Q: Shen Zhiyong, Caodian Town, Baoying County: Can we use Benzodichlorine and Oryzavir 25 g/litre penoxsulam oil suspension to control weeding in paddy fields?
Answer: Bensulfuron-methyl and dichloroquinoline phosphate are not toxic to fish. Among them, the semi-lethal concentrations of bensulfuron-methyl for rainbow trout and bluegill sunfish (96 hours) were all greater than 150 mg/l, and the semi-lethal concentrations for carp (48 h) were greater than 1000 mg/l; quinclorac The lethal concentrations (96 h) of rainbow trout, bluegill sunfish, salmon, and trout were all greater than 100 mg/l. Normal application of benzyl dichloride in fish-bearing rice fields has little effect on fish. Inoja 25 g/litre penoxsulam oil suspension has no toxicity to fish, and no relevant data have been found.
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