Taking an environmentally sensitive approach to pest management


Missouri Produce Growers



AUTHOR

James Quinn
University of Missouri
Extension
(573) 634-2824
quinnja@missouri.edu

IPM shorts from around the state and other items of interest

James Quinn
University of Missouri
(573) 634-2824
quinnja@missouri.edu

Published: July 1, 2013

IPM Shorts

  • Spotted wing drysophila has been found at Licoln University traps near St. Louis & Springfield.
  • Cucumber beetle numbers seem low this year. Reason? Last year’s drought or the heavy rains this year are the best guesses.
  • Detrimental herbicide drift from spraying on windy days seemed to be bad this year, or we just received more reports of it. The rainy spring time constrained many spring farming activities.
  • Zucchini issues fruit set problems. Likely causes are due to rainy conditions, either failure to pollinate or Choanephora wet-rot (blossoms & fruit).
  • Cucumber mosaic virus on tomatoes from Western Missouri.
  •  Bacterial spot on peppers. To control a bacterial disease, use copper not a fungicide.

IPM Shorts

  • Just after the April newsletter went to the printer, the deadline for comments regarding the proposed rule were extended into September. The date in April was an error.

Also accompanying this newsletter
A publication from NC Cooperative Extension on herbicide carryover in manure, hay, compost, and grass clippings. A wide variety of incidences related to these type of highly persistent active ingredients occurred over the years, including:

  • Commercially produced compost (2011 & 2013) with manure being the source.
  • Pasture soil moved to build up a high tunnel.
  • Commercial growing media! Theory is ground bark was contaminated by Tordon (brush killer), which contains picloram.
  • Municipally produced compost; brush killer or a turf herbicide could be the source.

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REVISED: November 24, 2015