Common Tree Diseases - Symptoms, Diagnosis, and Treatment Information
There are a number of tree diseases common to landscape trees around the Evansville, Indiana area. Below are descriptions and treatments of the most common ones.
Anthracnose Canker
Symptoms- a common disease among plants that attacks leaves and shoots. The more disruptive canker type is the one that damages the tree's vascular system. Lesions and wounds that appear dark begin to surface on twigs and branches.
Treatment- spraying of fungicide every week can help to treat and prevent the disease to spread. It will also help to remove dead and seriously infected branches.
Treatment- spraying of fungicide every week can help to treat and prevent the disease to spread. It will also help to remove dead and seriously infected branches.
Armillaria Root Rot
Symptoms- a fungus that grows in the ground that invades the roots of plants. The tree begins to lose its health and the leaves begin to dull. Leaves shrink and become brown or yellow. Primary branches also begin to wilt and die.
Treatment- it is best to eliminate dead trees and their roots if infected by this disease. You can expose the lower part of the tree to air to control the infection if the tree is newly infected.
Treatment- it is best to eliminate dead trees and their roots if infected by this disease. You can expose the lower part of the tree to air to control the infection if the tree is newly infected.
Black Knot
Symptoms- it develops on the branches and twigs and appears as soft greenish knots. It is brought by a fungus that grows during the damp spring weather.
Treatment- cut the infected branches and twigs during the dormant season. Cut ii at least 4 inches beneath the obvious appearance of the knot. Also, it is important to give the tree a proper fertilizing.
Treatment- cut the infected branches and twigs during the dormant season. Cut ii at least 4 inches beneath the obvious appearance of the knot. Also, it is important to give the tree a proper fertilizing.
Botrytis Blight
Symptoms- brought about by the Botrytis species of fungus, it affects ornamental, flowers, and fruits trees and other types of plants. Fallen leaves and shoots and over-ripe fruits debris can contribute to the growth of the disease.
Treatment- eliminate the dead leaves, rotting fruit or flowers. Do not utilize sprinklers in watering plants and water plants at the base level.
Treatment- eliminate the dead leaves, rotting fruit or flowers. Do not utilize sprinklers in watering plants and water plants at the base level.
Cankers
Symptoms- brought about by either bacterial infections or fungal infections. It may look like a dark hollow area on major branches and tree trunk. The bark surrounding it typically dies and breaks off.
Treatment- trim the diseased branches in the dry weather. Limbs should be trimmed 6 to 10 inches over the canker manifestations. Sterilize the tools used once done to avoid spreading the fungal infection to other healthy branches.
Treatment- trim the diseased branches in the dry weather. Limbs should be trimmed 6 to 10 inches over the canker manifestations. Sterilize the tools used once done to avoid spreading the fungal infection to other healthy branches.
A Conk on Tree Trunk
Symptoms- it usually thrives surrounding the base of the tree. They are typically seen growing on decaying or dead wood. The appearance of conk may be indicative that the tree has dead wood.
Treatment- keep the tree properly fertilized. Water it well to improve its capacity to battle the infection of the fungus. Spraying of fungicide is also recommended.
Treatment- keep the tree properly fertilized. Water it well to improve its capacity to battle the infection of the fungus. Spraying of fungicide is also recommended.
Fusarium Patch
Symptoms- caused by Fusarium, a fungus that thrives in the ground that causes brown spots on turfs and lawns. It starts as tiny blotches and grows during the hot season.
Treatment- if the infection is intense, it may be impossible to control it in the same growing season. To avoid it from recurring in the following season, do not use fertilizers with high nitrogen.
Treatment- if the infection is intense, it may be impossible to control it in the same growing season. To avoid it from recurring in the following season, do not use fertilizers with high nitrogen.
Maple Wilt
Symptom- the first few signs would be the turning to yellow and browning of leaves of certain branches. The tree may eventually die if the disease is not treated well.
Treatment- pruning, fertilizing, and proper watering are the best ways to help prevent the disease since there is no chemical solution that can help control it.
Call Evansville Tree Service if you have any concerns about a potential disease issue with your landscape trees. For more information, click here.
Treatment- pruning, fertilizing, and proper watering are the best ways to help prevent the disease since there is no chemical solution that can help control it.
Call Evansville Tree Service if you have any concerns about a potential disease issue with your landscape trees. For more information, click here.