Evaluation of seed dressing and in-furrow treatments with fungicides for control of seedling disease in cotton caused by Rhizoctonia solani

Abstract

Seven fungicides, together with the standard compounds quintozene and benodanil, were tested against Rhizoctonia solani in the laboratory and were then evaluated for the control of seedling disease in cotton grown in field plots, inoculated with R. solani. Both seed dressing and in-furrow applications gave some measure of control with all fungicides tested, but in-furrow treatments were the more effective, especially against postemergence damping off. Compounds giving the best control of seedling loss were tolclofos-methyl as a seed dressing and pencycuron plus captan in-furrow, reflecting results from the laboratory test. However, several other compounds were also as effective as the standard compound, quintozene, in controlling seedling loss.