Gordon Johnson, Retired Extension Specialist; gcjohn@udel.edu I was asked earlier this year what could cause peaches not to ripen properly after harvest. Peaches will ripen off the tree if harvested when the background color has changed from green to yellow… Continue Reading
Gordon Johnson, Retired Extension Specialist; gcjohn@udel.edu As we approach late summer, Vineyard managers should take care to control birds when sugar contents are peaking in grapes, making them a highly desirable food source. Netting is probably the most effective control… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Vineyards At the end of last week, grape root borer was observed in decent numbers at one location. This pest can be controlled using mating disruption next year. Keep areas under vines clear from weeds… Continue Reading
Gordon Johnson, Retired Extension Specialist; gcjohn@udel.edu Late July or early August is the time to collect leaf samples for nutrient analysis in tree fruits, grapes, and blueberries. As shoots grow and leaves age, nutrient concentrations change. Mid-summer is the standard… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Vineyards Spotted lanternfly adults are currently being spotted. Scout for them invading the edges of vineyards now through October. If you see them, it also means you should be on the alert for next season… Continue Reading
