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Fruit and Vegetable Weekly Crop Update

West Central Illinois and Northeast Missouri
Timely vegetable crop info for local producers.

Weekly Fruit and Vegetable Update

Posted by Mike Roegge - Articles

1- 4" bare soil temperature

  1. Monmouth 66.3
  2. Perry 69.4

2- Growing Degree Days (base 50 degrees) since April 1

  1. Monmouth 1283, 10 year ave. 1103
  2. Perry 1401, 10 year ave. 1180

3- All the rains and high humidities are causing nearly all fruit and vegetable crops disease issues. Tomatoes are no exception. Early blight and septoria leaf spot are the two most common fungal diseases. These organisms survive year to year in soil. The best option to provide control is to keep any soil from splashing onto lower leaves. There they produce spores and the next rain splashes them onto the next higher set of leaves, and the disease progresses up the plant. Just as soon as the plants are in the ground- mulch. The problem is that rain can splash these spores into the air, so moving the tomatoes some distance away is very helpful. These diseases can survive in the soil for several years. Chlorothalonil, a general use fungicide, can provide some help with these diseases. For more info:

4- Keeping up a good disease and insect spray schedule has been difficult this year. A rule of thumb is that one inch of rain will wash off any applied pesticides off of leaves.

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