Related Experiment Video
Updated: Aug 19, 2026

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
Published on: May 15, 2017
Quantitative effects of some pesticides on certain physiological groups of micro-organisms in soil
Abstract:
Quantitative effects of temik (insecticide and nematocide), orthocide (fungicide), or treflan (herbicide), added to soil at field rate application, on counts of certain desirable soil microorganisms were studied. In the presence of any of the pesticides, counts of aerobic cellulose-decomposers were either stimulated or depressed. Despite the temporarily slight stimulation, observed in some instances of the initial periods, the effect of any pesticide on counts of Azotobacter, N-fixing clostridia, and ammonifiers was subsequently depressive. The period of retardation or stimulation differed according to the chemical composition of the pesticides and physiological properties of micro-organisms. However, the autotrophic nitrifying bacteria, especially ammonium-oxidizers, seemed to be more sensitive and their counts in treated in treated soil were sharply depressed.
Related Concept Videos
Microorganisms in Agriculture and Food industry
Biological Methods for Microbial Control
Antimicrobial Effectiveness
Microbe-Plant Interactions
Soil Microbial Ecology
Microbial Bioremediation of Pesticides

