About the OSU Extension Service: The Oregon State University Extension Service shares research-based knowledge with people and communities in Oregon’s 36 counties. OSU Extension addresses issues that matter to urban and rural Oregonians. OSU Extension’s partnerships and programs contribute to a healthy, prosperous and sustainable future for Oregon.

Maintaining a moss-free roof takes some effort

After cleaning the shingles, low-toxicity products can be used to kill the moss. But shedding more sun on the roof works more permanently.

Time to perform winter maintenance on apple trees

Dormant sprays help control diseases and insect pests; purning keeps your tree in good shape for producing apples.

Save some bucks by gardening frugally

Saving money in the garden doesn't mean you have to sacrifice what you want -- it just takes a little thought.

Study shows some urban gardens contain too much organic matter

Most gardeners are given the advice to add compost, but that's not always a good idea. Get a test to be sure.

Statewide Outdoor School participation jumps 6%, up to nearly 38,000 students

Eighty-one percent of Oregon’s eligible fifth- and sixth-grade students participated in the statewide Oregon State University Extension Service Outdoor School program in the 2018-19 school year

Watermelon supplements bring health benefits to obese mice

Eating watermelon in the form of powdered supplements helped adult obese mice avoid some detrimental health effects of an unhealthy diet, according to a new Oregon State University study.

Researchers identify successful biological control for destructive fruit fly

A parasitic wasp has shown tremendous potential attacking and controlling spotted wing drosophila – an invasive, destructive fruit fly that costs Oregon growers close to a billion dollars a year.

Christmas tree shopping season is beginning to look a lot like 2018

This year’s Christmas tree shopping season is beginning to look a lot like 2018, with a tight supply and similar prices, according to Oregon State University Extension’s Christmas tree specialist.

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