On-farm Trial #1: Location: DeMotte IN Transplant date: April 24 Heating: Plants were grown in an unheated high tunnel Plant No. and plants lost: Treatment Original plant number Plants lost by June 12 Plants lost by July 20 Manny 31 19% 55% Manny/Carnivor 35 11% 34% Green 39 10% 38% Green/Carnivor 39 0% 8% Spacing:…Read more about Summary of 2020 on-farm Grafted Cucumber Trials[Read More]
It got my attention recently that the newest USDA planting map is shifted northward compared to the one before. The planting map is based on the coldest winter temperatures of the past 30 years’ record. The most recent map is generated from data in 1981-2010, the prior one is based on data from 1971-2000. Planting…Read more about U.S. planting zones[Read More]
One of the most common diseases of pumpkin in Indiana is powdery mildew. Growers are naturally anxious to observe whether the fungicide they have been applying for this disease has been effective. Therefore, many pumpkin growers scout their fields for disease. Although powdery mildew is relatively easy to recognize, it is possible to become confused. …Read more about Powdery Mildew Symptoms vs Variegated Leaves[Read More]
Daikon radish is a member of Brassica family. It forms a large white tap root like a giant carrot. The tap root (12 to 20 inches long and 2 to 4 inches in diameter) penetrates into the soil leaving 2 to 6 inches protruding above ground. Radishes are cool-season crops. They are best grown with…Read more about Daikon Radish[Read More]
As Thanksgiving approaches, I have noticed that the gourds I set out before Halloween are starting to rot. But before I throw them away, what is causing the lesions? The circular lesions that can be seen in Figure 1 and 2 are symptoms of anthracnose of gourd. That is, the pathogen that is causing the…Read more about Anthracnose of Gourds[Read More]
I probably spend too much time posting photos of diseased vegetables on-line and presenting vegetable disease symptoms in presentations. My excuse is that recognizing the symptoms of what might be a disease seems important to me. However, it might be just as important to recognize symptoms that are not of an infectious disease. See below…Read more about When a yellow leaf is just a yellow leaf[Read More]
Driving across IN now, it is not uncommon to see many recently built high tunnels standing along the roadsides. These structures have become an important tool for farmers to extend production seasons of vegetable and fruit crops. Compared with traditional greenhouses, high tunnel demand much less energy as they are heated by solar energy and…Read more about Chinese-style Solar Greenhouses[Read More]
Recently I observed lesions of leaf mold of tomato in our high tunnel at the Southwest Purdue Ag Center. I thought I would share these photos since the lesions can be variable. More information about this disease can be found at here.
We recently published an article in the Hotline about gray mold of tomato. That article and more details about this disease can be found here. In this short note, we want to share examples of the relationship of gray mold and tomato plant injury. In the figure 1 above, a pruning injury of tomato in a commercial…Read more about Plant Injury and Gray Mold[Read More]
White mold of watermelon – Usually when I write about a vegetable disease it is because the disease may cause important economic loss. Once in a while, however, a disease I find is more a curiosity than a real problem. So, go ahead and read this article about white mold of watermelon. But please don’t worry about…Read more about White Mold of Watermelon[Read More]
