27:7 | Weekly Crop Update

Low pH and Nutrient Deficiencies in Vegetables

May 10, 2019cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu As soil pH drops, availability of magnesium and calcium declines while manganese availability increases, often to toxic levels. Below pH of 5.2, the chemistry of the soil changes and aluminum is released… Continue Reading →

Vegetable Crop Insect Scouting

May 10, 2019cmanneri

David Owens, Extension Entomologist; owensd@udel.edu Watermelon I found a couple of aphids on my greenhouse transplants and didn’t think too much of them. I set my transplant trays outside to harden off last week and came back to them this… Continue Reading →