Benzimidazole Fungitoxicants in Virginia Soils:Movement, Disappearance,and Effect on Microorganisms,

摘要

Knowing movement,degradation,disappearance,and effect of a soil-applied pesticide on microorganisms in soil is essential before its widespread usage is permitted. This study sought to: (1) Determine the movement benzimidazole fungitoxicants in Appling, Sassafras, Wickham,and Frederick soil types by soil thin-layer chromatography (STLC),soil columns,and in situ models; (2) study the disappearance of soil-applied benzimidazole compounds at different concentrations and soil temperatures;and (3) observe the effect of benzimidazole fungitoxicants on microbial populations. The research suggests that these specific fungitoxicants would not pose a serious problem as soil or water contaminants.