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Weekly vegetable update 2026 - May 14, 2026

Authors: Natalie Hoidal & Marissa Schuh It is dry, great for field work, but a little unnerving. Portions of the state are abnormally dry and a few spots have tipped over into moderate drought, but we are avoiding the drought a lot of the country is in . NOAA’s last release of seasonal precipitation and temperature forecasts are giving an equal chance of above or below average precipitation (we are due for new seasonal forecast releases soon). 10 day forecasts are showing a pretty good chance of rain sometime Sunday through Tuesday for much of the state. Still deciding how to deal with crop residue or an overwintered cover crop? If you have a lot of crop residue in your fields, you have a few options. Check out recent video about methods for terminating cover crops if you’re still deciding what to do with overwintered cover crops like rye, vetch, or winter wheat. The obvious answer is to till residues into the soil if your goal is to plant as quickly as possible. While tilling i...
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Fruit Update - May 14, 2026

 Article written by Madeline Wimmer, UMN Extension Fruit Production Educator.  Apples Growth stage and pest management update: Petal fall Article: Considerations for fruit thinning for normal and cold damage years Fruit thinning at petal fall Article: European red mite (ERM; occasional pest) + Beneficial insect highlight: Predatory mites Grapes Canopy management: Shoot thinning (video link included) Berries Article: Spotted Wing Drosophila parasitoid found in Minnesota Video: Honeyberries/haskap: New video highlighting grower practices UMN Extension Fruit Crop Reporting Tool Apples Growth stage and pest management update: Petal fall Images: Late stage petal fall seen in Zestar! (left) and early stage petal fall in Gala (right) correlates with bloom timing for these two varieties. Photos taken at Sekapp Orchard of Rochester, MN, on May 14, 2026. After full bloom, once pollination window has ended, those apple fruitlets that were successfully pollinated will begin to develo...

European red mite (ERM; occasional pest) + Beneficial insect highlight: Predatory mites

  Article written by Madeline Wimmer, UMN Extension Fruit Production Educator. Images: Managing European red mite (ERM) overwintering eggs is a preventative approach to keeping populations under control, in which ERM eggs are most effectively managed at the ½ inch green growth stage. Left photo credited to University of Georgia Plant Pathology.  Of the three different pest mites affecting apple orchards, European red mite (ERM; Panonychus ulmi ) can be one of the most problematic for apple orchards. Technically a spider mite, ERM are about .42 mm and are a reddish-brown color. Their host range primarily includes plants in the Rosaceae, which includes apples.   ERM overwinter as eggs near tree buds and fruiting spurs and hatch in the spring. The first adult generation of the growing season begins to lay eggs around petal fall. ERM populations go through multiple generations throughout the growing season. Their pest habits are unique: their populations and activity often de...

What to know about the Superior Fruit Innovations™ program

  Article written by Madeline Wimmer, UMN Fruit Production Extension Educator and reviewed by Mara Sanders, UMN Plant Material and IP Logistics Manager, and David Bedford, UMN Fruit Breeder and Researcher The University of Minnesota’s Fruit Breeding program is recognized worldwide for its work on cold climate grapes (ex Frontenac, Marquette, Clarion) and supreme apple varieties like Honeycrisp, SweeTango, and FirstKiss.  It can take decades from the first time a cross (isolated hand-pollination)  is made between two parent plants, to planting seedlings, grafting them, evaluating them, and getting them to the point of nursery production and sales to commercial and backyard growers. This includes the cost of research land, paying researchers and workers to care for trees to name a few.  Images: David Bedford (left), Soon Li Teh (middle), and Matt Clark (right) of the University of Minnesota Fruit Breeding program.  And through these efforts comes licensing program...