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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 …
Characterization Of Botrytis Cinerea Resistance To Fungicides In California Strawberry Production, Scott D. Cosseboom
Characterization Of Botrytis Cinerea Resistance To Fungicides In California Strawberry Production, Scott D. Cosseboom
Master's Theses
Gray mold of strawberry, caused by Botrytis cinerea, is a very destructive pre- and post-harvest fruit rot. Outside of California, fungicide resistance in B. cinerea has been reported to every site-specific chemical class labeled for use against gray mold. One objective of this study was to characterize the resistance of 888 isolates of B. cinerea from California strawberry fields to ten active ingredients. Isolates were collected from the same planting block in 47 fields during the early-season (0 to 8 fungicide applications) and late-season (16 to 26 fungicide applications) of 2016. Sensitivity of each isolate was determined using the …