Abstract
The different concentration of plant extracts of Datura alba Nees and Cynodon dactylon (L.) Pers. were used at 25, 50 and 100 % w/v to examined their effects in the control of root diseases in okra and cowpea. Highest concentration significantly enhanced the germination and growth parameters in terms of root length, root weight, shoot length and shoot weight in both cowpea and okra. Plant extract also reduced the infection of pathogenic fungi like, Macrophomina phaseolina, Rhizoctonia solani and Fusarium spp. on both okra and cowpea plants by increasing concentration at 25, 50 and 100 %. Plant extracts significantly suppressed formation of galls at 100 % extract of D. alba and C. dactylon on cowpea and okra. Both soil drenching and seed treatment with plant extracts showed significantly result in enhancement of growth parameters and reduction of root diseases.
