Natural Resources
|
|
||||
|
Natural Resources |
|
||||
|
city government news & events about apple valley employment resources |
Departments > Natural Resources > Common Questions | |||||||||||||||
|
Common Questions The best time to prune most species of trees, including your oak tree, is during the winter months. Pruning your oak tree during this time will help avoid potential problems associated with oak wilt. It is very important that you do not prune your oak tree between April 15 and July 1, or commonly referred to as the tax day to the fourth of July. More information>>> How much of the tree roots can be disturbed before the tree will decline? Tree roots can normally grow to that of two
and one-half times the height of the tree. The area under the canopy of
the tree is commonly referred to as the critical root zone. The amount
of critical root zone lost is directly related to the amount of die-back
in the crown of the tree. In an oak tree, if more than 30 percent of the
critical root zone is lost, the tree will die. However, soft wood trees,
such as box elder, can tolerate far more root disturbance. Why are the tree roots growing above ground? The growth characteristics of many species is to develop surface roots. Silver maples are one example. Many times, surface roots occur when the tree roots are looking for water, the soil is too hard, or the soil is saturated with water. Surface roots can impact sidewalks and driveways.
Trees should receive one inch of water per week. In times
of drought, it is important that you not only water your grass, but also
deep root water your trees. Who maintains the trees within the public road right-of-way? Answers to this and other boulevard trees/ road right of way questions >>>
The green color you are seeing is associated with algae growth suspended in the water. Excessive algae growth is caused by excess nutrients, such as phosphorous. Phosphorous is found in our leaves, grass clippings, and lawn fertilizer. In order to promote healthy water quality, it is important that we keep these items out of the street. Remember, the catch basins are a directly empty into our lakes, ponds, and wetlands. More information >>>
A wetland buffer zone is an area adjacent to the pond, wetland, or lake where the natural vegetation is encouraged to grow. This area promotes great bio-diversity for our pond environments. More information >>>
Many times geese are present on manicured lawns because it is a great source of food. To escape predation, they prefer to have a direct sight line of escape to the pond. Buffer zone plantings are one way to deter geese from feeding and nesting in your yard.
When development occurs in suburban areas, homeowners will have the opportunity to be exposed to more wildlife. Apple Valley is fortunate enough to be able to coexist with our coyote population. According to the Department of Natural Resources, there are no known reports of attacks to humans in Minnesota. Normally, coyotes are more afraid of humans than we are of them. Coyotes are predators of small animals, such as rodents, squirrels and small pets. If coyotes are sighted in your neighborhood, small pets should not be left unattended. Please report any coyotes who do not shy away from human contact to the City of Apple Valley.
Content updated on: 20-Apr-2004
|
|
