Bispyribac-sodium is a common herbicide used in rice fields to control weeds. To expand the weed control spectrum and enhance effectiveness, bispyribac-sodium is often used in combination with other herbicides. So, what are the best herbicide combinations with bispyribac-sodium for weed control? Let's find out.
1. Bispyribac-Sodium + Cyhalofop-Butyl
For controlling barnyard grass, goosegrass, and various other weeds on ridges, bispyribac-sodium can be used alone. If there are also weedy rice species, a combination of bispyribac-sodium and cyhalofop-butyl is recommended. For japonica rice cultivation, bispyribac-sodium + cyhalofop-butyl can be used.
2. Bispyribac-Sodium + Metolachlor
Depending on the previous crop and the occurrence of grassy weeds, choose either a single application (post-emergence) or two applications (pre-emergence and post-emergence). It is advisable to opt for a single application whenever possible. For example, during the one-leaf to one-tiller stage, mix metolachlor and bispyribac-sodium for spraying to both weed and promote tillering.
3. Bispyribac-Sodium + Quinclorac
For controlling barnyard grass, goosegrass, and Chenopodium album on ridges, a combination of bispyribac-sodium and quinclorac is effective, especially for Chenopodium album.
4. Bispyribac-Sodium + Pyrazosulfuron-Ethyl
Mainly targeting barnyard grass, goosegrass, and broad-leaved weeds in the ridges, especially where there is a lot of hollow barnyard grass, it is essential to use bispyribac-sodium in combination with pyrazosulfuron-ethyl.
5. Bispyribac-Sodium + Thiobencarb
Combining bispyribac-sodium with thiobencarb effectively controls Echinochloa crus-galli, Cyperus iria, and broad-leaved weeds in rice fields.
Considerations for Using Bispyribac-Sodium
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Ensure the temperature is above 15°C for effective application; lower temperatures reduce herbicidal efficacy.
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Bispyribac-sodium needs to be diluted twice before use, and adjuvants should be mixed immediately before application.
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If it rains within 6 hours after application, it may affect the herbicidal effect, necessitating a re-spraying.
In conclusion, the above outlines the best herbicide combinations with bispyribac-sodium for effective weed control in rice fields. Bispyribac-sodium is safest to use after the rice reaches the three-leaf to one-tiller stage, and it can also be combined with other herbicides for enhanced effectiveness.
