Prevention and control of rice aphids should be based on agricultural control and coordinate the use of biological, physical, chemical and other comprehensive prevention and control measures. In the tillering period and the panicle stage, rice is treated equally with stress, and attention is paid to the prevention and treatment of aphid damage “bridge fields†and overwintering locusts in order to reduce the number of bases and control the damage rate; and to promote flood resistant cultivars and deep-water stubble cultivars and early rice straw timely processing in accordance with local conditions. Cultivation and control measures; vigorously promote the technology of light trapping and killing; implement biological control techniques such as rice-duck symbiosis, spider protection and pest control.
In the prevention and control of pharmaceuticals, the use of safe, efficient, low-toxic and long-lasting pesticides for the treatment of parasites is promoted and rationally used. The prevention and treatment of B.thornii, B.tectaria and triazophos microemulsion, trichlorfon, avermectin and other pharmaceuticals are mixed and used, and large-scale, one-generation medicines are used for prevention and control. Prevention and treatment of Sanhua may choose fipronil plus trichlorfon, chlorpyrifos, triazophos, and timely follow-up prevention. Promote rational use of different agents and avoid long-term, single use of the same agent. Pyrethroid pesticides and their complex formulations are prohibited under paddy fields. In the use of fipronil to ensure that a season of rice up to use once.
Adhere to timely treatment according to control indicators. Anti-study bud during the delivery period, when the dry-strain rate reached 3%, the use of drugs to prevent and control; control of the ear of rice, when the last generation of 500 per mu, the current egg incubation period coincides with the rice break period , In the egg hatching period medication control. The prevention and treatment of SBPH should be based on the first drug during the egg hatching period; the prevention and treatment of Saponin, and the prevention of Shouhua's heart, all 40 eggs above the mu should be listed as the control field; in the recurrence area of ​​Sanhuayu, the rice is broken Rice fields that match the hatching period with the egg hatching period need to be treated with drugs once.
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