According to the investigation of the main overwintering wintering bases carried out by the Plant Protection Regional Stations throughout the province from late October to early December of last year, the wintering base of the planthoppers has been significantly reduced. The majority of wheat hoppers are between 0.2 million and 0.5 million heads, and the southern part is 20,000 heads. Around, significantly lower than the same period in 2012. According to Zhu Feng of the Provincial Plant Protection Station, our province implemented a “one-spray three-prevention†drug use subsidy policy in small wheat fields. The insecticides used have good effects on the control of Laodelphax striatellus, reducing the amount of winter wheat fly-fly mites in wheat fields. The generation of L. striata also decreased. Last year, the occurrence of L. striata was relatively light. It is estimated that the occurrence of this generation of SBPH in our province will be lighter than last year. In addition, rice stripe disease and corn rough dwarf disease occurred mildly in our province last year, and the number of field toxicities was significantly reduced compared with previous years. It is expected that this year, the occurrence of rough dwarf disease will be Grade 2 and 3 to 4 grades of garlic in the Huaibei and coastal areas. This year, the province should plant semi-summer corn at the end of May, and it will not be affected too much by rough dwarf disease. If necessary, in the period of maize seedlings and the generation of adults of Laodelphax striatellus, choose xupacetanide and nitenidazole. Amine, pymetrozine and other drugs control the planthopper. Due to the large amount of rice planthoppers and the high rate of poisoning in the province in recent years, the occurrence of corn rough dwarf disease has led to the adoption of a strategy of adjusting sowing time and avoiding disease to prevent corn rough dwarf disease, and early spring corn Before April 15th sowing, the summer corn was postponed until June 15 after sowing, so that the susceptibility period of corn avoids the occurrence period of the adults of SBPH and reduces the incidence rate. Our province has basically formed the habit of planting the summer corn at the peak of June 15-20. However, in the summer maize planted between June 15 and June 20 last year, many fields suffered severe heat loss due to extreme high-temperature weather with a maximum temperature exceeding 37.2°C for three consecutive days on August 7-9 during the pollination season. Very large, some northern varieties even lost their crops. Last year, the incidence of planthoppers was relatively low in our province. The semi-summer corn planted in late May was not significantly affected by the dwindling disease, and the high-yield was obtained due to avoiding the abnormally high temperature period last year. Warning Triangle,Safety Warning Triangle Kit,Roadside Warning Triangle,High Visibility Warning Triangle Ningbo Zhihao Car Accessories Co.,Ltd. , https://www.zhihaoautoparts.com