LENTIL (Lens esculenta L.) DAMPING-OFF AND ROOT-ROT DISEASES AND THEIR CHEMICAL AND BIOLOGICAL CONTROL IN EL-MINIA GOVERNORATE.

Document Type : Original Article

Authors

Dept. Plant Pathology, Fac. Agric., Minia Univ., Egypt

Abstract

Eleven isolates of Rhizoctonia solani and 15 isolates of Fusarium sp < /em>p were
isolated from lentil rotted roots and crowns. All isolates of R.. solani except two (R2 and
Rg) aggressively attacked lentil mostly during their seedling stages. On the other hand.
three isolates of F. solani (Fll . F'2 . F,5 ). out of the 15 tested isolates showed high
pathological effect at all stages of the subjected plants causing pre- and post-
emergence damping-off and root rot.
Isolates Rs and Re of R. solani and isolate F" of F. solani attacked six local
cultivars of the lentil plants but the three Canadian cultivars tested showed great
resistance.
Seven fungicides showed various inhibitory effect against R. solani and F.
solani in vitro, the four more effective ones (Topsln-M, Rhizolex -T. Monceren and
Homi) were tested in vivo. •
Two antagonistic bacteria (Bacillus spp < /em>.) with great inhibitory effect towards R.
solani and F. solani were secured from lentil rhizosphere and adequately used as a
biocontrol agents against the two pathogens in pots experments.
Journal of Plant Production
Volume 28, Issue 10
October 2003
Pages 7289-7306

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