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Control Noninfectious Agents Affecting Landscape Trees

Wednesday, September 17, 2014

Landscape trees are at constant risk of getting diseased and infected due to noninfectious agents, poor environmental conditions and several other such factors. Just like the living disease agent, noninfectious agents are also the major cause of tree disease that enable the further infection of living agents to injure the landscape trees or the health of nearby trees. However, forming diagnoses for an urban environment tree can be a tricky, and quite challenging job. Whenever making an effort to find out the cause behind a malfunctioning tree, make sure you have the tree’s history as well as past disease pattern in hand. Without that, it might become very difficult to provide the tree with proper treatment and care. Mentioned below are few of the most common noninfectious agents that affects landscape trees.

High Temperature Affects

If the weather continuously remains dry and warm, with hot winds about, tree may lose its water. This may be a consequential threat to the maple leaves. Effect of this begins to show when the leaves start turning from green to brown or yellow and start falling rather prematurely. Taking care of the tree’s water intake more frequently during the summer season can prevent such illness in a tree. Also try to keep your landscape tree away from direct sunlight and wind contact.

Low Temperature Affects


While a real hot summer may be hazardous for the trees, lower temperatures damage them in several ways as well. Labeled as “Frost Injury,” during early fall, as well as late spring, the frost affects trees and hence the new buds and leaves are destroyed. While most of the time the trees manage to survive from this injury, it does have a great impact on their growth. This can be prevented by keeping the relatively younger trees covered, growing a tree in the climate where it is meant to be grown in and avoiding high nitrogen fertilizers.

Moisture Affects

There are two extremes; drought or high moisture in the air, both can be hazardous for landscape trees. Due to very little rain, some trees dry out because of the loss of water. The tree gets its water from the roots, and if the soil beneath is dry, it will start to dry out and eventually die. This can be countered by taking care of the plant you are growing, if it has shallow roots, do not grow it in a place where there is sandy soil or the climate is over all of low-moisture. Also, make sure you always water such trees around six to twelve inches deep.

Apart from drought, excess of rain in the area can also cause minor to severe damage to the landscape trees. When the floods come, the roots die because of the lack of oxygen within the soil; hence, the tree’s growth is significantly affected. Preparing the area to be flood-free before you actually go on and plant a specific tree that can prevent this disaster.

Chemical Substances Disorders


In landscape trees, several chemicals are used to maintain the plantation. These include several different kinds of fertilizers. While these fertilizers and materials are useful for the growth of the tree, overdose can do an extreme damage to trees as well. Once the soil overdosed, it might cause diseases such as nutrient deficiency, herbicide injury and salt damage. Chemical substance disorders can also be formed due to pollution in the city air. In order to keep your landscape trees safe off these diseases, make sure you know the proper dosage of fertilizers when its time to fertilize the soil. Also make sure that you have the foliage analyzed and frequently tested. This way you will be prepared to get out the tree’s deficiency and will be able to provide it with the required nutrient. Also make sure you apply the herbicide spray when the condition of the winds are calm.

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