Water and soil pH is very important. Imidazolinone activity is largely determined by soil clay and organic matter. Greater clay and organic matter content require a higher dose. The imidazolinones exhibit a range of crop and weed sensitivities. Plant-back restrictions vary with region and crop species.
Sunlight plays a minor role in imidazolinone losses.
If the active ingredient stays unprotected on the soil surface, a relatively small portion of the herbicide may be lost due to ultraviolet decomposition. Lack of herbicide rotation or tank-mixing can encourage resistant weeds. Plant injury symptoms. Same as sulfonylureas. Benzonitriles Key performance features.