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The objective was to determine the occurrence of pests, ladybugs and the percentage of larvae mined attack common bean grown under deficient and adequate nitrogen. The study was conducted at the Federal University of Tocantins, in 12 genotypes of common bean under two managements of the element nitrogen (N) (with and without stress). To collect samples of insects were made by tapping a meter per treatment in plastic tray before and after application of insecticides. For the sampling of leaf miner were counted the number of leaves attacked by genotype. Found bug Nezara viridula, sharpshooter Empoaska spp., cows Cerotoma arcuata and Diabrotica speciosa, ladybugs Eriopis connexa and Cycloneda blood. There were no differences between the number of insect pests found in the bean with and without stress of N. The ladybug E. connexa was the one that occurred. Before applying insecticides to E. connexa occurred more under stress in plants of N. After insecticides E. connexa occurred more stress-free plants of N. The leaf miner attack was higher in plants without stress N. More leaves, the greater the percentage of miner attack in bean under stress of N. Key-words: Nitrogen, plant defense, ladybug, leaf miner

Nutrição e genética na ocorrência de pragas, inimigos naturais e ataque de minadoras em feijão comum (Phaseolus vulgaris)