Training and Pruning Apple Trees

Apples are the most common fruit tree planted in Wisconsin. In addition to providing fruit, apple trees can be a pleasing addition to the home landscape. However, unlike most shade trees, apple trees require annual training and pruning from the time of planting to produce an attractive and productive tree. To learn about the care of apple trees, please click “read more”.

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Winter Salt Injury and Salt Tolerant Landscape Plants

Winter in Wisconsin often means snow and ice. To allow safe travel for pedestrians and motorists, walkways and roads must be kept as ice-free as possible. While snow and ice removal is best done with shovels, snow blowers, and plows, this may not remove all of the snow, and ice can quickly form, leaving slick, hazardous surfaces. Deicing salts are used extensively to melt this ice and snow. To read the entire article, please click “read more”.

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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.

To listen to this Brown Bag segment, click “read more”.

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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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