In the October 2019 issue of the Vegetable Crops Hotline, I referenced the new regulatory changes to herbicides containing the active ingredient paraquat. One of the new requirements is for closed system packaging. To quote the Environmental Protection Agency (EPA): “New closed-system packaging (is) designed to prevent transfer or removal of the pesticide except directly…Read more about A Look at the New Closed Transfer System for Paraquat-Containing Herbicides[Read More]
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Meteorological winter (December-February) is finally over and we can start looking forward to spring. Across Indiana, winter brought above average precipitation (Figure 1), though below average snowfall. The temperatures were slightly above normal (2°F-6°F; Figure 2) with no record-breaking cold periods. Since there were so few colder-than-normal periods, the overwintering of pests and therefore increased…Read more about The Winter in Review with a Spring Outlook[Read More]
Dear Watermelon Growers, At our past winter technical meeting, several growers suggested fertilizer recommendations need to be reevaluated for watermelon production in our area. This suggestion is timely and critical. We plan to initiate a project for the 2020 watermelon production season to reevaluate the fertility and irrigation practices used in Indiana. We will identify…Read more about Watermelon Fertility and Irrigation Management[Read More]
While many growers use high tunnels to extend the growing period for warm-season crops such as tomatoes or cucumbers, it is also possible to grow cool-season crops such as spinach well into winter. The winter over much of Indiana has been rather mild; spinach and other cool-season crops should be doing well. However, disease and…Read more about Cladosporium of Spinach[Read More]
When houseplants and garden seedlings are kept too wet, roots can rot and the fungus that grows in the soil can feed fungus gnats. For houseplants, fungus gnats are usually just a nuisance. When growing seedlings or in a greenhouse adults can spread fungal diseases to flowers. Larvae can spread fungal diseases when they feed…Read more about Proper Watering Prevents Problems with Fungus Gnats[Read More]
One concern for every vegetable grower is finding solutions to pest management problems quickly. An example would be anthracnose of watermelon. You recognize the disease or you have had it officially diagnosed. Or perhaps you anticipate this disease every year and want to start applications of a fungicide early in the season. Where do you…Read more about New Searchable Midwest Vegetable Production Guide[Read More]
Welcome to a new year of the Vegetable Crops Hotline (VCH), Purdue Extension’s newsletter for people in the business of growing vegetables. As usual, we will have fifteen issues throughout the 2020 growing season. The first issue of the year is sent to all who subscribed to VCH via US-mail in 2019 as well as new…Read more about Welcome to a New Year of the Vegetable Crops Hotline[Read More]
Tomato and Cucumber growers who are interested in grafting tomato and cucumber plants by themselves may find this information helpful. Step-By-Step instruction of how to graft tomato plants is available from Purdue Extension publication Vegetable Grafting: Techniques for Tomato Grafting https://mdc.itap.purdue.edu/item.asp?Item_Number=HO-260-W as well as a Purdue Extension video https://www.youtube.com/watch?v=7Ufx66Isf88 A cucumber grafting instruction was also…Read more about Learn How to Graft Tomato and Cucumber Plants[Read More]
Did you read this article about How Growing Media for Organic Production Compare ? Or this one about Abnormal Transplant Symptoms Might be Caused by Poor Media ? Please let us know whether they were helpful by taking a short survey here: https://purdue.ca1.qualtrics.com/jfe/form/SV_54rCQ6xW3w7ZcXz
Growing media for organic transplant production vary a lot in their chemical composition: pH, electrical conductivity, nutrient levels, and C:N ratio. This of course influences how seedlings grow. Knowing the characteristics of growing media can help growers decide whether adding nutrients or materials to adjust pH are likely to improve seedling growth. As part of…Read more about Submit Your Organic Transplant Growing Media for Chemical Analysis[Read More]
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