TREE DISEASES - SYMPTOMS, DIAGNOSIS & TREATMENT
There are a number of tree diseases common to trees native to the Des Moines area. Below are a few common diseases, their symptoms, diagnosis, and treatment.
Apple Scab
Description- apple scab is a common disease that invades apple trees. It flourishes in moist areas and is caused by a fungus called Venturia inaequalis.
Recommendation- get rid of the fallen leaves beneath the tree. Spraying of fungicide would also help to control the disease.
Recommendation- get rid of the fallen leaves beneath the tree. Spraying of fungicide would also help to control the disease.
Bud Rot
Description- the leaves seem to wilt and discoloration begins to happen when the tree gets infected by bud rot. It is easy to miss symptoms for tall palms because they often form on top where it can't be seen.
Recommendation- prevention is always better than cure when it comes to bud rots. However, if the tree is already infected, treat the tree with a liquid copper fungicide.
Recommendation- prevention is always better than cure when it comes to bud rots. However, if the tree is already infected, treat the tree with a liquid copper fungicide.
Bacterial Blight
Description- causes the browning of young blossoms. It can affect a wide variety of trees and can be prevalent in damp and wet conditions. It can be caused by bacteria that can be distributed through rain, wind, and tools that are not sanitized.
Recommendation- secure correct spacing when planting trees to prevent Bacterial Blight. Prune the tree when necessary to allow proper air circulation and sanitize tools to avoid spreading the infection to healthy woods.
Recommendation- secure correct spacing when planting trees to prevent Bacterial Blight. Prune the tree when necessary to allow proper air circulation and sanitize tools to avoid spreading the infection to healthy woods.
Citrus Scab
Description- appears as a scab on the surface of citrus fruit. The fruits will cease to develop well and leaves will fall mid-season. It is caused by a fungus that invades the exterior of the leaves and the fruit.
Recommendation- spray the infected area with fungicide. It should be done in the late winter before new growth begins. It would also help to avoid sprinklers when watering a citrus tree to avoid spreading the disease.
Recommendation- spray the infected area with fungicide. It should be done in the late winter before new growth begins. It would also help to avoid sprinklers when watering a citrus tree to avoid spreading the disease.
Downy Mildew
Description- it appears as tiny yellow blotches on the upper exteriors of the leaves. The other side of the leaf is covered with white cottony sprout. The disease is common among grape vines.
Recommendation- eliminate all fallen leaves and foliage. Spray the infected tree with fungicide in the early summer or spring. Spray trees that are in close proximity to the affected tree to prevent it from spreading.
Recommendation- eliminate all fallen leaves and foliage. Spray the infected tree with fungicide in the early summer or spring. Spray trees that are in close proximity to the affected tree to prevent it from spreading.
Greasy Spot
Description- common among citrus trees, a greasy spot is a fungal disease. Symptoms include blisters that appear yellowish-brownish on the surface of the leaves. This disease can cause the tree to lose a large number of leaves.
Recommendation- remove fallen leaves to avoid the infection from resurfacing.
Recommendation- remove fallen leaves to avoid the infection from resurfacing.
Iron Deficiency
Description- new leaves that seem green or yellow are a common indication of iron deficiency. Newly formed leaves look yellow and tiny in extreme cases of this disease.
Recommendation- put iron tablets in the ground at the tree's drip line to correct iron deficiency.
Recommendation- put iron tablets in the ground at the tree's drip line to correct iron deficiency.
Leaf Curl
Description- peach and nectarine trees are mostly invaded by this fungal-borne disease. Leaves will look thick and curled and will turn yellow or red in color. The fungus attacks the leaves on the onset of spring when the new buds sprout.
Recommendations- once attacked by the disease, leaves cannot be treated in the same growing season. After the disease is identified, spray it with fungicide. Do the process after 21 days.
Call Des Moines Tree Service for expert consultation and advise on all common tree diseases.
Recommendations- once attacked by the disease, leaves cannot be treated in the same growing season. After the disease is identified, spray it with fungicide. Do the process after 21 days.
Call Des Moines Tree Service for expert consultation and advise on all common tree diseases.
