Identify and Manage Ash Yellow in Forest Stands and Home Landscapes
http://www.na.fs.fed.us/spfo/pubs/howtos/ht_ash/ht_ash.htm
Current knowledge supports the theory that ash decline can result from various causes, and ash yellows can be, but is not always, a causal factor.
(Added: 26-Jul-2002 Hits: 7 Rating: 0 Votes: 0) Rate It
Identify and Manage Dutch Elm Disease
http://www.na.fs.fed.us/spfo/pubs/howtos/ht_ded/ht_ded.htm
Because elm is so well-suited to urban environments, it continues to be a valued component of the urban forest despite the losses from DED. The challenge before us is to reduce the loss of remaining elms and to choose suitable replacement trees for the ones we cannot save.
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Identify, Prevent, and Control Oak Wilt
http://www.na.fs.fed.us/spfo/pubs/howtos/ht_oakwilt/toc.htm
Oak wilt is an aggressive disease that affects many species of oak (Quercus spp.). It is one of the most serious tree diseases in the eastern United States, killing thousands of oaks each year in forests, woodlots, and home landscapes.
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Maintaining Tree/Turfgrass Associations: A Plant Health Care Approach
http://www.clemson.edu/extfor/urban_tree_care/forlf22.htm
The common association of trees and turf in landscapes is plagued by competition for scarce water, nutrient, and sunlight resources. In the following article you will find an explanation of the problems that arise from this incompatibility and how to overcome them to achieve healthy, attractive trees and turfgrass.
(Added: 18-Jul-2002 Hits: 4 Rating: 0 Votes: 0) Rate It
Managing Trees and Turfgrasses
http://www.utextension.utk.edu/publications/spfiles/SP535.pdf
Trees and turfgrasses commonly share the same landscape. Both require space, light, water, air, essential nutrients, and the appropriate temperature for growth, but there is often a stuggle to maintian quality turf under healthy trees.
(Added: 18-Jul-2002 Hits: 3 Rating: 0 Votes: 0) Rate It
Methods for Root Control
http://www.forestry.uga.edu/warnell/service/library/index.php3?docID=155
There are a number of root growth control tools and techniques available today. There are eight primary forms of tree root growth control based upon limiting root growth processes, resource availability, and soil features. Below are listed primary growth
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Mulching for a Healthy Landscape
http://www.ext.vt.edu/pubs/envirohort/426-724/426-724.html
For as long as trees have grown in forests, leaves and needles have fallen to the ground and formed a natural protective layer over the soil. This same protection can be given to the plants in our landscapes by mulching.
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Oak Decline
http://www.state.tn.us/agriculture/forestry/lit/16.pdf
Oak decline is a gradual weakening of the tree over several years
followed by death. Outer branches die and leaves grow only near
the trunk. Oak decline is not well understood but is thought to be
a complex mix of tree age, site, location, weather, soils, fungi and
insect attacks.
(Added: 25-Sep-2003 Hits: 3 Rating: 0 Votes: 0) Rate It
Oak Decline
http://www.na.fs.fed.us/spfo/pubs/fidls/oakdecline/oakdecline.htm
Periodic occurrences of decline and death of oaks over widespread areas have been recorded since 1900. These outbreaks, variously named oak decline, oak dieback, or oak mortality, are caused by a complex interaction of environmental stresses and pests and given the name oak decline.
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Oak Wilt
http://www.na.fs.fed.us/spfo/pubs/fidls/oakwilt/oakwilt.htm
Oak wilt, caused by the fungus Ceratocystis fagacearum, kills oak trees. It has been found in 21 States, with considerable damage occurring in the Midwest. It was first recognized as an important disease in 1944 in Wisconsin (fig. 1) where, in localized areas (less than 100 acres (40.4 ha)), over half the oaks have been killed. Surveys in eight Wisconsin counties showed that about 11 percent of the annual growth increase of oak forests was offset by mortality caused by oak wilt.
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