By Margaret Bayne, OSU Extension Service Staff-retired, OSU Master Gardener

Floribunda Rose ‘Mardi Gras, Oregon State University

Plant lists that shouldn’t exist. (Linda Chalker-Scott, WSU;

The contrarian rosarian–debunking rose mythology. (Jim Downer, U of CA;

Why insects are more sensitive than they seem. (Zaria Gorvett, BBC)

NEW PUBLICATION: A PNWBBA Guide to Habitat Management for Bumble Bees in the Pacific Northwest. (Downloadable PDF) (Rich Hatfield, Kurt Merg, and Joel Sauder, Xerces Society)

NEW PUBLICATION: The Pacific Northwest Bumble Bee Atlas: Summary and Species Accounts-A collaboration between the Xerces Society, Idaho Department of Fish and Game, and Washington Department of Fish and Wildlife. (Downloadable PDF) (Rich Hatfield, Leona Svancara, Leif Richardson, Joel Sauder, and Ann Potter; Xerces Society)

Honey bee in flight in front of honeycomb.
Honey bee. Photo: Lynn Ketchum © Oregon State University

Genetic Analysis Reveals the Origins of the World’s Most Common Honeybee Species.  “The western honeybee hailed from western Asia seven million years ago, ending the contentious debate over where these buzzy critters originated.” (Rasha Aridi,

Myth Busting for Extension Educators: Reviewing the Literature on Pruning Woody Plants.
(Linda Chalker-Scott, WSU & Jim Downer, U of CA; Journal of the NACAA)

Prevalence of Different Horticultural Taxa of Ivy (Hedera spp., Araliaceae) in Invading Populations. “‘English’ ivy (Hedera spp.) is a complex of invasive plant pests that are separated into several distinct taxa. To better understand the invasion by ivy of Pacific Northwest native forests, we investigated the taxonomic identity of 58 selected invasive populations in the Pacific Northwest.” (Midori M. Clarke, Sarah Reichard, Clement W. Hamilton; via

Dorsal view (above) Giant Hornet, with wings spread
Giant Hornet – Oregon Department of Agriculture

Symptoms and Signs for Plant Problem Diagnosis – An Illustrated Glossary.  A great resource for diagnosticians! (Janna Beckerman and Tom Creswell, Department of Botany and Plant Pathology, Purdue University)

“Your Christmas tree may be adorned with lights and glitter. But 25,000 insects, mites, and spiders are sound asleep inside the tree.” (University of Bergen via

Why Giant Hornets Rub Their Abdomens on Beehives Before Attack. (Paige Embry,


Basics of Tree Identification-Twigs (Mo_Plant_Daddy_ via

Basics of Tree Identifcaiton-Leaves (Mo_Plant_Daddy via

Binomial Nomenclature: sp. vs. spp. (Mo_Plant_ Daddy via

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