title: Control of Linepithema micans (Hymenoptera: Formicidae) and Eurhizococcus brasiliensis (Hemiptera: Margarodidae) in Vineyards Using Toxic Baits.
abstract: Linepithema micans (Forel) (Hymenoptera: Formicidae) is the main ant species responsible for dispersal of Eurhizococcus brasiliensis (Wille) (Hemiptera: Margarodidae), a root scale that damages grapevines in southern Brazil. The effects of different formulations of toxic baits based on boric acid and hydramethylnon to control L. micans and E. brasiliensis were evaluated. Toxic baits with boric acid (1.0%) mixed in different concentrations of inverted sugar (20%, 30%, and 40%), and hydramethylnon, mixed with sardines (paste), cassava flour and peanut, brown sugar (sucrose), or sardine oil-based gel, were evaluated in a greenhouse and in the field. In the greenhouse experiment, the number of foraging ants was significantly reduced in the pots where the hydramethylnon in sardine paste (Solid S), sardine oil-brown sugar-based gel (GEL SAM), and peanut oil-brown-sugar gel (GEL AM) formulations were applied. The GEL SAM toxic bait effectively reduced the infestation of L. micans, and could be used for indirect control of E. brasiliensis on young grapevines.
authors.affiliation: Laboratório de Entomologia, Embrapa Uva e Vinho, Bento Gonçalves, RS, Brazil (alinondillo@gmail.com; flavio.bello@embrapa.br; marcos.botton@embrapa.br), alinondillo@gmail.com.
authors.forename: Aline
authors.initials: A
authors.lastname: Nondillo
authors.affiliation: Departamento de Fitossanidade, Universidade Federal de Pelotas, Pelotas, RS, Brazil (simoneandzeiewski@yahoo.com.br), and.
authors.forename: Simone
authors.initials: S
authors.lastname: Andzeiewski
authors.affiliation: Laboratório de Entomologia, Embrapa Uva e Vinho, Bento Gonçalves, RS, Brazil (alinondillo@gmail.com; flavio.bello@embrapa.br; marcos.botton@embrapa.br).
authors.forename: Flávio
authors.initials: F
authors.lastname: Bello Fialho
authors.affiliation: Centro de Estudos de Insetos Sociais, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, SP, Brazil (odaircb@rc.unesp.br).
authors.forename: Odair Correa
authors.initials: OC
authors.lastname: Bueno
authors.affiliation: Laboratório de Entomologia, Embrapa Uva e Vinho, Bento Gonçalves, RS, Brazil (alinondillo@gmail.com; flavio.bello@embrapa.br; marcos.botton@embrapa.br).
authors.forename: Marcos
authors.initials: M
authors.lastname: Botton
mesh_terms: D000818:Animals; D001000:Ants; D001888:Boric Acids; D006430:Hemiptera; D007300:Insect Control; D007306:Insecticides; D011744:Pyrimidinones; D027843:Vitis / Q000254:growth & development
chemical_list: D001888:Boric Acids; D007306:Insecticides; D011744:Pyrimidinones; C041642:hydramethylnon; C032688:boric acid
keywords: ant; control; hydramethylnon; scale