Evaluation of insecticides for the control of Linepithema (Hymenoptera: Formicidae)

Linepithema micans (Forel) (Hymenoptera: Formicidae) is the main ant species responsible for the spreading of Eurhizococcus brasiliensis (Wille) (Hemiptera: Margarodidae), a soil scale that damages grapevine plants in southern Brazil. The effect of contact and ingestion of insecticides on the contro...

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Bibliographic Details
Published in:Journal of economic entomology 2014-02, Vol.107 (1), p.215-222
Main Authors: Nondillo, Aline, Chaves, Cindy Correa, Fialho, Flávio Bello, Bueno, Odair Correa, Botton, Marcos
Format: Article
Language:English
Subjects:
Animals
Ants
Insect Control
Insect Vectors
Insecticides
Toxicity Tests
Vitis
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Summary:Linepithema micans (Forel) (Hymenoptera: Formicidae) is the main ant species responsible for the spreading of Eurhizococcus brasiliensis (Wille) (Hemiptera: Margarodidae), a soil scale that damages grapevine plants in southern Brazil. The effect of contact and ingestion of insecticides on the control of L. micans was evaluated in a greenhouse using grapevines (Vitis spp.) infested by L. micans. The insecticides thiamethoxam (250, 187.5, and 125 g/ha), fipronil (4, 5, and 50 ml/ha), and imidacloprid (650 g/ha) were sprayed on the ground, whereas toxic baits containing boric acid (0.5, 1.0, and 1.2%), pyriproxyfen (0.3 and 0.5%), and hydramethylnon (0.5%) were evaluated in different formulations. Hydramethylnon (toxic bait) and thiamethoxam (chemical barrier) were the most efficient active ingredients for the control of L. micans.
ISSN:0022-0493