红花留种田稻蔸中的越冬稻螟,是我省稻螟主要有效虫源,一定要抓住消灭它这个关键。当前,还没有落实红花留种田的应及早落实下来,还没有拔掉禾蔸或拔得不彻底的,可以抓住有利时机,灌水灭螟。据研究得知,在早春平均气温18～19℃时,三化螟越冬幼虫在加速发育,准备化蛹,需氧量 Safflower to stay rice field wintering rice borer, rice borer is the main source of effective insects, we must seize the key to eliminate it. At present, the implementation of safflower farming has not yet been implemented as soon as possible, and unpolluted grass or unpolished grasslands have yet to be drastically removed, so as to seize the favorable opportunity to irrigate and destroy pests. According to the study, in the early spring when the average temperature of 18 ~ 19 ℃, overwintering rice stem borer in the accelerated development of pupation, preparation for pupation, oxygen demand