Garden Spiders

Spiders are good guys to gardeners, since they feed on other insects. There are a few main groups that are commonly found in gardens. To learn more about these fascinating arthropods, read this article…


There are many species of scales and they are difficult to control because of their protective covering. Learn to identify and manage scales in this factsheet.


White blobs of bubbles on plants are created by the insects called spittlebugs, and their foam helps protect them. To find out more about these creatures, read this article…

Cyclamen and Broad Mites

Cyclamen and broad mites are xtremely small and can infect plants in greenhouses and gardens. Learn the symptoms and management options in this factsheet.

Scale Insects

Scale insects are often overlooked because they are immobile and look like small bumps that just might be plant parts. Learn more about this group of inconspicuous and atypical insects in this article…


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.

Lily Leaf Beetle

Lily Leaf Beetle, also known as red or scarlet lily beetle, can cause significant damage to native and cultivated true lilies. Learn how to identify and manage this insect in this factsheet.

Common Milkweed Insects

Almost everyone knows that monarch butterfly caterpillars live only on milkweeds, but did you know there are many other insects that feed exclusively on these plants? From other caterpillars to bugs and beetles, there are several types of insects that have developed ways to avoid being affected by the toxins in milkweeds and have become specialized feeders on these plants. Lean more about some of the most common insects found on milkweed in this article…


Sawflies are a group insects related to wasps. The plant-feeding larvae often look like caterpillars or slugs, and large numbers cause noticeable defoliation on their hosts. Learn more about sawflies in this article…

Spotted Lanternfly

Spotted lanternfly (SLF) is an invasive planthopper native to Asia. Though not yet found in Wisconsin, SLF has potential for severe damage on a large plant host range. Learn what to watch for with this new pest.

Common Columbine Pests: Columbine Leafminer and Columbine Sawfly

If you have columbines in your garden, you likely have seen squiggly white trails or blotches on the leaves or had the entire leaf devoured at one time. These are significant as cosmetic problems, but generally have little impact on the plant’s health. Learn more about the life cycle of the two insects that cause these problems and how to deal with them in this article…

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