Interpreting Threats and Risks
This page contains information on source threats and their associated risks, as well as how the risk assessments are formulated
Photo Gallery of Foliar Diseases (including Downy Mildew)
View this page to see various foliar diseases on cucurbits
Field Identification
See tips for how to identify select cucurbit diseases with a hand lens as well as illustrations showing how diseases effect cucurbits
Basil Downy Mildew Mapping
This will take you to the Basil Downy Mildew site
Interesting Links
A collection of useful, interesting links relating to Cucurbit Downy Mildew
Maps of Cucurbit Acreage
See past maps taken from the USDA Agricultural Census on cucurbit harvests
Cucurbit Crops Grouped by Scientific Name
Downy mildew pathogen specialization is based on cucurbit Latin name. This is important to understand when determining if a specific crop type being grown is at risk for downy mildew. For example, if you are growing Halloween pumpkin, then downy mildew reported occurring nearby (within the same risk area for a forecast) on any Cucurbita pepo is a potential source of the pathogen for your crop. The map filter displays downy mildew occurrence based on Latin name.
| Latin (scientific) name | Common name |
|---|---|
| Cucumis sativus | Cucumber |
| Cucumis melo | Cantaloupe, honeydew melon |
| Cucurbita moschata | Butternut squash, calabaza squash, cheese pumpkin, neck pumpkin |
| Cucurbita pepo | Summer squash, zucchini, pattypan squash, acorn squash, delicata squash, spaghetti squash, Halloween pumpkin, some gourds |
| Cucurbita maxima | Buttercup squash, Hubbard squash, kabocha squash, red kuri squash, giant pumpkin, processing pumpkin, Turk's turban gourd, banana squash, + some less commonly grown squashes |
| Citrullus lanatus | Watermelon |
| Some other cucurbits: | |
|---|---|
| Cucurbita argyrosperma* | Cushaw squash *aka C. mixta |
| Lagenaria siceraria | Bottle gourd, calabash, swan gourd |
| Luffa cylindrica | Sponge gourd |
| Trichosanthes cucumerina | Snake gourd |