Dealing with Chlorosis Yellowing leaf tissue is result of chlorosis, said a University of Illinois Extension horticulture educator.
Decline of Trees and Shrubs If your tree is not looking healthy, look at this fact sheet before you call the Master Gardeners at UI Extension - 663-8306
Drought and Heat Stress in Trees Scorched tree leaves caused by drought or heat stress can sometimes be confused with diseases, said a University of Illinois Extension horticulture educator.
Elm Leaf Beetles Elm leaves may be dropping as the result of feeding by elm leaf beetles.
Galls on Leaves Bumps or galls are being spotted on leaves, twigs, roots and flowers of many plants. Plant galls often appear as balls, knobs, lumps, or warts of various shapes, sizes and colors.
Illinois Big Tree Register Updated The Illinois Big Tree Register, formerly administered by the Illinois Department of Natural Resources, Division of Forestry, is now coordinated by the, Department of Natural Resources and Environmental Sciences at the University of Illinois at Urbana-Champaign. Jay Hayek, Extension Forester and Illinois Big Tree Program Coordinator, has brought the program with him from his previous state forestry position, and will be continuing his efforts to build and update this important program.
Illinois Forestry Trees are Illinois' most valuable renewable natural resource. A new Illinois Forestry website developed by Jay Hayek, Visiting Extension Specialist, Forestry contains a wealth of information on tree planting, forest management, urban and community forestry issues, Illinois forest facts and much more. An interesting section is the Illinois Big Tree Register that lists the largest trees in Illinois and their locations.
Illinois Tree Selections Buying a tree is a major investment. Here is help in choosing the best tree for your location.
Immediate Tent Caterpillar Control Will be Effective Remember the caterpillars that made silk tents in the twig crotches and ate the leaves of your crabapple tree last spring? These insects, the eastern tent caterpillar, have hatched and may be feeding on your trees.
Protecting New Evergreens Newly-planted evergreens are more prone to being dehydrated through the winter, said a University of Illinois Extension horticulture educator.
Prune Flowering Trees and Shrubs Now Now that most of our spring flowering shrubs and trees are finished blooming, it is time to prune them so they will flower on schedule next spring.
Sapsuckers Damage Trees The yellow-bellied sapsucker, a woodpecker, damages trees in early spring while migrating north for the summer. Find out how to reduce damage from these birds.
Secret Life of Trees Learn all about the parts of a tree and why trees are important to us!
Summer Planting of Trees and Shrubs Many nurseries, garden centers and discount stores offer trees and shrubs at reduced prices during the summer months. Many of the plants have potential in the yard, but homeowners should take some precautions to make sure they get their monies worth.
Trees are Terrific! Travel with Pierre as you learn all about how trees are important to us!
Trees Slow to Adapt Trees appear to respond slower to climate change than previously thought.
Understanding Those Unsightly Oak Galls A common occurrence on oak trees in the area is the formation of unsightly gall growths or deformities on leaves, twigs, flower, buds, bark, stems and even acorns and roots. Most galls are harmless to trees. However in Illinois, both the horned and gouty oak galls can be debilitating, and even kill younger trees. In recent years these two types of galls have been increasingly present.
