Phytonematodes in Integrated Crop-livestock Systems of Tropical Regions

Abstract

The integrated crop-livestock system (ICLS) is a model of sustainable cultivation that allows the recovery of degraded pastures and the intensification in pasture and grain production. However, the presence of pathogens in the production fields has hampered the employment of these systems. In order to minimize or eradicate the phytonematodes in the production fields and the seeds used in CLIS, it is necessary to know the nematofauna. Based on this, this work aimed to perform a literature review describing the main forages and agricultural crops used in integrated crop-livestock systems in tropical regions, the major phytonematodes associated with these crops and their control measures. This work was based on a literature review from the Scielo, Scopus and Google Scholar databases, with data from 1999 to 2019. The initially used keywords were "tropical weeds"; "Agricultural crops"; and "ICLS" and their respective terms in the Portuguese language. From the initial results, we used the keywords "Brachiaria syn. Urochloa sp. "; "Phytonematodes"; "Millet"; "Maize"; "Panicum sp."; "Soy"; "Sorghum", and "ICLS" and their respective terms in the Portuguese language. Publications that did not meet the criteria of this study (analyzed by titles and abstract) were considered as exclusion criteria, as well as repeated works in the databases. Based on the literature, the cultivation of forages belonging to the genera Brachiaria syn. Urochloa sp. and Panicum sp., along with and soybean, maize, sorghum and millet are predominant in the ICL system of tropical regions. The phytonematodes Meloidogyne sp., Pratylenchus brachyurus, Heterodera glycines, Rotylenculus reniformis, Aphelenchoides sp., Ditylenchus sp. and Filenchus sp. cause greater severity of damage to the main cultures used in ICL. No control method can eradicate the phytonematodes. The most effective control for the studied phytonematodes is through integrated pest and disease management.

Cenários futuros para a produção de bovinos de corte no Brasil

“…A adoção do sistema ILPF, melhor aporte nutricional dos bovinos e recuperação de áreas degradadas pela pecuária auxiliam na amenização da problemática dos impactos ambientais causados pela bovinocultura de corte (AVELINO et al, 2019). Outras soluções têm sido desenvolvidas como produtos de controle de fermentação ruminai, aditivos e probióticos para melhorar o manejo e a nutrição de bovinos, práticas como estas buscam reduzir o impacto ambiental da produção pecuária (MARTIN et al, 2016).…”

Efficiency of Vinasse Application on Root-Knot Nematodes in Soybean

“…In the 2022/2023 harvest, Brazil achieved a new production record with 154,603.4 million tons, marking a 0.9% increase compared to the previous record set during the 2020/2021 harvest [1]. Increasing agricultural productivity is a challenging task, mainly due to the presence of biotic factors, such as phytonematodes, which induce significant limitations in crop production and development [2,3].…”

O uso de adubos orgânicos aumenta o crescimento da soja em solo infestado por Pratylenchus brachyurus

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