Internal inhalation therapy. Toxic fluorine and phosphorus have a strong internal absorption effect, which can be quickly spread to all parts of plants through the absorption of crop leaves, destroying the virus shell, making the virus fixed and unable to continue to proliferate, effectively preventing the further spread of the disease.
Promote growth. Toxic fluorine and phosphorus can promote root growth, restore leaf function and reduce yield loss by regulating plant endogenous growth factors.
No cross-resistance. Toxic fluorine and phosphorus is the first synthetic new compound in the world, which has a unique mechanism of action, belongs to the national patent product and has no resistance to system protection.
Safety and environmental protection. Fluorophosphate is a bionic compound synthesized by amino phosphate compounds in rumen of sheep, which is highly safe for crops and non-target organisms such as bees, silkworms, fish and birds. Zhong Shichun of Jianghua County Agricultural Bureau of Hunan Province is equal to 20 1 1-20 12. It was found that 1% pymetrozine sustained-release granules were applied at seedling stage, and 600 g/667 m2 of 30% fenfluphos wettable powder and 80% nitenpyram pymetrozine were applied at tillering stage.
Li Aiguo et al. of Jiangyan Plant Protection and Plant Inspection Station in Jiangsu Province studied in Xingtai Town of Jiangyan City on 20 1 1 and found that the ultra-low volume spraying technology of "antiviral agent+insecticide" with toxic fluorine and phosphorus as the core technology can effectively control the occurrence of rice black-streaked dwarf disease. Guangxi Pesticide Testing and Management Office used 30% toxaphosphate WP on 20165438+1October 28th and 65438+February 6th, respectively, using 400g and 500g of preparation per hectare, and the control effect was 8 1 after the second application.
The Institute of Plant Protection of Jiangxi Academy of Agricultural Sciences sprayed 400.5 g/ha and 499.5 g/ha of 30% halofop-methyl wettable powder on May 65438, 2065+02 and May 28, 2065+02, respectively, and the control effects after the second application were 66.8% and 72.92% respectively.
The above information is quoted from the registration data of 30% toxaphos WP. Information sources: College of Plant Science and Technology of Huazhong Agricultural University, Wang Yanfen of Guangxi Tianyuan Biochemical Co., Ltd. and others found that the control effect of 30% toxic fluorine phosphorus wettable powder with 500 times solution and 1000 times solution on taro virus disease was 10d days respectively after the first application. After the second application, the control effects of 15d, 500 times solution and 1000 times solution were 72.8% and 59.4% respectively. At the same time, it is found that toxic fluorine and phosphorus can obviously promote the growth of taro.
Uploader: Gao Yanan.