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The Use of Trichoderma koningii in the Control of Web Blight Disease Caused by Rhizoctonia solani in the Foliage of Cowpea ( Vigna unguiculata )
Author(s) -
LatundeDada A. O.
Publication year - 1991
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1991.tb00159.x
Subject(s) - biology , rhizoctonia solani , vigna , inoculation , biological pest control , trichoderma , agronomy , rhizoctonia , cultivar , horticulture , phyllosphere , fungi imperfecti , spore , botany , bacteria , genetics
The foliage of a field‐sown cowpea cultivar (IT82E‐60) was inoculated with an isolate of the aerial ecotype of Rhizoctonia solani and sprayed thereafter, at two frequencies, with a spore suspension of Trichoderma koningii . Although the antagonist restricted the spread of web blight disease the extent of disease reduction and the yield levels were significantly (P 0.05) higher in the plants sprayed twice weekly with T. koningii spore suspension. These levels of disease reduction and yield compared favourably with those obtained from inoculated cowpea plants protected with a fungicide mixture. The significance of these results is discussed in relation to investigations on the application of Trichoderma spp. in the biocontrol of disease of the phylloplane.