My new cucumber plants that I grew from seed (and even covered with gardening...

Asked May 27, 2014, 9:00 AM EDT

My new cucumber plants that I grew from seed (and even covered with gardening cloth) are showing light spots and areas where there is a "thinning" of the leaves. Can you let us know whether it is pest or disease damage and how to act quickly to protect the plants? Thank you.

Montgomery County Maryland

1 Response

The cucumber foliage in the photo looks like it was subject to minor sucking insect damage not a disease. At this point no control is necessary.
Continue to monitor the plants. You should be aware of other insect pests such as the cucumber beetle which can spread bacterial wilt. http://extension.umd.edu/growit/insects/cucumber-beetles-spotted-or-striped
and downy mildew, a disease http://extension.umd.edu/learn/downy-mildew-cucurbits-spinach-and-brassicas
mh