Articles from 2018

103 articles found.

Susan Brown of Cornell probably said it best: “The performance and attributes of Honeycrisp are varied and can be grouped under the heading, ‘The good, the bad, and the ugly.’ The ‘good’ refers to a great name for marketing and excellent texture, crispness, and juiciness. The ‘bad’ refers to coloring problems, appearance defects, and susceptibility to an undiagnosed leaf dis- order. The ‘ugly’ refers to bitter pit, scald, soft scald, and a tendency to ferment due to skin permeability problems.” More than 25 years after the release of Honeycrisp, we still don’t have definitive answers. We are already experiencing numerous reports of Honeycrisp (and other apple) yellows this year (Fig. 1a,b,c). This disorder is a genetic peculiarity of Honeycrisp (and apparently a few other varieties) and is believed to be caused by excessive buildup of carbohydrates in the leaves (Snyder-Leiby and Wang, 2008). Yellowing is often most severe on trees[Read More…]


September 5, 2018 Greenhouse & Indoor Hydroponics Workshop Purdue University, PFEN 1159 & Purdue Horticulture Greenhouse Contact Lori Jolly-Brown ljollybr@purdue.edu Register here: https://tinyurl.com/yaxd4k2z September 24, 2018 Purdue Fall Winegrape Workshop From Vineyard to Winery. Registration info and itinerary coming soon! Save the date! Contact Jill Blume blume@purdue.edu October 17, 2018 Indiana Flower Growers Conference Daniel Turf Center Contact Lori Jolly-Brown ljollybr@purdue.edu January 8, 2019 Illiana Vegetable Growers Symposium Teibel’s Family Restaurant, Schererville, IN Contact Liz Maynard emaynard@purdue.edu https://ag.purdue.edu/hla/Extension/Pages/IVGS.aspx February 12-14, 2019 Indiana Hort Congress Indianapolis Marriott East Indianapolis, IN Contact Lori Jolly-Brown, ljollybr@purdue.edu or 765-494-1296 http://www.inhortcongress.org  


August 30, 2018 Small Farm Education Field Day  Purdue Daniel Turf Center Contact Lori Jolly-Brown, ljollybr@purdue.edu or 765-494-1296 Register here: http://www.cvent.com/d/hgqx6g September 5, 2018 Greenhouse & Indoor Hydroponics Workshop Purdue University, PFEN 1159 & Purdue Horticulture Greenhouse Contact Lori Jolly-Brown ljollybr@purdue.edu Register here: https://tinyurl.com/yaxd4k2z September 24, 2018 Purdue Fall Winegrape Workshop From Vineyard to Winery. Registration info and itinerary coming soon! Save the date! Contact Jill Blume blume@purdue.edu October 17, 2018 Indiana Flower Growers Conference Daniel Turf Center Contact Lori Jolly-Brown ljollybr@purdue.edu January 8, 2019 Illiana Vegetable Growers Symposium Teibel’s Family Restaurant, Schererville, IN Contact Liz Maynard emaynard@purdue.edu https://ag.purdue.edu/hla/Extension/Pages/IVGS.aspx February 12-14, 2019 Indiana Hort Congress Indianapolis Marriott East Indianapolis, IN Contact Lori Jolly-Brown, ljollybr@purdue.edu or 765-494-1296 http://www.inhortcongress.org


Grape: Full veraison on most varieties

Apple harvest has begun with early varieties still being harvested. A lack of cool nights has delayed red color development but many varieties are still developing acceptable red color. Quality generally looks good.  


Fig. 1. Bitter pit and lenticel rot often appear at the calyx end of the fruit. Photo by Janna Beckerman

With weird weather often comes weird physiological disorders (on top of our summer fruit rots). Often confused with hail injury, disease or insect damage, these physiological disorders are marring the appearance of many apples. Symptoms of bitter pit include circular or even irregular sunken spots on the fruit surface, beneath brownish or streaked dead regions (Fig. 1). Note that the damage can be separated from the skin surface. Symptoms may be mistaken for hail damage, or any of the below problems. A key diagnostic feature is that hail usually affects only one side of the fruit, whereas bitter pit is more severe on blossom end of the fruit. Some varieties, like Honeycrisp, are more prone to this disorder, whereas hail will impact (literally) all varieties of fruit. Bitter pit can show up throughout the orchard, not just the edges. Cork spot is another physiological disorder affecting outer portion of the[Read More…]


With harvest around the corner for many fruit crops, I thought this would be a good time to remind readers about our email lists. Various forms of social media is used by just about everyone in today’s society.  While Facebook and Twitter are much more commonly used than email, there is still a place for email lists. Mail lists continue to be a successful communication tool for groups of people. The way a mail list works is that people subscribe and then have the authority to post messages to the list. All other subscribers on the list receive the messages. One message can be sent to hundreds of readers at once. Replies to messages on a mail list can either go only to the sender of the message or to the entire list. Purdue HLA Extension maintains two mail lists for users. The “Fruitveg” list is for all fruit and vegetable growers, farm[Read More…]


Grape harvest is just about to get started in the southern part of the state. Growers will start harvesting early varieties next week. Most varieties are slightly ahead of normal this year. In Lafayette, early varieties are at full veraison and should be ready to harvest in the next couple of weeks. We generally harvest early varieties such as Brianna, Edelweiss and Prairie Star about the third week of August and many other early varieties starting the first week of September. Depending the weather for the next couple of weeks, we might be a bit early this year. Fruit quality overall is very good. The cooler conditions lately have favored fruit quality. With wine grapes, all fruit of a given cultivar is typically harvested from the vineyard or block at a single time to coordinate winery activity and to reduce costs. It is important to plan carefully so that the[Read More…]