period of surface ulceration. Use 60% organic potassium (sodium) humic acid (sodium) 30-40 times, or 2.12% copper humate 5 to 10 times to brush the main stem and the main branch base to promote the shedding of the skin and reduce the formation of surface ulcers .
Apples receive medication after harvesting
After the apple was harvested, it coincided with the second peak of rot disease. Therefore, a chemical should be sprayed on the entire tree 15-20 days after harvest to protect the natural wounds such as rot, leaf marks and stalk marks. Pharmacy should choose 30% basic copper chloride (copper oxychloride, copper) suspension 600 times, or 2000 times 25% propiconazole EC.
Classification of kitchen condiments;Jining hongshan trading co., LTD. Is one of the companies specialized in processing and exporting agricultural products and spices.We have modern and spacious warehouse, which ensures the safe storage of a large number of products, so we can supply all year round. The kitchen seasoning includes Sichuan Pepper, cinnamon and Dried Fennel, which are commonly used seasoning, and are indispensable for cooking fish stew and marinating food.Reasonable price, timely delivery and flexible payment.
Kitchen Condiment,Acrylic Kitchen Condiment,Pepper Sauce,Cinnamon Powder
Jining Sunagro Trade Co., Ltd. , https://www.sunagro-food.com