RESISTANCE OF SEVEN GENOTYPES OF MAIZE (Zea mays, L.) TO THE ATTACK OF Sitophilus zeamais MOTSCHULSKY, 1855.

Abstract

SUMMARY: The maize (Zea mays, L.) is a highly agricultural product grown in the entire national territory, having its utilization use human and animal consumption, besides derivatives used in the production and industrialization of food. Like other grains grown in the country, suffers the attack of many pests during its development in the field and during storage, having among the most harmful, the weevil of the genus Sitophilus spp. The objective of this study was to evaluate the resistance of seven genotypes of maize to attack of S. zeamais MOTS., 1855. The results for the variables weight reduction, the number of weevil at the end test, percentage of the attack and reduction of nitrogen content, indicated that the hybrids that best highlighted in the resistance were the C 701 (Cargill) and AG3050 (Agromen), being the most resistant and indicated for locations with high pressure of infestation. Key Words: Damage. Infestation. Weevil. Controlled environment.