BIOLOGICAL CONTROL OF PEAS (Pisum sativum L.) DAMPING-OFF DISEASE CAUSED BY FOUR FUNGI

Document Type : Original Article

Author

Plant Pathol. Res. lnst., Agric. Res. Center, Giza, Egypt.

Abstract

Four biocontrol agents. namely Rizo-N (Bacillus subtilis). Plant Guar
(Trichoderma harzianum and T. konigif) and Pseudomonas nuorescents. were teste]
for their antagonistic action against four fungi causing pea damping-off. i.e
Rhizoctonia solani, Sclerotium rolfsii, Fusarium so/ani and Macrophomina phaseolina
Through In vitro studies, Promot caused the highest percentage decrease in linea
mycelial growth of all the tested pathogenic fungi, followed by Rizo-N and Plant Guar
whereas low effect was recorded for P. nuorescents. Rizo-N (B. subtilis) gave best
results in controlling pea damping-off disease In vivo.

Keywords