Gordon Johnson, Extension Ag Agent, Kent Co.; gcjohn@udel.edu
Here are some additional photos of the ozone injury we are seeing in vegetable crops right now. See the article titled Air Pollution in Vegetable Crops in WCU 16:17 for more information on air pollution injury.
Ozone injury in watermelons. Note how leaves initially turn white in color. They will darken as the injury progresses.
Ozone injury in muskmelons. Note the yellowing of the older leaves.
Ozone injury in melons is often seen as a yellow strip down the middle of melon beds where interior leaves have been damaged.
Ozone injury on summer squash.