Pseudococcus maritimus status as an economic pest increased substantially after it was identified as a key vector of most grape vine leafroll-associated viruses (GLRaVs). Of these viruses, GLRaV-3 is the most economically destructive. Current control recommendations for slowing the spread of GLRaVs include one to two applications of insecticides to reduce vector populations. Systemic insecticides require the insect to feed before death or paralysis occurs. It was unknown if systemic insecticides could paralyze or kill P. maritimus quickly enough to reduce their ability to vector GLRaVs. Hence, we tested imidacloprid, spirotetramat, and flupyradifurone to see if these insecticides would have any effect on P. maritimus’ efficiency to vector GLRaV-3 on treated grapevines. We conclude that these systemic insecticides do not convey any additional protection to grapevines. However, these insecticides are still useful for reducing vector populations and indirectly reduce the potential spread of GLRaVs among vines in vineyards.

蚧maritimus它被鉴定为最葡萄卷叶伴随病毒（GLRaVs）密钥矢量后作为经济害虫状态大幅上升。在这些病毒中，GLRaV-3具有最经济的破坏力。目前用于减缓GLRaV传播的控制建议包括一到两次施用杀虫剂以减少媒介种群。内吸性杀虫剂要求昆虫在死亡或麻痹之前进食。尚不知道内吸性杀虫剂能否足够快地麻痹或杀死海疟原虫，从而降低其携带GLRaV的能力。因此，我们测试了吡虫啉，螺旋体和吡虫呋喃，以查看这些杀虫剂是否会对海地疟原虫有任何影响。在处理过的葡萄树上载体GLRaV-3的效率。我们得出的结论是，这些内吸性杀虫剂不会为葡萄树带来任何额外的保护。但是，这些杀虫剂仍可用于减少媒介种群，并间接减少GLRaV在葡萄园藤蔓中的潜在传播。