Weeds in forest firebreak fields compete with crops for water, nutrients, and light, and fields with severe weed infestations show significant yield reductions. Herbicide selection for weed control must be based on the weed species present and their precise growth stage—Sentai 25% Hexazinone Aqueous Solution is registered for weed control in forest firebreak fields.
For annual weeds in forest firebreak fields, the herbicides used differ between grasses and broadleaf weeds, and the application methods also vary between pre-emergence and post-emergence stages. For soil residual treatment, the herbicide should be applied after sowing but before crop emergence, allowing the herbicide film to cover the soil surface. For foliar treatment, targeted spraying should be conducted when weeds are at the 3–5 leaf stage and when the crop is relatively safe.
Sentai 25% Hexazinone Aqueous Solution (SL), Registration No. PD20070384 (subject to the actual label). Used for weed control in forest firebreak fields at 334–500 mL/mu, applied as foliar spray. Dilute with water according to weed spectrum and crop growth stage, and spray evenly. Take care to avoid spray drift onto crops.
For stem and leaf herbicide application, lower the nozzle and spray only the weeds to prevent herbicide drift onto crop plants, which may cause injury. Do not spray on windy days or before rainfall. Dosage varies considerably among different formulations; conduct a small-scale trial first before large-scale application. Always follow the product label for specific instructions.
