Herbicide Damage

Herbicide damage is any adverse, undesired effect on a plant that is caused by exposure of that plant to a pesticide designed for weed control. Learn symptoms and more in this factsheet.

Degree Day Calculation

Degree Days incorporate temperature and time to quantify the rate of plant and insect development. This useful tool helps predict events such as flowering, harvest, and pest outbreaks.

Phenology

Phenology is a branch of science that studies the life cycles of plants and animals with seasonal changes and weather. Learn more in this factsheet.

Pollinators

Many of our food crops require or benefit from pollination by insects. Learn about common pollinators in Wisconsin and how to attract and support them in your yard and garden in this factsheet.

Reducing Soil pH

Proper soil pH allows plants to efficiently take up nutrients. Learn how to reduce high soil pH in this factsheet.

Landscaping In Spite of Black Walnuts

Black walnut trees can have a dramatic, negative affect on certain plants. To learn more about juglone toxicity and which plants are suceptible, read this article…

Milkweed (Ornamental Plants Toxic to Animals)

To increase monarch populations, people are increasingly planting ornamental types of milkweed and encouraging common milkweed to grow wherever it occurs in uncultivated areas. While milkweed is beneficial to monarch populations, people need to be aware that it is toxic and can be lethal to animals, particularly horses and other equines.

Amazing Flowers

Everyone has a vision of what a “flower” looks like, but plant flowers are extremely variable and come in all shapes, sizes, colors, and configurations. Take a virtual tour of a dozen weird and wonderful flowers, each from a different plant family, and learn about some of their interesting characteristics, pollinators, or uses. No daisies here…

Stinkhorns

Stinkhorns are mushrooms that can appear in mulch, lawns, and areas with bare soil. Stinkhorns do not cause plant disease, and can be beneficial, as described in this factsheet.

Support Extension