The relatively cool weather Indiana has experienced this summer may be responsible for more observations of northern corn leaf blight (NCLB) on sweet corn than normal. The primary symptom is the cigar shaped lesion that ranges from 1 to 7 inches in length (see Figure 1). The lesions may range from tan to gray in color….Read more about Northern Corn Leaf Blight[Read More]
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When used as a verb, to rogue means to get rid of items that don’t conform to a certain standard. In plant pathology, the word rogue is used to describe a technique whereby diseased plants are removed or rogued to slow the spread of disease. I’d like to describe the practice as it might be used…Read more about Roguing as a Tool to Manage Phytophthora Blight of Pumpkin[Read More]
Downy mildew has been confirmed on jack-o-lantern pumpkins in Daviess and Jasper Counties and on acorn squash in LaPorte County. These are the first confirmed reports of this disease on Cucurbita pepo in Indiana in the 2015 season. There are unconfirmed (but reliable) reports of downy mildew on pumpkins in Parke, Washington, and White Counties. This disease has…Read more about Downy Mildew of Cucurbit Update[Read More]
This disease has been observed in northern Indiana on basil sold as a fresh herb. The fungus that causes downy mildew of basil does not overwinter in Indiana; instead, it must blow in from the south. The fungus that causes downy mildew of basil is not the same fungus that causes downy mildew of cucurbits…Read more about Downy Mildew of Basil[Read More]
Late blight has been reported on processing tomatoes in Cass County Indiana. This is a late blight update from when this disease was reported on potatoes and tomatoes in LaGrange County Indiana. The latter outbreak and some disease management tips are reported in the Vegetable Crops Hotline Issue 603 at ag.purdue.edu/hla/Extension/VegCropsHotline/Pages/Latest-Articles.aspx?article=117 This article was originally…Read more about Late Blight on Tomato Update[Read More]
You might remember seeing cation exchange capacity in soil test reports. Recently, I have been asked about what it means. This is one of the important soil characteristics that we need to understand. Firstly, we need to know what cations are. Cations are positively charged ions. There are several. The ones very important for plant…Read more about Cation Exchange Capacity (CEC): What Does It Mean?[Read More]
The Indiana State Department of Agriculture’s (ISDA) Indiana Grown Program is an all-inclusive collaborative initiative to promote Indiana produced agricultural products to Indiana residents, restaurants, grocery stores, farmer’s markets, wholesalers, processors and other retail businesses. In addition, through the Indiana Grown program, the ISDA is establishing a marketing strategy to promote Indiana agriculture nationally as well…Read more about Indiana Grown Seeks Producers for PMA Fresh Summit[Read More]
Beginning Farmer Tours. Free farm tours and networking events sponsored by Purdue Extension and Local Growers Guild. For more information and to register contact the Purdue Extension Education Store at www.edustore.purdue.edu or 888-EXT-INFO. September 8: Growing Places Indy, Indianapolis, IN. Lunch, networking session, tour. Urban produce farm with raised beds, u-pick, and greenhouses. September 14:…Read more about Upcoming Events[Read More]
On July 22, I announced that downy mildew had been observed on watermelon in Knox County in southwestern Indiana. This article in the Vegetable Crop Hotline issue 603, https://ag.purdue.edu/hla/Extension/VegCropsHotline/Pages/Latest-Articles.aspx?article=118, describes the outbreak and management options. Downy mildew has now been reported on cucumber and cantaloupe in Knox and cucumber in La Porte County Indiana and pumpkin in Jasper County….Read more about Downy Mildew Update[Read More]
Catches of corn earworm moths in pheromone traps are gradually increasing. I had 18 in my trap this morning (August 18). The gradual increase is indicative of the local population emerging. We can expect them to continue to gradually increase for most of the remainder of the season. What we have not had is the…Read more about Corn Earworm[Read More]
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