Pathology Issues with Field Vegetables

2 Oct

Today, Texas A&M University Extension Plant Pathologist & Professor Dr. Tom Isakeit dropped by the Howdy! Farm to check out some of our plants and help with disease diagnosis. He diagnosed Powdery Mildew and Downey Mildew, which are fungal diseases, on our Cucumbers and some Cantaloupe. He diagnosed Squash Silverleaf, a disease vectored by the Silverleaf whitefly larvae. We also have a severe caterpillar infestation. This week we will be spraying Spinosad, an organic insecticide, to combat the catepillars. This application will be followed up with a BT insecticide application in 3 days. The silverleaf disease will set the squash back in terms of yield but other than that they will be fine. The cucurbits (melons + cucumbers) are a large concern. We will begin spraying with the organic fungicide Copper Sulfate and will apply an application once a week. The fungicide will not kill the infection but merely keep it at bay.

Feel free to reach out to Dr. Isakeit @:

118A LF Peterson


One Response to “Pathology Issues with Field Vegetables”

  1. Marti Peralta October 18, 2012 at 9:02 pm #

    This information is very valuable. Sometimes it’s very easy to get to know how it is grown, but such an eventuality as the disease, we were thinking about what to do if we depronto happened or if we never touched. I read in the digital library agriculture typical of some diseases, but not yet ready to confront streak.

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