PDF Version of WCU 22:2 – April 4, 2014 WCU Subscription Options for 2014: Mail, Fax, Email or Text Vegetable Crops Winter Temperature Index for Predicting Stewart’s Wilt in Delaware Sweet Corn in 2014 Watermelon Pollination, Fruit Set, and Hollow… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Larvin (Bayer Crop Science) – The insecticide Larvin is under an EPA Cancellation order, effective Jan 15, 2014. The existing stocks provision notes continued sale and distribution of the product after that date is… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Fields should now be scouted for pea aphids and alfalfa weevil. When sampling for aphids and weevils, collect a minimum of 30 random stems throughout a field and place them top first in… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Currently, growing degree day (GDD) accumulation in March and April is at 26.6. This is still a long way from the over 80 GDD you need to see flowering. Remember that in… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu A bioassay is the best way to determine potential injury from Root Knot Nematode on vegetable crops, such as lima beans, from spring sampling. It can also be used to survey the… Continue Reading
