Articles from 2018

103 articles found.

July 17-18, 2018 Indiana Winery and Vineyard Association Summer Meeting  Brown County Inn, Nashville, IN Contact https://indianawinevine.org/events to register 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 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



By now almost everyone has heard about dicamba, the volatile growth regulator herbicide that has garnered so much attention the past couple of years. It is being used over the top of dicamba-tolerant soybeans on thousands of acres in the state this year. We are trying to keep track of off-target damage so we would like to hear from growers that see any typical symptoms. Grapes are one of the most sensitive crops to dicamba, though there is a wide range of sensitivity among varieties. But they are not the only fruit crops that are sensitive. Raspberries, blackberries, blueberries, and tree fruit are also sensitive. Dicamba typically causes upward leaf rolling on new growth (see pictures below). If you see this type of damage in your fruit plantings, please contact your local Purdue Extension Educator or one of the specialists that write this newsletter. The more we know about the[Read More…]


Garwood Orchard

Thanks to all members of the Garwood family and staff who hosted us for the summer field day last week. Growers were inspired by the excellent job Garwoods do with fruit and vegetable production and marketing. The fruit, vegetable and farm marketing industries in the state were well represented, and all in attendance appreciated members of the Garwood family sharing their many successes and a few challenges along the way. Thanks to Brian and all members of the Garwood family and staff for their hospitality. Sincerely, Peter Hirst  


This was a very short year for strawberries due to the record warmth in May. By now, most harvest is over. As soon as harvest is done, it’s time to begin the renovation process. Matted row strawberry plantings must be renovated each year to establish new crowns for the following year’s crop. For best results, renovation should be started immediately after the harvest is completed to promote early runner formation. This is especially important in the northern part of the state with its shorter growing season. The earlier a runner gets set, the higher its yield potential. Growers should begin renovation as soon as the last marketable berries are harvested. Delaying renovation is one of the most common mistakes growers make. Renovation should be completed by the end of July in normal years. The following steps describe renovation of commercial strawberry fields. Weed control: Post emergent application: Annual broadleaf weeds[Read More…]


Now that we are past fruit set, it is easy to tell what level of crop we are carrying. With the fairly extensive winter injury this year, many varieties will have a light crop borne on secondary or tertiary shoots. Little if any crop control will be needed in those. However, many of the plantings I’ve seen have a very good crop and some crop control will be necessary to balance the vines. A crop load ratio (yield to pruning weight) of 8 to 12 is a good rule of thumb for vine balance. This means we need to leave only enough clusters to produce 8 to 12 lb of fruit on low to medium vigor vines with 1 lb of prunings. For large clustered varieties such as Vidal and Chambourcin, clusters can weight 0.40 lb. So 10 clusters will contribute 4 lb of yield and we would need 25[Read More…]


Figure 1. The branch stub serves as a wound that enables a pathogen, in this case, Nectria spp., to infect. Photo by Janna Beckerman.

Diseases that affect the twigs, branches, and the main trunk of a tree are referred to as cankers or blights. Canker diseases  can be a serious problem in the orchard, vineyard, berry or bramble patch when they are not properly managed, and even when they are. All woody plants can be infected by canker pathogens. Cankers appear as a general sunken area of darkened tissue on the twigs or branches, often surrounding a branch stub(Fig. 1). Many canker pathogens produce perithecia, which contain sacs of spores (asci) that forcibly release the spores when the conditions are right. The perithecia are easy to find on the surface of the canker (Figure 2). As the canker grows, the twig or branch may become girdled, causing the wilting and death of the leaves past the point of infection on the tree. On stone fruit, this can cause gummosis, too (Fig. 3). What causes[Read More…]