TRATAMENTO DE SEMENTES DE SOJA, PARA O CONTROLE DE Pratylenchus brachyurus

Abstract

The Pratylenchus brachyurus is one of the nematodes that cause most damage to soybeans. Thus, the objective of this work was to evaluate the control of this nematode using different products in the seed treatment, including chemical and biological products and the feasibility of mixing these tools. The experiment was conducted in the field at Instituto Federal Goiano - Campus Urutaí, the experimental area was delimited in plots composed of 8 lines of 4 meters in length, adopting four planting lines as controls for each treatment (paired control), the treatments were: Imidacloprid + Thiodicarb (T1), abamectin (T2), Bacillus licheniformis + Bacillus subitilis + Trichoderma (T3) Imidacloprid + Thiodicarb with Bacillus licheniformis + Bacillus subitilis + Trichoderma (T4), Abamectin with Bacillus licheniformis + Bacillus subitilis + Trichoderma (T5), at harvest, the borders and half a meter of each line were discarded to avoid contamination chances. The variables analyzed were: number of P. brachyurus in the root and in the soil, at 30, 60 and 90 days. The use of seed treatment in soybean was efficient in reducing nematodes, but this reduction did not always remain continuous. KEYWORDS:, Pratylenchus brachyurus; nematoide, seed treatment.