What are the key three times after the grapes have been spent?
Grape is a kind of fruit tree with more pests and diseases. Especially with the arrival of summer, the temperature rises rapidly and the rainfall is sufficient. A large number of diseases and insect pests are concentrated and erupted. At present, the northern open-air grapes end flowering one after another, and the three drugs after the decapitation, the young fruit period, and the bagging are crucial, which are related to the quality and yield of the grapes. How should the specific drug be used? Introduction to major pests and diseases Downy mildew: not only damage the young leaves of grapes, but also directly on the fruit, many farmers for this reason, last year suffered a major loss. After harming the fruit, the fruit shrank, shrunk, and deformed, and the shape of the fruit would disappear, causing the grape to lose its commercial character. From the time of Xiehua to the bagging, there is an occurrence, especially when there is continuous rainfall, it is easy to break out. Blackpox disease: Harmful to the green young part of the grape, with the most serious damage to the leaves, veins, cobs, and fruits. With the advent of hot and rainy weather, the disease is more likely to occur. Anthracnose: Most of the time it broke out when the grape turns color, and a large part of the reason is that it has been infested during the young fruit period. Therefore, care should be taken during the young fruit period. Botrytis cinerea: It mainly damages the corolla, inflorescences, and fruits. In general, there are two peaks in the incidence of gray mold, one is from flowering to young fruit, and the other is from fruit coloring to maturity. If the previous prevention work is not in place, it can easily cause a late "urine bag." Hummer: One of the main pests after grape blossoms, by sucking the skin to form hemp fruit, affect the fruit. The young fruit was not discolored when it was killed, and the victim lost water and shrank on the second day to form a small dark spot. Leptospirosis: 4 to 5 generations a year, the grapes can be harmed after germination, sucking on young leaves, causing the leaves to be hollow. If the young fruit is harmed by adults or nymphs, the young fruit will appear. As the young fruit grows, the fruit surface will form small dark spots on the wound, which will seriously affect the fruit. Weevil A: One generation occurs in one year and begins to harm in the first half of May, damaging the leaves and inflorescences, causing nicks and holes. Scarab: One generation occurs in one year and begins to be harmed in early May. The beetle scarab mainly eats leaves and the white beetle mainly eats fruit. Onset time and medication reference Period: Xiehua 80% Object of control: Downy mildew, black pox, anthrax, thrips, elephant armor, beetle, etc. Recommended Protocol: Pyrazolone morpholine + Iprodione + Difenoconazole + Imidacloprid + Calcium Fertilizer Period: Young bean size Targets for prevention and treatment: Downy mildew, black pox, anthrax, ulcer disease, thrips, elephant armor, beetles, etc. Recommended solution: Prochloraz + imazalil + enoic acid urea cyanide + pyrethroid insecticide + calcium fertilizer Period: young fruit expansion before bagging Targets for prevention and control: Downy mildew, black pox, anthrax, canker, gray mold, thrips, elephant armor, beetles, etc. Recommended Program: Pyrazolone Zinc + Boscalidamide Pyritidil + Cyazofamidazole Precautions 1, after Xie Hua to the bag before the general medication 3 to 4 times, if the rain is relatively large during this period, should be combined with the occurrence of garden pests and diseases to increase the frequency of drugs. 2. The grape young fruit period is more sensitive to the emulsifying fungicides of the emulsifiable oil type and is easy to stimulate the fruit surface. It is recommended not to use the emulsifiable oil products during this period. Reducing the use of triazole bactericides, although effective, will inhibit grape growth. In addition, avoid using powder before bagging to avoid residual drug spot formation. 3, 1 ~ 2 weeks after flowering is the best period of grape calcium supplementation, it is recommended to 2 ~ 3 times of calcium supplementation, calcium supplement at this time to reduce late cracking, burning a great role. 4, fight drugs to be prevention-based, before the onset of the main agent to prevent the disease, after the onset of prevention + treatment of the main agent, long duration, save time and labor. 5, fight drugs combined with their garden situation, do not blindly increase the dose, not to waste financial resources, but also prone to injury. Sweet Gummies,OEM Gummy Candy,Gummy Food Candy,Popular Gummy Candy Montreal Shantou Food Co., Ltd , https://www.montrealsnack.com