THE STORED BEANS GRAIN PRESERVATION WITH BIOLOGIC ORIGIN INSECTICIDE OF AVERMECTINI'S GROUP

Aiming to study alternatives to control Acanthoscelides obtectus in beans grain, it was made this experiment, evaluating the abamectin's efficiency. The experimental design was completely randomized in factorial scheme 6 x 7, with 3 replications. There were 6 grain treatments and 7 storage periods. It was used bean grain 'EMGOPA -201', treated with abamectin in dosages 1.0, 3.0 and 5.0 ppm, pirimifós-metil (10 ppm) and deltametrina + fenitrothion (0.4 + 7.5 ppm), and control. After treatment, grain samples were kept away, packaged in a bottle with web ird, and infested with 20 no sexed insects. The insecticide efficiency was evaluated 02, 30, 60, 90, 120, 150 and 180 days after treatment. It was observed that from 30 days storage, all products reduced the alive insects number and that abamectin insecticide must be recommended in 3.0 ppm dosage.