Recovery from soil and sensitivity to fungicides of Rhizoctonia cerealis and R. solani
1989; Cambridge University Press; Volume: 92; Issue: 4 Linguagem: Inglês
10.1016/s0953-7562(89)80191-1
ISSN1469-8102
Autores Tópico(s)Plant Disease Management Techniques
ResumoOf nine different fungicides tested, cyproconazole and benodanil were most effective and prochloraz was least effective against several isolates of both Rhizoctonia cerealis and R. solani. R. solani was more sensitive to triadimefon and fenpropimorph and less sensitive to imazalil than R. cerealis . Pencycuron strongly inhibited R. solani but had little effect on R. cerealis . The optimum temperatures for linear growth were 22° and 27 °C for R. cerealis and R. solani , respectively. Modified Gangopadhyay & Grover medium (GG medium) containing imazalil allowed selective recovery of R. solani , whereas GG medium with pencycuron and triadimefon allowed selective recovery of R. cerealis from soil inoculated with propagules of both species.
Referência(s)