Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Continue to sample for potato leafhoppers on a weekly basis. We are continuing to find fields with yellowing from leafhopper feeding damage. Once plants are yellow, yield loss has already occurred. The treatment… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Conditions have been highly favorable for the development of brown rot in nectarines and peaches. Many nectarine varieties are very susceptible and brown rot has been heavier this year in nectarines. Brown… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Several cases of tomato bacterial spot, which is caused by Xanthomonas campestris pv. vesicatoria have occurred in our region this year. Bacterial spot is favored by warm weather… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Phytophthora on leaves and fruit of watermelon and cantaloupe is occurring throughout Maryland and Delaware. The disease has been favored by the excessively wet weather. Phytophthora is a… Continue Reading
Nathan Kleczewski, Extension Specialist – Plant Pathology; nkleczew@udel.edu and Phillip Sylvester, Kent Co. Ag Agent; phillip@udel.edu Location: Art and Keith Wicks Farm, Rt 9, Leipsic, Kent County Greenrow: May 5 Date DSV Total DSV Accumulated P-Days Spray Interval Recommendation 5/20… Continue Reading
