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Late Season Disease Management in Grapes

September 20, 2018 - From Issue:
By:
dmg

We are seeing a lot of powdery and downy mildew on grapes this year. These diseases often get established in the late season after harvest. It is important to maintain healthy foliage all the way until frost to maximize winter hardiness. So managing these diseases is important in years like this. Growers should consider a late season application of fungicides to keep these diseases under control to protect the foliage and assure adequate cold acclimation. Downy can be controlled after harvest (when PHIs are no longer a concern) with phosphorous acid products, mancozeb, captan or one of the newer products such as Presidio, Ranman or Zampro. However, none of those fungicides will control powdery mildew (which is much worse in our plantings). So a tank mix including one of the above with a DMI fungicide such as Rally or Tebuzol would be a good approach. There are several other options[Read More…]

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Indiana Grown for Schools

September 20, 2018 - From Issue:
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I wanted to let you know that ISDA/IG was recently awarded a grant in partnership with the Indiana State Department of Health, Indiana Dept of Education and Purdue Extension to create an all-inclusive local food sourcing guide for schools called Indiana Grown for Schools: School Food Service Resource Guide. This 2 year project will start with gathering information from Indiana farmers, producers and distributors then compiling it into a county by county guide that will be dispersed to all schools in the state of Indiana. Needless to say, we are pretty excited about how many people will be positively impacted with this project. For more information about the grant to promote locally sourced foods in schools, click here: https://calendar.in.gov/site/isdh/event/state-health-department-awarded-grant-to-promote-access-to–indiana-sourced-food-in-schools/ In order to have as many participants as possible, I am reaching out to Indiana Grown partners to ask for them to share this survey within their network. To make this program successful,[Read More…]

Upcoming Events

September 20, 2018 - From Issue:
By:

September 24, 2018 Purdue Fall Winegrape Workshop From Vineyard to Winery Registration required, contact Jill Blume blume@purdue.edu September 28, 2018 Produce Safety Alliance Grower Training Southwest Purdue Ag Center, Vincennes, IN Contact Scott Monroe, 812-886-0198 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

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Harvest Continues

September 20, 2018 - From Issue:
By:
Apple Honeycrisp bitter rot sporulating

As harvest continues, so does the summer rot saga, especially bitter rot. Multiple orchards are reporting significant to complete loss of Honeycrisp throughout the Midwest, in addition to other varieties. Honeycrisp is by far the worst hit, but its seems that Golden Delicious, Granny Smith, Cameo, Ida Red, Empire, Fuji and Gala have had problems in the past. If you are having problems on other varieties, please let me know. We have a trial underway to see if a preharvest application of captan or Merivon helps improves long-term storage options. I’ll have the data to you for the winter horticultural congress in Indianapolis.

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Crop Conditions

September 20, 2018 - From Issue:
By:
pf fruit

Apple harvest is ongoing with Pixie Crunch being picked this week. Grape harvest continues as the warmer conditions hasten ripening. Most growers are getting into late season varieties. Powdery mildew on grapes is worse than we’ve seen it in quite a while. Primocane blackberry harvest continues and most cultivars are still blooming so there is potential for another month of harvest. Hopefully cooler weather will improve fruit quality. Red raspberry harvest is about over. Paw paw harvest is on-going as warm temperatures hasten fruit drop. Dr. Rick Foster spoke to the Hort 318 class this week about managing corn ear worm. The class also planted a fertilizer trial with cabbage, cauliflower, peas and beets.    

Crop Conditions

August 31, 2018 - From Issue:
By:
blackberry

Grape harvest is underway for early and mid-season varieties. Downy and powdery mildew are showing up in vineyards. Table grapes have been especially nice this year. Primocane bramble harvest is also underway. Surprising low number of spotted wing Drosophila have been found in grapes or brambles. Frequent rains are very unwelcome as they generally have a negative effect on fruit quality in both grapes and brambles. Gala and Honey Crisp apples are being harvested. Weeds and row middle covers are growing excessively with all the recent rains.

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Grape Harvest and Rain

August 31, 2018 - From Issue:
By:
rotting grapes

2018 is looking a bit like 2016 with all this late summer rain. We’ve had statewide rainfall each of the past 5 weeks. Most unwelcome! Sour rot and Ripe rot are becoming common in our research trials and vineyards around the state. Early ripening thin-skinned varieties are especially prone to skin splitting and cracking due to rain. Once opened, the berries are quickly invaded by yeasts, bacterial and fruit flies. Sour rot with its characteristic vinegar odor is the end result. There is nothing a grower can do to stop the rain, but there are some approaches to reducing sour rot. Canopy management is an important aspect for many varieties. Sprays of insecticide to control fruit flies plus an antimicrobial such as Oxidate or Fracture have shown some success. Best results occurred when sprays were started at 15 Brix. Sour rot is mainly a concern on the thin-skinned, tight cluster[Read More…]

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Yellows and Bitter Pit

August 31, 2018 - From Issue:
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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…]

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Upcoming Events

August 31, 2018 - From Issue:
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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  

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Upcoming Events

August 10, 2018 - From Issue:
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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

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