CucCAP scientists identify possible sources of resistance to bacterial fruit blotch in watermelon

Bacterial fruit blotch caused by Acidovorax citrulli is a serious disease of watermelon (Citrullus lanatus) in the U.S. Currently, there are no varieties resistant to the disease. In a 3-year study, 1452 accessions and cultivars were tested for resistance to fruit blotch at the immature fruit stage, where resistance is most important for growers.

Continue reading


CucCAP researchers develop high-throughput method for quantification of pathogen growth

Researchers at Michigan State University used a fluorescent isolate of the broad host range pathogen, Phytophthora capsici, to develop a high-throughput, microtiter plate assay for replicated quantification of  pathogen growth on plant tissue in real time.  This method, which can detect pathogen growth prior to development of symptoms, can assist with screening for disease resistance, mapping of resistance loci, testing efficacy of control measures, or elucidation of fundamental host-pathogen interactions.

Continue reading


CucCAP researchers develop genetic tools and diagnostic guide for cucurbit downy mildew

Plant pathologists from the CucCAP disease management team published two articles focusing on CDM: “Population Analyses Reveal Two Host-Adapted Clades of Pseudoperonospora cubensis, the Causal Agent of Cucurbit Downy Mildew, on Commercial and Wild Cucurbits” & “Diagnostic Guide for Cucurbit Downy Mildew”

Continue reading