When it comes to tree diagnosis, there is a wide variety of issues and diseases that can keep your tree from thriving;
- insects
- fungal diseases
- environmental factors
- issues from improper care
Just to name a few. Here are a few reasons to what’s wrong with your tree.
What Wrong With My Tree?
By gathering the proper information and taking a closer look at the tree and other environmental factors, you can begin to uncover the mystery of your suffering arbor.
Environmental Issues COULD BE WHAT’S WRONG WITH MY TREE
In an often harsh environment like Omaha, Nebraska, it is important to consider recent weather. Normally, plants have time to harden off before winter, but huge drop in temperature damages the plants. The water within the trees vessels freezes which can result in die back from the tissue injury.
Salt Damage COULD BE ANOTHER PROBLEM TO WHAT’S WRONG WITH MY TREE
Salts used to control ice during the winter can affect all vegetation. This can cause dieback and yellowing of needles and leaves.
Soil
Unless there are insects clearly visible, the best starting point is to ensure that your tree is receiving the right amount of water and conduct a soil test. It is important to note that 80% of issues in the landscape are caused by soil.
Under Watering
Under waring during droughts can result in dying trees from drought stress. During this time, it is especially important to monitor your trees to ensure they are getting enough water. Drought stress can cause leaf scorch, among other ailments.
Over Watering MOST LIKELY WHAT’S WRONG WITH MY TREE
Over watering remains the number one cause of death in plants. The soil must be saturated and then allowed to dry. Most trees and shrubs will adapt but lots suffer and decline as they stay too wet.
Defoliation
The damage is caused by larvae or caterpillars when they emerge in early spring and start feeding on leaves. Most trees can survive moderate defoliation, but more excessive damage can make them vulnerable to other insects and diseases. This pest prefers leaves of deciduous hardwood trees such as maple, elm, and especially oak.
Insects SECOND CAUSE TO WHAT’S WRONG WITH MY TREE
Some insects on your trees can be left alone while others must be removed to protect the tree. For example, borers can kill a tree. They require treatment. Ants, on the other hand, are generally not a problem. Termites, however, feed on dead tissue, and the tree will need further assessment. If you find insects, try to identify them.
Red Spider Mites
These small mites that live under the “skin” of leaves, sucking at the sap. They cause leaf loss. They’re most commonly found on apple trees, azaleas, and camellias.
Japanese Beetles
Adults are metallic blue-green, ½-inch beetles with bronze wing covers, while larvae are fat, white grubs with brown heads. They can be found on many vegetables, flowers, and small fruit in all states east of the Mississippi River. Adults skeletonize leaves, chew flowers, and may completely defoliate plants while larvae feed on lawn and garden plant roots.
Lilac Ash Borer
Larvae of these insects cause damage in ash, privet, and lilacs by boring tunnels under the bark. Death of the tree may result if left untreated.
Aphids
Typically green, yellow or black in color, aphids are small, sap-sucking, soft-bodied insects. If you have aphids, you’ll likely find them on plant stems and leaf undersides. There they feed on tender, young growth, causing plants to appear puckered or deformed. You can also detect aphids by the presence of honeydew, a sugar-rich, sticky liquid they secrete.
Scales
Scales vary in color and appearance, but they generally look like small bumps on plant stems, leaves and fruit. Scales feed on plant sap, weakening plants and often causing leaves to yellow and die. They also secrete honeydew, like aphids.
Whiteflies
The whitefly is a voracious sap-sucking insect that causes stunted plant growth, leaf yellowing and reduced yields. With slender white bodies and wings, whiteflies tend to congregate in great numbers on the undersides of leaves to feed, taking flight when disturbed. Whiteflies also secrete honeydew, which encourages mold growth.
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