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Trees

All Trees Content

Annual trials garden at McCrory Gardens
May 26

Garden Hour

Make the most of your garden and landscaping with weekly insights and ideas from our team of experts.

tall trees in the Black Hills

Tree Issue Treatments

Commonly available in pesticides for Conifer and Broadleaf disease, disorder, insect and mite treatment options.

Christmas cactus plant in full bloom with bright-pink, tubular flowers.

SDSU Extension to host off-season Garden Hour series

September 09, 2025

South Dakota State University Extension will continue its popular Garden Hour series during the off-season with webinars every other month.

Three chokecherry trees exhibiting various x-disease symptoms on their foliage.

X-Disease in Chokecherries

X-disease is the name given to a set of diseases caused by a strain of the bacteria “Candidatus Phytoplasma pruni” that primarily affects stone fruits. Infected plants will typically display yellowing or reddening of their leaves by mid summer.

Bergamot flower in a field being pollinated by a honey bee

Managing Forests for Pollinators

Fact sheet on the importance of managing Black Hills forests for pollinators.

Tree lined hiking trail at Cathedral Spires

Limber Pines of the Cathedral Spires: A Unique Tree

Fact sheet on the history, status and threats of limber pines.

Multiple d-shaped holes are shown on a tree trunk

SDSU Extension to host emerald ash borer meetings

June 25, 2025

South Dakota State University Extension will host public meetings about the emerald ash borer in Watertown and Milbank following the insect’s discovery in those communities.

Atrazine carryover injury to eastern redcedar seedling

Herbicide Carryover and Planting Bare-Root Tree Seedling in New Windbreaks

Guidelines on herbicide carryover when planting bare-root tree seedlings in new windbreaks

Three bright red and green apples ready for harvest

Brookings Master Gardener donating apple trees to local youth

March 26, 2025

A Brookings-area Master Gardener is donating apple trees to local youth for the sixth annual Fruitful Children Project.

silver maple tree

Tapping Maples for Sap

Fact sheet on how to tap maple trees for sap.