Trees
All Trees Content

Grasshoppers in Gardens
Due to large populations and dry conditions, grasshoppers are moving into gardens and feeding on whatever they can find. In a normal year, grasshoppers can be a nuisance in a garden, but during an outbreak year, they can present a real threat to gardens, shrubs and small trees.

Cedar Trees and Rangeland Loss
The issue of cedar tree invasion into South Dakota’s rangelands tends to be a regional conversation. There is generally broad agreement among most resource professionals that these trees are in fact changing our landscape in a negative way.
Sioux Falls to Host Emerald Ash Borer Tree Injection Workshop
April 21, 2021
As the season for emerald ash borer treatments nears in South Dakota, state forestry experts want applicators in the Sioux Falls area to be prepared.
Tree Watering Tips for Drought Conditions
There is no precise recipe for how much and how often trees should be watered during a drought. However, there are a few guidelines to follow.

Trees & Drought Stress
Trees require a lot of water to meet their functional needs and long-term shortages can influence their growth and survival.

Campfire Safety in Drought Conditions
During fire season, open fires may be prohibited or otherwise restricted by the regulatory agency in charge of the campground or facility that you are visiting.

Why Are The Tree Leaves Turning Yellow?
Chlorosis, a condition where the leaf veins remain green but the surrounding foliage turns pale green or yellow, is a common occurrence on certain tree species in South Dakota.

Fire Blight
Fire blight is a disease that can infect apples, pears, and certain ornamental species including crabapples, cotoneaster, and mountain ash. Occasionally it may also appear on cherries, plums, Juneberry (also called Serviceberry or Saskatoon), and raspberry. This disease, caused by the bacteria Erwinia amylovora, can damage blossoms, fruit, leaves, shoots, and branches. If it is not controlled, fire blight may kill the entire tree or shrub. Infected tissue cannot be cured, but will need to be removed from the tree to prevent further spread.

Junior Arborist Activity Guide
The Junior Arborist Activity Guide provides objectives, content, equipment and supplies needed to complete 8 modules of arboriculture instruction, helping schools and other educational programs to create a youth arboriculture program of their own.

Emerald Ash Borer Insecticide Treatment Options
Fact sheet about insecticide treatment options for protecting ash trees against emerald ash borer.