EVALUATION OF CARBOFURAN FOR THE CONTROL OF HARVESTER ANT (MESSOR GALLA FOREL) IN THE NIGERIAN SUDAN SAVANNA

Abstract The effectiveness of dijj"erent formulations of Furadan 3(7" (Carbofuran) a٦١d frequency o f application for the control o f harvester ants, Messor (!//(, ١v«s evaluated on groundnut and ,billet .fields in Maiduguri, northeastern Nigeria (Latitude 11" 51’ / ٧ and Longitude u " /6" E) frotn August to October, 2000, Results obtained showed that a considerably lower number of harvester ants were found in the vicinity o f nests that received two applications o f each of the three fornndations offttradan than in the vicinity o f nests that received one application. There was a significant difference in the number o f harvester ants between treated nests and untreated nests. Broadcasting 0/ millet seeds baited with furadan in the, run-way o f ant trails or drenching the nests with furadan suspension in water performed considerably better in reducing the population o f ants than the application o f pure granules of furadan.