Bispyrin is a pyrimidine salicylic herbicide that can effectively control weeds and other grassy weeds in the paddy field, and also treats most broad-leaved weeds and some Cyperaceae weeds.
There was a difference in the safety of diterpenes against different rice varieties and different leaf stage. The safety of varieties was: japonica rice> hybrid rice> japonica rice> japonica rice. In application, no matter which variety was used before the cloverleaf, there would be fading. The green phenomenon is generally safer for indica rice after the clover period, and japonica must be used after the 5 leaf stage. In the case of weak seedlings in the field and high usage, chlorosis will occur within 3 days after application, and it will generally return to green within 7-10 days. Indica rice is not recommended for use.
The suitable temperature for the use of diterpenic ether is between 15°C and 45°C. Within the suitable temperature range, the efficacy of the diterpenic ether against weeds increases linearly with increasing temperature, and the safety is also better. In the southern rice area, In particular, in the middle and lower reaches of the Yangtze River, the temperature of early rice during the application of a large change in temperature, do not use less than 20 °C, at the same time, when the temperature is higher than 35 °C, the water evaporates quickly, but also prone to phytotoxicity, so the recommended temperature is 20 °C-35 °C.
YT-M95
YT-M95
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