Promethea Moth

Promethea Moth

This moth has a wing spread of 2.5 to four inches, the females averaging a little larger than the males. The female promethea resembles the cecropia to some extent although it is much smaller. Both have an eye spot near the tip of the front wing and a white mark near the middle of each wing. However, the female promethea is a richer red-brown than the cecropia; the male promethea is dark brown to nearly black and lacks the white marks. The male also has the unusual habit, for a saturniid, of flying in the late afternoon. The rest of the saturniids are only active after dark. To view the full publication, click “read more”.

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Why Woody Plants Won’t Flower

Dr. Laura Jull, Associate Professor and Extension Specialist for Woody Ornamentals discusses all the possible causes of why trees and shrubs may not flower.

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Iris Borer

Iris borer is the most serious pest of iris in Wisconsin. Iris plants attacked by iris borer will discolor, wilt, and die during late June and July. On close examination of affected plants, a pinkish-white caterpillar can be found feeding on the inside of rhizomes. For more information, click “read more”.

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Rose Chafer Beetle

Skeletonizing of the leaves of roses, raspberries, grapes, fruit trees, and many other cultivated trees and shrubs may be caused by the adult rose chafer, Macrodactylus subspinosus (Fabricius). Adult beetles are attracted to flower blossoms, particularly roses and peonies. Damage occurs in June and tends to be most severe in areas of light sandy soil, which is preferred by the larvae. Heavy of clay soils hamper rose chafer growth and development. Click “read more” to view the factsheet.

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Growing Degree Days and Crab Grass Control

Dr. Doug Soldat, UW-Extension Turfgrass Specialist, discusses the issues of this spring’s weather and the impact on controlling crabgrass.

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Growing Tomatoes in Containers

Don’t have room to grow tomatoes? Ann Wied, Consumer Horticulture Educator for Waukesha County UW-Extension offers advice to get a plant going in a container. Click “read more” to listen to this Brown Bag episode.

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