The primary targets for rice pest control include aphids, rice planthoppers, rice blast, sheath blight, and rice gall midge. The main focus is on promoting integrated pest management (IPM) strategies, which emphasize agricultural practices as the foundation, combined with the rational use of pesticides. By encouraging the use of natural predators and aligning various control methods, we aim to enhance overall effectiveness while reducing reliance on chemical pesticides. This approach ensures a balance between economic efficiency, safety, and environmental sustainability.
Preventive measures are crucial in regions where *S. sanguinalis* and *P. utilis* are prevalent. It is important to carefully manage planting arrangements, reduce mixed cropping areas, and minimize pest damage and migration. Adjusting sowing and transplanting times can help avoid local outbreaks. Early field flooding and reduced wintering periods can lower pupal survival rates. Selecting rice varieties with strong resistance to common pests and diseases is also essential. Seed disinfection and soil treatment in dry seedling fields help prevent seedling diseases. Proper water and fertilizer management enhances plant health and resilience against pests and pathogens.
When it comes to pesticide use, it should be based on accurate forecasts, field surveys, and established control thresholds. A "small area first, then large area" strategy is recommended. Key pests should be targeted at critical stages while addressing general issues. For rice blast, triadimefon or chlorothalonil can be used; for sheath blight, benomyl is effective. Bacterial leaf streak and bacterial blight may require copper-based fungicides. For diseases like rice leaf blight, smut, cloud disease, sheath rot, and melanosis, 40% thiram or other similar compounds may be applied. For planthoppers, pyridaben or *Bacillus thuringiensis* (Bt) can be effective. For rice gall midge, yisufeng is a suitable choice.
Rice blast should be controlled when 10% of the plants are breaking. Rice smut should be addressed 3–5 days before this stage. For rice gall midge, applications should occur 5 days after sowing and 5–7 days after transplanting.
It is strictly prohibited to use pyrethroids or their mixtures in paddy fields. Highly toxic pesticides such as methamidophos must not be used in the later growth stages of rice. Organophosphorus insecticides like triterpenoids should be used cautiously during the early stages to avoid triggering an outbreak of brown planthoppers later in the season.
Upper Arm Blood Pressure Monitor
most accurate blood pressure monitor:good blood pressure monitor:costco blood pressure monitor;citizen blood pressure monitor
Shenzhen Urion Technology Co., Ltd. , https://www.urionhealth.com