Nondillo A, Baronio C A, Bernardi D, Bueno O C, Botton M
Centro de Estudos de Insetos Sociais, Instituto de Biociências, Univ Estadual Paulista, Rio Claro, SP, Brasil.
Depto de Entomologia, Embrapa Uva e Vinho, Av. 24-A, 1515, 95700-000, Bento Gonçalves, RS, Brasil.
Neotrop Entomol. 2016 Aug;45(4):357-60. doi: 10.1007/s13744-016-0374-1. Epub 2016 Feb 11.
Linepithema micans (Forel) is considered to be the main ant species responsible for the spread of Eurhizococcus brasiliensis (Wille), a soil scale that damages vine plants in southern Brazil. In this work, the seasonal life cycle of L. micans was evaluated in vineyards to define the most appropriate time for the application of toxic baits for control. Ant nests were transported to the laboratory in plastic bags, and individual ants were separated into groups of eggs, larvae, pupae, workers, males, and queens, recording the number of individuals per colony. The seasonal life cycle of L. micans in the vineyards began in spring with the deposition of eggs by queens. During the warm months of the year (spring and summer), it was possible to observe nests consisting primarily of eggs and pupae. During the autumn and winter months, the colonies were composed predominantly of larvae and a reduction in eggs was observed. Because the main control strategy targets the larval stage of the insect, the application of toxic baits for the control of L. micans must be performed during the winter.
米氏皱胸蚁（Forel）被认为是导致巴西根粉蚧（Wille）传播的主要蚁种，巴西根粉蚧是一种土壤蚧虫，会对巴西南部的葡萄藤造成损害。在这项研究中，在葡萄园评估了米氏皱胸蚁的季节性生命周期，以确定施用毒饵进行防治的最合适时间。蚁巢用塑料袋运到实验室，将单个蚂蚁分为卵、幼虫、蛹、工蚁、雄蚁和蚁后组，记录每个蚁群中的个体数量。葡萄园里米氏皱胸蚁的季节性生命周期始于春季，蚁后开始产卵。在一年中的温暖月份（春季和夏季），可以观察到主要由卵和蛹组成的蚁巢。在秋冬月份，蚁群主要由幼虫组成，且观察到卵的数量减少。由于主要的防治策略针对昆虫的幼虫阶段，因此必须在冬季施用毒饵来防治米氏皱胸蚁。
