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

Watch leaves change color in a matter of seconds.  “A new time-lapse video of over 6,000 leaf photos reveals the biology behind fall foliage.  As foliage darkens in the fall, the pigments within the plant matter break down and transform.” (Emily Toomey,

Find out where the fall foliage will be at its peak across the country.(Natalie B. Compton,

How Plants Measure Their CO2 Uptake.  “Plants face a dilemma in dry conditions: they have to seal themselves off to prevent losing too much water but this also limits their uptake of carbon dioxide. A sensory network assures that the plant strikes the right balance.

Watch the four finalist videos in the 2019 YouTube your entomology contest.(

Exposed tree roots.
Exposed tree roots. Michael Hoelzl/ Creative Commons

Great Tree Root articles with links to resources: SelecTree: Right tree right place. (selectree.calpoly)

Tree roots and foundation damage. (The Morton

Trees are not the root of sidewalk problems. (T. Davis Sydnor1, et al; Journal of Arboriculture)

Soil’s Microbial Market Shows the Ruthless Side of Forests.  “In the ‘underground economy’ for soil nutrients, fungi strike hard bargains and punish plants that won’t meet their price.” (Gabriel Popkin,

Daisies that close at night have camouflaged petals to protect them from herbivores. (

Professional credentials and gardening expertise: Entomologists (Colby Moorberg, More info:

Tree and shrub sampling for disease diagnosis.  Watch the video and learn  what makes a good sample for diagnosis.” (NC State U via

A brown rat eating seeds from ground.
Rat, OSU

Tips for keeping rats out of home and garden. (Kym Pokorny, OSU; source: Dana Sanchez, OSU)

Could biological clocks in plants set the time for crop spraying?  “Plants can tell the time, and this affects their responses to certain herbicides used in agriculture according to new research…” (Dr. Antony Dodd, University of Bristol)

See the microscopic wonders of herbs!  “A photographer reveals the intricacies of kitchen herbs. The result is otherworldly.” (Rob Dunn,; photos by Martin Oeggerli)

European honey bee, gathering pollen from flower, with large, light yellow pollen sacks on hind legs.
European Honey bee, University of Florida

Surprise…bees need meat!Ask an entomologist what makes a bee a bee, and you’ll likely get some version of “bees are just wasps that went vegetarian.” New research shows that isn’t true. Bees are actually omnivores, and their meat is microbes.” (Paige Embry,

The journey of pollen.  “Kiel research team deciphers adhesive mechanisms in pollination.” (Kiel University)

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