Downy mildew of watermelon has been observed on watermelon in Knox County in southwestern Indiana. Downy mildew of cucurbits has also been reported in southwestern Michigan on the Indiana border and central Missouri. All cucurbit growers in Indiana should be scouting and managing for downy mildew. The organism that causes downy mildew of cucurbits doesn’t…Read more about Downy Mildew of Watermelon was Observed in Indiana[Read More]
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Greenhouse and Indoor Hydroponics Workshop Date: September 5, 2019 8:00 am-3:00 pm Location: Pfendler Hall- PFEN 241, Purdue University, 715 W State St. West Lafayette, IN 47907 You will learn about best varieties, nutrient recipes, production systems, artificial lighting and temperature needs for hydroponic lettuce produced in greenhouses and indoors. Attendees will tour our latest…Read more about Upcoming Events[Read More]
Even the climate models are confused by this year’s weather. When the August monthly outlook was released (July 31st; national Climate Prediction Center) it showed significant confidence that August would have below-normal temperatures and below-normal precipitation. However, the shorter-range outlooks (that update daily) the last few days, seem to contradict that prediction. Whether it is…Read more about Indiana Climate and Weather Report[Read More]
Recently, I have had a few phone calls about Plectosporium blight on pumpkins. This disease can be difficult to describe in words. However, once observed, Plectosporium blight is easy to remember. Therefore, this article will include photos of the disease. Lesions of Plectosporium blight are most often observed on the stems of affected plants. The…Read more about Plectosporium blight[Read More]
While cantaloupe and pumpkin growers are used to combating powdery mildew in Indiana, watermelon growers may not be familiar with the disease. Occasionally, I observe this disease on watermelon as well. If left uncontrolled, this disease can cause loss of foliage, loss of yield and lower quality fruit. This article will discuss the biology and…Read more about Powdery Mildew of Watermelon[Read More]
Here in Indiana, whitefly problems are rare, but when encountered it is most often in protected ag production (greenhouse or high tunnel) and less often in the field. However, this is the time of year that you may be seeing them in either environment. Whiteflies are not true flies, but rather Hemipteran insects, more closely…Read more about Whitefly Identification and Control[Read More]
Please welcome Dr. Laura Ingwell as she continues her experience in the Department of Entomology as an Assistant Professor in Horticulture Entomology. Laura received her Bachelor of Science in Biology from the University of Wisconsin-Milwaukee in 2006. She received her Masters of Science in Ecology from the University of Rhode Island in 2009 and her…Read more about Welcome Dr. Laura Ingwell[Read More]
Welcome to Dr. Elizabeth Long as she returns to the Purdue Department of Entomology family as our second hire in Horticulture Entomology. Elizabeth received her Bachelors of Science in Biological Sciences from North Carolina State University in 2007 and obtained her PhD in Plant, Insect and Microbial Sciences from the University of Missouri in 2013….Read more about Welcome Dr. Elizabeth Long[Read More]
I have observed this disease in scattered commercial pumpkin and squash fields across Indiana. Symptoms: Bacterial spot causes ⅛-¼ inch angular leaf lesions that are white to light brown in color (Figure 1). These leaf lesions may be accompanied by yellowing (chlorosis). The more important symptom are the lesions on fruit that are scabby to…Read more about Bacterial Spot of Pumpkin[Read More]
This article is modified from Darcy Telenko’s article about field corn in a recent Purdue Pest and Crop newsletter. Southern rust of corn is normally a disease of tropical areas. During summer months, however, the fungus which causes southern rust, Puccinia polysora, may move into Indiana or other Midwestern states. Southern rust has officially been confirmed…Read more about Southern Rust on Sweet Corn in Indiana[Read More]
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