冬季柑桔上各种病虫相继由盛发期进入全面越冬期 ,是病虫生活史中的薄弱环节 ,抓住这一时机喷洒高效、低毒、低残留绿色环保农药 ,对全年病虫害控制意义重大。南丰桔农从 2 0世纪 5 0年代起就坚持使用石硫合剂和松碱合剂防治病虫害 ,因为其药效稳定、安全、效果好 ,对天敌杀伤 In winter, all kinds of pests and diseases on citrus have entered into the full wintering period from the flourishing stage, which is the weak link in pest and disease life history. Seizing the opportunity to spray pesticides with high efficiency, low toxicity and low residual green, Significant. Nanfeng Orange farmers from the 1950s onwards adhere to the use of lime sulfur and pine softener mixture of pests and diseases control, because of its stable efficacy, safety, good effect, killing of natural enemies