Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu With the recent hot temperatures and more predicted, there is high potential for sunburn in fruits and fruiting vegetables. Growers may need to consider ways to protect against sunburn. Sunburn is most… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu We are starting to see the oldest leaves (crown leaves) in watermelons, cantaloupes, squash, cucumbers, and pumpkins with large areas that are discolored (white, tan, or bronze). These leaves will be brittle… Continue Reading
Jake Jones, Extension Agriculture Agent, Kent County; jgjones@udel.edu Gummy Stem blight caused by Stagonosporopsis spp. is a major disease of cucurbits in our region. High humidity, rainfall, and overhead irrigation, along with temperatures around 75°F for watermelon and cucumber and… Continue Reading
– Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Hollow Heart Hollow heart is an internal crack in the flesh of the melon. Hollow heart is generally more severe in seedless varieties and in crown-set fruit. Inadequate pollination has been… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Starting to see some watermelon, cucumber and other cucurbit crops that are looking a bit pale green or even yellow (Fig. 1). Sometimes the plants have brown speckles or spots on… Continue Reading
