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Kate Prengaman is an associate editor for Good Fruit Grower, writing articles for the print magazine and website. She earned her bachelor’s degree in biology and environmental science at the College of William and Mary and a master’s degree in science journalism from the University of Wisconsin-Madison.
Kate joined the magazine in 2016. Prior to the Good Fruit Grower, she covered the natural resources beat for the Yakima Herald-Republic and reported environmental stories for the Wisconsin Center for Investigative Journalism.  She lives in Yakima with her husband and baby girl.
Contact her at 509-853-3518 or at and follow her on twitter @kprengaman

My Recent Articles

  • vineyardSheepWeeds_7796-1-feat

Weed eaters

April 24th, 2018|0 Comments

Herbicide resistance pushes California grape growers to try bringing back weed control strategies such as sheep and cultivation.

  • Washington IFTA 2015

New approaches needed for weed control

April 24th, 2018|0 Comments

Herbicide resistance is a threat growers need to take seriously.

  • Bindweed (Courtesy Christian Becker)

Weed worries: Herbicide-resistant species are top of mind

April 24th, 2018|0 Comments

Glyphosate-resistance is primary weed concern for wine grape growers in Washington state.

  • internalBitterPit-WSU-1

High-res Honeycrisp

April 10th, 2018|0 Comments

Cell structure scans offer new insight into why Honeycrisp is so prone to bitter pit.

  • Bees work a cherry orchard in bloom

Protect pollinators while managing diseases

March 27th, 2018|0 Comments

The fungicides needed to control bloom time disease aren’t as harmless to bees as previously thought.

  • beesInCAstorage14818-1

Bees may do better being kept in the dark

March 26th, 2018|0 Comments

CA storage could give bees an edge in the fight against the devastating Varroa mite.

  • appleClickDallabettaNicola-1

Click thinking: High-density success depends on pruning style

March 26th, 2018|0 Comments

Lessons learned in Italy about benefits of click pruning could help U.S. growers.

  • 2018 Washington Winegrowers

The worldwide view of wine from Washington : Video

March 21st, 2018|0 Comments

Speakers at the 2018 Washington Winegrowers annual convention bring big-picture perspective.

  • Pinot Noir harvest

Venture vineyardists

March 21st, 2018|0 Comments

Industry experts offer branding and marketing strategies for grape growers.

  • Compost, Natural Selection Farms, Durfey

Compost decomposed

March 19th, 2018|0 Comments

As raw manure faces food safety scrutiny, compost has become a hot commodity.

  • WA 38, cosmic crisp

Legal battle over Cosmic Crisp unlikely to affect availability of new trees

March 16th, 2018|0 Comments

Sources describe how dispute began

  • swdUpdate-OneTimeUse-1

New mindset for managing spotted wing depredation

March 14th, 2018|0 Comments

High levels of pest pressure are the new reality for Michigan tart cherry growers.

  • Spotted lantern fly

On the lookout for spotted lanternfly

March 14th, 2018|0 Comments

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This beautiful bug is bad news.

The spotted lanternfly, an Asian sap sucker that feeds on

  • Apple maggot (Rhagoletis pomonella) (Courtesy Joseph Berger)

Apple maggot quarantine saves $500 million a year

March 9th, 2018|0 Comments

New economic analysis puts a price tag on protecting Washington's maggot-free tree fruit regions.

  • WSGS Viticulture field day on August 10, 2017

More good mites wanted this year

March 5th, 2018|0 Comments

Biocontrol and low-pesticide systems appear to be working in controlling mites in vineyards.

  • Julia Kock at Klipsun Vineyard

2017 Washington wine grapes fetched high prices

March 2nd, 2018|0 Comments

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Washington wine grape growers harvested 227,000 tons in 2017, according to the Crush Report released

  • Head

Washington’s organic apple acreage grew 37 percent

February 28th, 2018|0 Comments

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Organic apple acreage certified in Washington in 2017 exceeded expectations as certified orchards grew 37

  • Powdery mildew in wine grapes

Resistance rising for powdery mildew

February 26th, 2018|0 Comments

Last year’s weather made was especially challenging in battling disease in Western U.S.

  • Head

Taking the fight to fire blight

February 19th, 2018|0 Comments

Risk is higher in Washington this season for deadly orchard disease. Here’s what you need to do.

  • Mustard seed meal trial

Researchers are rethinking replant

February 18th, 2018|0 Comments

Field trials underway to see if biological alternatives to fumigation can be a practical option for apple growers

  • peachRootstocks-toedit

Peach rootstock trial tests options for size control

February 12th, 2018|0 Comments

Researchers start with the roots to shrink trees.

  • 2018 Washington Winegrowers

Washington Winegrowers honor longtime industry leaders

February 6th, 2018|0 Comments

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The Washington Winegrowers Association honored four longtime industry leaders on Tuesday during a lunch banquet

  • Nematicide study

On the hunt for nematodes

February 6th, 2018|0 Comments

Washington researchers launch big-picture project to figure out how best to protect vineyards against root parasites.

  • palissageWrap-1-feat

Using palissage to slow vigorous vines

February 5th, 2018|2 Comments

Tucking or wrapping shoots to slow growth offers promising alternative to hedging for canopy control in Cornell trials.

  • OSU Hood River extension center centenial celebration

After loss, important postharvest research continues

January 30th, 2018|0 Comments

Colleagues carry on cherry and pear postharvest projects of the late Yan Wang of Oregon State University, with some intriguing new findings.

  • WSU cherry cracking trials

Researchers discover a coat of armor for cherries

January 30th, 2018|0 Comments

A thin film of gum acacia shows promise to prevent splitting in packing house trials.

  • MISweetCherry-6724rc-1

Michigan growers go local with cherries

January 30th, 2018|0 Comments

Growth looks promising in Michigan's fresh cherry market.

  • A-dynamic-increase-in-apple-storage

The challenges of storing organic apples

January 24th, 2018|0 Comments

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Last season, Washington harvested 13 million boxes of organic apples and even more are expected

  • Rootstock trial tour in N. Washington.

Growing big with Genevas

January 17th, 2018|0 Comments

Third-year Washington trial offers new insight into cropping capabilities.

  • Jill McCluskey, an economist at Washington State University

Going green with reds and whites

January 17th, 2018|1 Comment

Will the investment in eco-certification for your vineyard pay off? It depends.