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Full-Text Articles in Plant Sciences
Evaluation Of Biological Agents For Control Of Macrophomina Root Rot And Powdery Mildew In Flowering Dogwood (Cornus Florida L.), Margaret T. Mmbaga, Lucas M. Mackasmiel, Frank A. Mrema
Evaluation Of Biological Agents For Control Of Macrophomina Root Rot And Powdery Mildew In Flowering Dogwood (Cornus Florida L.), Margaret T. Mmbaga, Lucas M. Mackasmiel, Frank A. Mrema
Agricultural and Environmental Sciences Faculty Research
Six biological control agents (BCAs) (two bacteria, two fungi, and two yeasts) that were previously shown to be effective against powdery mildew (Erysiphe pulchra) were tested for efficacy against Macrophomina phaseolina root rot on flowering dogwood (Cornus florida) in the greenhouse. Two of the bacterial isolates, Stenotrophomonas sp. (B17A) and Serratia sp. (B17B), were effective in controlling both macrophomina root rot and powdery mildew, similar to fungicide control thiophanate methyl, when roots were drenched with the six BCAs individually. In addition, the two bacterial BCAs improved plant growth with respect to stem diameter, stem length, dry weight, and green foliage …