Which pesticides are preferred for rice pest control?
For the control of Chilo suppressalis and Sesamia inferens, Bacillus thuringiensis and Metarhizium CQMa421 are preferentially used, and chlorantraniliprole, Emamectin Benzoate, methoxyfenozide, etc. can be used as chemical agents.
For the control of rice planthoppers, imidacloprid and thiamethoxam should be used for seed treatment and transplanting with medicines (pymetrozine is not used to delay the development of resistance); Metarhizium CQMa421, Etofenprox, nitenpyram, Pymetrozine etc. are used for spraying.
For the control of rice leafroller, it is preferable to use microbial pesticides such as Bacillus thuringiensis, MbNPV, Beauveria bassiana, Empedobacter, Metarhizium CQMa421, etc. The chemical agents can be selected from chlorantraniliprole, Tetrachlorantraniliprole, Indoxacarb, etc.
For the control of rice blast, use biological pesticides such as Bacillus subtilis, polyoxin, kasugamycin, Jinggang·cerebacillus, and phenazine-1-carboxylic acid or chemical agents such as tricyclazole and Albendazole.
For the control of sheath blight and Ustilaginoidea virens (Cke,)Tak., use biological agents such as Jinggang·Cerobacillus, Jinggangmycin A (24% A high-content preparation), phenazine-1-carboxylic acid or benzil·propiconazole, epoxiconazole, imidium copper Chemicals such as epoxiconazole.
To prevent bacterial diseases such as bacterial base rot and bacterial blight, use Bacillus subtilis, benziothiazolinone. To prevent viral diseases, use fluorophosphine, Ningnanmycin, etc.
It is worth noting that when applying biopharmaceutical varieties, the application period should be appropriately advanced to ensure the efficacy. In agro-ecological planting and breeding areas such as rice shrimp, rice fish, and rice crabs and in the adjacent mulberry and silkworm breeding areas, careful selection of pesticides is required; neonicotinoid insecticides (imidacloprid, acetamiprid, thiamethoxam, etc. ) to reduce the impact on pollinating insects; triazole fungicides should be used with caution at the breaking and heading stage to avoid phytotoxicity.
Advocate rational rotation and mixing of drugs with different mechanisms of action, and avoid long-term, single use of the same drug. The use of high-content single doses is advocated, and the use of low-content compound doses is avoided. The use of pesticides containing pyrethroids is prohibited, and organophosphorus pesticides are used with caution.
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