Comprehensive control of rice borers

To effectively manage rice aphids, an integrated approach combining agricultural practices with biological, physical, and chemical control methods is essential. During the tillering and panicle development stages, it's crucial to monitor and manage "bridge fields" where aphids may migrate from, as well as overwintering populations that can lead to severe infestations. Farmers should prioritize planting flood-resistant or deep-water rice varieties, and promptly process early rice straw to reduce pest habitats. The use of light traps for capturing aphids should be widely promoted, along with biological control strategies such as rice-duck co-culture, spider conservation, and natural pest regulation. In terms of pesticide application, it's recommended to use safe, efficient, and low-toxicity products with long residual effects. Mixtures of Bacillus thuringiensis, B. tectaria, triazophos microemulsion, trichlorfon, avermectin, and other formulations should be applied in a timely manner. Large-scale, single-generation treatments are advised for effective control. For Sanhua aphid management, a combination of fipronil with trichlorfon or chlorpyrifos can be used, followed by regular monitoring. It's important to rotate different active ingredients to prevent resistance and avoid continuous use of the same compound. Pyrethroid-based pesticides and their combinations are strictly prohibited in paddy fields. Fipronil should be used no more than once per rice season. Timely intervention based on established thresholds is critical. During the heading stage, if the dry-strain rate reaches 3%, insecticides should be applied. When controlling the rice ear, if there are 500 aphids per mu and the egg-hatching period overlaps with the rice heading phase, treatment should occur during the hatching period. For SBPH (Small Brown Planthopper), the first spray should be applied during the egg-hatching period. For Saponin aphid control, any field with more than 40 eggs per mu should be targeted. In areas prone to recurrence, fields where the hatching period aligns with the rice growth stage must be treated once to prevent outbreaks. Regular field inspections and adherence to these guidelines ensure sustainable and effective aphid management.

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