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An ash tree branch with ash flower gall damage.

Ash Tree Issues

Ash flower galls are appearing on the twigs of ash throughout the state. The brown to black “balls” hang in clusters beneath the branch shoots. The galls are due to the feeding activity of the ash flower gall mite (Eriophyes fraxiniflora) and this mite only feeds on the male flowers of ash.

Leaves exhibiting aphid damage.

Aphids On Trees

Aphids are appearing on many trees at this time of year and their activity is generally noticed by the abundance of honeydew they excrete on the lower leaves and any plants or objects beneath the tree.

A sample of green leaves with noticable bumps at their bases.

Cottonwood Galls

Just about every year I receive samples of fallen cottonwood leaves with a “bump” at the base and the first one for this year was from Winner. This is the cottonwood petiole gall formed by the feed activity of a very small green aphid.

A grove of trees with bright yellow and orange leaves.

Kentucky Coffeetree

Kentucky Coffeetree (Gymnocladus dioicus) is a medium-sized tree that will fit into many landscapes and provide interest all year with its bark, leaves, flowers, fruit and even great fall color, if weather conditions are right.

A plant with light-colored purple flowers blooming throughout

Baptisia

The plant for this week is Baptisia a.k.a. “false indigo”, “white indigo” and “yellow indigo”. This is a hardy perennial for the Northern Great Plains that is easy to grow, has multiple seasons of interest and lives for many years. They are actually native to the US but usually are found in somewhat warmer climates.

Three bees on a wooden box.

Backyard Biodiversity: Nest boxes for native bees

Many of our native bee species are solitary. In order to ensure that these kinds of bees spend more time in our yards and gardens, it is important to make sure we include places for them to nest.

small brown spotted mites

Check Your Houseplants for Pests

Houseplants are susceptible to a variety of pests. The following article outlines some of the more common household pests, including: spider mites, mealybugs, and scale. We will discuss strategies for scouting out and managing these pests to avoid prolonged damage to your houseplants.

Ages & Stages in the Garden: Ages 9-11

When working with upper elementary youth in a garden consider their physical development and skill level as you develop learning activities. Nine to eleven year olds have better coordination and reaction time by this age, however sometimes dues to growth spurs there can be short-term issues with balance and coordination. Additionally, these children have more body strength and their hand dexterity has increased.

a leafey green plant with bright pink stems

Two Favorite Spring Vegetables

After a long winter with no fresh homegrown vegetables, many gardeners really look forward to that first spring harvest of asparagus and rhubarb.

yellow-orange butternut squash on the vine in the garden

Time To Harvest Those Winter Squash

One of the wonderful things about having a vegetable garden is having access to fresh produce all season long. Now that the growing season is closing down, you likely still have some vegetables left to harvest, particularly the winter squash. The great thing about squash is that they usually store well so they can provide food for several months during the fall and winter.