After winter, a large number of pathogen spores and harmful eggs are hidden in grape vines, frame materials and soil for wintering, which brings latent damage to the occurrence of diseases and insect pests in the coming year. Grapevine Garden can effectively reduce the number of bacteria and reduce the number of pests. Especially in the park where the pests and diseases are particularly serious in the past, more attention needs to be paid. Some people say that the grape clearing garden is not just a fight, it is easy to master. So, do you know the optimal temperature of the drug? What kind of medicine is needed to clear the garden, only use stone sulfur mixture? How much does the medicine need to spray to achieve the Qingyuan effect? Fully understand the importance of grape clearing As we all know, the clearing of the grape after harvest is the key operation of the outbreak of pests and diseases in the coming year. After the grapes are harvested, the weather turns cold, the vines slowly go to sleep, and the germs are hiding in the “safe haven†to prepare for the winter, waiting for the next year to continue to harm. Why do the pests and diseases of the year always come from a steady stream, and it is impossible to prevent them? This is probably the negligence of everyone working on the Qingyuan after the grape harvest! Grape Clearing Garden is the source of the development of pathogens and pests in the previous year to reduce the pest index and reduce the difficulty of controlling pests and diseases in the next year. 2 Understand the best control temperature of Qingyuan Pharmacy The purpose of the Qingyuan is to eradicate the bacteria and pests of wintering, but the use of chemicals is greatly affected by the climate, and the temperature directly affects the efficacy of the drug. The best control temperature is above 18-20 °C, and no more than 25 degrees is the best time to use the drug. The temperature is low, the pests and germs are not active, the medicinal properties are not ideal, and the control effect is also reduced. Therefore, the Qingyuan must grasp the best time for spraying, preferably the windless weather with moderate temperature after the rain. 3 Recommend the medicine used in the Qingyuan In general, most of the vineyards commonly used Qingyuan drugs are: 1, stone sulfur mixture; 2, tebuconazole + chlorpyrifos. If this year's pests and diseases occur more seriously, it is recommended to use targeted drug control programs to specifically kill residual pathogens. For example, after picking the grapes, the pyrethroid can be used with pyraclostrobin + tebuconazole + chlorpyrifos high chloride + foliar fertilizer; or benzpropiazole + alginic acid ester + bifenthrin / acetamiprid + leaf leaven. After the leaves, before the germination, you can use the spring thunder king copper, or use copper hydroxide to clear the garden. 4 Master the technical skills of Qingyuan During the clearing operation, all the dead leaves and weeds of the diseased leaves in the garden are cleaned out of the vineyard, buried or burned, and then sprayed with drugs. At the same time, the spray must be sufficient, meticulous, and leave no dead ends. The amount of each use per mu should reach more than 100 pounds. 5 Final supplement For the management of extensive, last year's severe pests and diseases, you can choose to use the medicine twice, once in autumn and spring. Spring is as early as possible, spring is delayed as much as possible, and spring clearing is the focus. The germination and translucent period is a general application period, that is, a few days after the pompoms are short, and it is not ideal too early or too late. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Tiamulin Fumarate,Tiamulin Swine,Tiamulin Chicken,Tiamulin For Animal Use Shandong Shengli Bioengineering Co., Ltd , https://www.shenglipharm.com
Grape Clearing Garden is not as simple as fighting drugs. More importantly, these are