This research was developed in hibrid urograndis (Eucalyptus urophylla χ Eucalyptus grandis) plantation belonging to Jari Celulose S.A., in Pará State, Brazil, from August 1994 to January 1995. The objective was to test one granulated bait with sulfluramid and three others with chlorpirifos in three dosages compared to 10 grams of dodecachlor (0.45%) bait per square meter of ant nest against Atta sexdens sexdens (Hymenoptera: Formicidae). The bait with sulfluramid showed 77.78%; 100.00%; and 88.90% efficiency against A. sexdens sexdens at 6, 8, and 10 grams while the dodecachlor bait showed 100.00% control. The other baits and dosages showed efficiency below 45.00%.
Atta sexdens sexdens; leaf cutting ants; granulated baits; sulfluramid; chlorpirifos