The experimental control of sauba ants (Atta bisphaerica, A. laevigata, and A. sexdens rubropilosa) with Basformid F. 214 dry powder

Abstract

The purpose of this work was to test the efficiency and best dosagens of the formicide Basformid F-214 dry powder (a mixture of 5% Aldrin with Esther-2 chlorofenol of 5% sulfo-vinila acid) in the species of sauba ants Atta bisphaerica Forel, 1908, Atta laevigata Fred. Smith, 1858 and Atta sexdens rubropilosa Forel, 1903. The formicide was used at a dosage of 15 g and 20 g/m² of loose soil. In the field 60 sauba anthills were treated, 20 of each type and 10 for each dosage. The final results showed that the dosage of 20 g/m² of loose soil had an average efficiency of 80% for the species, and the average efficiency of the dosage of 15 g/m² of loose soil was 66,66%. The general average efficiency was 73,33%. These results were obtained with only one application of the formicide, without repeating the process.