News on the disease and insect fronts has been quiet. It is getting to be the time to put out bud set fertilizer applications if that is part of your nutrition program.
If you plan to do tissue tests, collect your samples from mid-August through mid-September. You can get your samples analyzed locally or send them off to UMass for analysis. Samples should contain no more than the top 2 inches of growth (no roots, soil, runners, or fruit). Collect tissue from vegetative and flowering uprights. You typically need about 1 cup of vine tissue. Do not collect samples when the vines are wet and do not send the samples in plastic ziploc bags. Always request nitrogen determinations when you submit your samples.
If you are still applying pesticides (e.g., 2nd application of Ridomil or Aliette for Phytophthora), be sure to observe all needed PHIs. Many products have at least a 30-day PHI.
The IPM Message will now only be updated on an “as needed” basis. Happy Harvesting!