Efeito de diferentes doses do formicida “citromax” no controle de Acromyrmex lundi (Hymenoptera: Formicidae).

The objective of this study was the analysis of the effect of the formicide “Citromax”, formulated with Ateleia glazioviana , in different doses on the control of Acromyrmex lundi , in native field in Sao Sepe county,  Rio Grande do Sul, Brazil. Four treatments were analyzed, constituted of doses of 5, 10 and 15g of “Citromax” and 10g of “Mirex-S” (sulphluramide 0,3%) in each nest. The statistical design was completely randomized with 10 repetitions, considering each nest as one repetition. The effectiveness was evaluated in the 1 st , 5 th , 10 th , 15 th and 20 th day after treatment application. The obtained results allow to conclude that “Citromax” shows an impact action, because there was a high percentage of control in the first five days. The Acromyrmex lundi control due to “Citromax” formicide was efficient in all the evaluated doses, obtaining a control percentage up to 85%. The influence of net size was not observed in relation to the percentage control.