Tag weed and feed

We know, people have told you it is fine.
We know, the marketing tells you it is fine.
We know, you have done it for years and your tree looks fine.

Weed & Feed is bad for trees. 

Weed and feed products are designed to be a simple single product that is home owner friendly, however weeding and feeding are two very different actions. 

One action is to kill plants (that are not sod) and the other action is to improve the health of soil (in theory).

The herbicide in most weed and feeds is a “woody stem killer” and trees are woody stemmed plants. 

There is no safe distance for application in an urban setting as the chemicals will leech/move through the soil in water. Even if your neighbor uses it, your tree will be affected. 

While the dose may be low enough not to immediately kill your tree, it will cause it stress and combined stress is what kills trees. 

The signs of stress caused by weed and feed appear months after application, often late summer:

At Texas Tree Surgeons we love trees and we want trees and lawns to live symbiotically together, not at odds of one another. If you notice any signs of stress on your tree, or would like help in managing a healthy balance of needs in your yard please schedule an assessment with one of our certified arborists.

The roots of trees serve many functions, there are specific ones used for stabilizing while others are used for absorbing water and nutrients. While we tend to pay attention to what is easily visible like the canopy of the tree, roots need to be cared for just as much, if not more.

The best way to care for roots is by leaving them undisturbed. In a perfect urban setting that would look like a tree’s entire drip line (canopy) covered with mulch with minimal foot traffic. While this is not possible for many homeowners, reducing root disturbance is the next best thing.

Common Root Disturbances in Urban Areas:

Chemical disturbance:

• Weed and feed
• Interior/ Exterior paint brushes and tools rinsed outdoors
• Pool water, both saltwater and chlorine
• Gas leaks

Mechanical disturbance:

• Compression
• Trenching – plumbing, irrigation, cement work
• Install of new sod or fake turf
• Grading or changing the soil
• Landscaping rocks

Often when we think of roots we imagine large support roots in the ground, when it is the fine absorbing roots in the top few inches of soil that keep the tree alive. When these roots are cut, or the soil around them is compressed the roots die.

A healthy tree can sustain some root damage, but a tree under stress, like one living in a city and not in forest, can not sustain this type of stress for long because this is most likely not the only stressor the tree is enduring. Often we see trees die years later from root disturbance after they have used up all of its stored nutrients.

Some species respond more drastically than others to root stress. Species that do very poorly are; post oaks, magnolias, red oaks, dogwoods, and sweet gums.

There are times that roots will be disturbed by an arborist or tree health care technician to improve tree health. 

• Air spading is done to decompact soil so the tree is able to better absorb air, water and nutrients
• Root pruning in a younger tree will be done to correct girdling roots

At Texas Tree Surgeons, we love trees and we love our community! If you are planning to remodel, do new landscape, or installation of sod we would love to help safeguard your trees. We are rooting for trees. Contact us today!