High temperatures are the season in which citrus rust spiders are severely developed. Rust spiders, also known as rust mites, can cause a large number of black fruit, and seriously affect the price of the product. The prevention of rust spiders is an important task for citrus management. Let's take a look at how to prevent it. Rust spiders occur 10 to 30 generations a year, with an average of 20 generations. Guangdong, Hainan, and Guangxi have occurred for more than 25 generations. There has been no overwintering period and overlapping generations. In winter, when the temperature rises above 15 degrees, it begins to feed and eats. In March and April, it damages the spring shoots. In May and June, the fruit damage begins, and the insect population increases rapidly. July and August are the year. The peak of the insect population, from August to October, is the peak period. At this time, if the temperature is appropriate (the average monthly temperature is 25 to 27 degrees, the relative humidity is about 85%), it often causes floods and forms a large number of black fruit. People like to call metal sheets. fruit. Citrus rust tick control points According to the law of occurrence of rust ticks, prevention and control plans should be well prepared for prevention and prevention. From May onwards, inspections have been focused on, and it has been found that individual fruit is yellow and ash immediately undergoes chemical control; selected sensitive drugs are sprayed, and attention is paid to the rotation of medicines; reasonable pruning allows the trees to be air and light, which facilitates the coverage of pesticides; and improves the quality of spraying. To ensure that no dead ends are left, there has been an initial attention to the addition of ovicicides, or to killing the carbine once in seven days; Thompson's trichomoniasis is the natural enemies of the rust mites, and the ulcer-free disease garden pays attention to the use of copper preparations and sulfur preparations. The selection of good medicines, prevention and control according to the law of occurrence, and improvement of the quality of fight drugs are important technical points for preventing rust wall defects. It must be in place to fight drugs, and it cannot save water. Rust tick chemical formula High quality mancozeb 600 to 800 times liquid + 20% butyl sulphur EC 1000 to 1500 times; 40% butyl sulphur suspension 2000 times liquid + 20% Averis rouge 3000 times liquid; butyl sulphur suspension to fruit tree damage Small and difficult to produce phytotoxicity. Sulfur kills adult worms, snails roost kills eggs, and if the medicine plays well, it is effective on rust spiders for 20 days, which can reduce the frequency of fight drugs. 40% butyl sulfur suspension 2000 times liquid +10.8% azotriazole tin 1000 times; 20% butyl sulfur EC 1000 ~ 1500 times liquid + alvescin 3000 times (This formula can kill adult worms and eggs, relatively long effective); 1.8% avermectin 1500 times +15% tolmethoxam 2000 times; 1.8% avermectin 1500 times liquid +15% ciprofloxacin or azole carmine 1500 times (can achieve quick effect but the effective period is not long, about 7 days). Note: Sulfur is prohibited from use on fruits and vegetables since 2019. Pink Shrimp,Seafood Shrimp,Pud Pink Shrimp,Frozen Pud Pink Shrimp Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com