Mirid bug species (Heteroptera: Miridae) of grape pests in the south of the Russian Far East
Two mirid bug species, Apolygus spinolae and Neolygus aceris (Heteroptera: Miridae) were registered during 2019-2021 on several varieties of grape grown in the south of the Russian Far East. Development of bug eggs in overwintering buds, sucking grape tissue by early instar nymphs living inside flower buds in spring, and further damage to leaves, inflorescences and berries by older instar nymphs and adults were observed. The developmental cycle in bugs of the new generation is completed by the end of the first ten days of July, after which the bugs disperse to other plants for further feeding and development. The sites of punctures made by bugs on leaves are suberized and then, as the leaves grow, the damaged areas collapse and fall off. Damaged inflorescence and ovaries fall off, and remaining berries are covered with brown scratches.