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许多植物病毒都是由昆虫传播的,特别是同翅目昆虫(蚜虫、叶蝉、粉虱等)。病毒通过已染毒的种植材料或外来的传毒媒介进入作物,并在作物中扩大蔓延。有机磷和氨基甲酸酯类杀虫剂通常是由媒介昆虫吸入有杀虫剂活性成分的植株汁液起作用的,一般能迅速杀死昆虫并足以阻止持久性和非持久性传播病毒在作物内传播。但是药剂并不能停止施药作物以外的已经带毒的媒介昆虫的传毒,也不能阻止昆虫刺吸几秒就能快速侵染的非持久性病毒的传播。
Many plant viruses are transmitted by insects, especially Homoptera insects (aphids, leafhoppers, whiteflies, etc.). The virus enters crops through infected planting material or exotic vectors and spreads in crops. Organophosphorus and carbamate insecticides are usually caused by the inhalation of plant-derived plant juices containing insecticidal active ingredients and are generally capable of rapidly killing insects and are sufficient to prevent the spread of persistent and non-persistent virus transmission within the crop . However, the agent does not stop the transmission of already poisoned vector insects outside the applied crop, nor does it stop the spread of non-persistent viruses that rapidly infiltrate insects after a few seconds of spitting.