How to treat grape fungal diseases?
The occurrence of grape fungal diseases will seriously affect the quality and yield of grapes, and even lead to the death of spiders. How to treat the fungal disease of grape? Let's take a look at it.
How to treat grape fungal diseases?
1. Downy mildew
Prevention should be given priority to in advance, and once conditions conducive to the occurrence of downy mildew appear, comprehensive prevention and control should be carried out in time. Common protective fungicides are: easy to protect, copper preparation, Dasheng, mancozeb, flumalin, azoles and so on. However, copper preparation and mancozeb are not safe to use before bagging and are easy to cause drug damage, so it is not recommended to use them. The therapeutic agents are enamylmorphine, frosting urea cyanide, cyanofrozole, tebuconazole, Yikuanjing and so on. Protective agents are used in combination with therapeutic agents in prevention and treatment. It can also be treated with 2000 times of picoxystrobin, 2000 times of dimethoxin, 2000 times of flunomide, 1500 times of Bayer aldicarb hydrochloride and so on.
two。 In the early stage, prevention is mainly given priority to, mainly spraying protective fungicides, such as thiram, Pythium, iso-carbamide, etc. If the disease occurs, it can be treated with drugs such as 1000 times of pyrimidinamide, 800times of pyrimidine, 1000 times of isocarbamide, 1500 times of pyrethromycin, 1200 times of pyrimidine and so on.
3. Black pox disease
The grapes are sprayed every 10-15 days from leaf spreading to fruit coloring. Among them, spraying before flowering and 70%-80% of falling flowers is the most important. Pesticides can be selected as 1RV 0.7 Vol 200-240Bordeaux solution, 65% Dysen zinc wettable powder 500600 times, 50% carbendazim wettable powder 1000 times, or 75% chlorothalonil wettable powder 600x. Mancozeb 600 times liquid, 1.5% more than 800 times antimycin has a good effect on the prevention and treatment of black pox.
4. Powdery mildew
Pesticides can be selected as 1RV 0.7 Vol 200-240Bordeaux solution, 65% Dysen zinc wettable powder 500600 times, 50% carbendazim wettable powder 1000 times, or 75% chlorothalonil wettable powder 600x. Mancozeb 600 times liquid, 1.5% more than 800 times antimycin has a good effect on the prevention and treatment of black pox.
Therefore, drugs should be used according to different grape fungal diseases and degrees, so that we can get twice the result with half the effort.
- Prev
How to apply fertilizer to grow vegetables?
Applying fertilizer when growing vegetables can not only promote the growth of vegetables, but also reduce the occurrence of diseases and insect pests to a certain extent. But how to fertilize growing vegetables is a problem worth paying attention to. How to apply fertilizer to grow vegetables? 1. The application of base fertilizer is generally combined with soil preparation.
- Next
Is radish a hair product?
In addition to eating radish, some people use boiling water to make pickles. Is that radish a hair product? Can pregnant women eat radish? First of all, we need to figure out what hair means. Hair matter means that it is nutritious or irritant and can easily cause certain diseases.
Related
- A course of planting techniques and methods on how to grow carrots
- How to plant the latest tulips?
- Is it better to pick tea in the morning or in the afternoon? When is the best time for tea to be picked? what is the third or fifth tea?
- Launch Yuanxiao Happy combination Haocha + Tea Yuan healthy Taste
- Penghu Tourism "Fireworks 20 Parade with You"
- 2022 West Lake Happiness holds "Digital Revitalization Voucher" and draws iphone13 and laptop.
- Banqiao Fuzhou social houses are designed to change start-up combined with police elimination to create a safe and livable environment
- The convenient measure of "mechanical weeding" in Xinbei has been abused and the Agriculture Bureau has imposed heavy penalties on the illegal land consolidation.
- Changgeng University Joins Hands with Four Memory Factories to Rescue Memory Talent Shortage
- The list of Taiwan's top 100 MVP managers is listed by the Director-General of the Farmers' Association of Sanxia District.