Effect of chemical and biological nematicide plus pseudostem colostrum for nematode management in banana crop

Abstract

Introduction. Some research indicates that pseudostem colostrum, together with chemical and biological products, performs an effective action against the attack of R. similis and H. multicinctus in banana crops. Objective. To evaluate the nematicidal effect with chemical and biological components plus pseudostem colostrum for the management of R. similis and H. multicinctus. Methodology. Using a completely randomized block design, with a total of 8 treatments (P. fluorescens + colostrum) (B. subtilis + colostrum) (Abamectina + Tiametoxam + colostrum) (P. fluorescens + B. subtillis) (P. fluorescens) (B. subtillis) (Abamectina + Tiametoxam) and Witness, with three repetitions each. Results. Subsequently, the ANOVA was performed to compare the means of the variables using the Tukey test (p0.05). According to the analysis, it was evident that the best treatment in reducing R. similis in the soil and roots was T6 B. subtilis, reporting a reduction percentage of 77.84%, followed by T1 (P. fluorescens + colostrum) with 68.16%. However, it did not have the same effectiveness for the control of the nematode H. multicintus, for which treatment 3 (Abamectin + Thiamethoxan + colostrum) reported the highest percentage of population reduction efficacy. Conclusion. The colostrum of the pseudostem had a significant influence on the efficacy of the treatments, working as a catcher or bait for the nematodes under study. By attracting the nematodes, the rhizobacteria P. fluorescens and B. subtilis and the chemical molecule Abamectin + Thiamethoxam proved to be more effective than when used individually, thus reflecting the catalytic effect of the colostrum against the treatments. General area of study: Agronomy. Specific study area: Plant Health. Type of study: Original articles.