TREE & LAWN CARE BLOG
Oak Leaf Miners - Identify & Control
What’s wrong with my oak tree leaves?
Over the past few dry, hot months we have received numerous phone calls about discolorations on Oak tree leaves. Upon further inspection by our certified arborists, oak leaf miners are to blame.
What is a leaf miner?
A leaf miner is an insect, about a quarter inch long, that lives in and eats the tissue of plants. They often leave behind a squiggly trail or big, discolored blotches. A certified arborist can determine the exact tree pest with a tree care inspection.
Can leaf miners damage my trees?
Fortunately, most leaf miner damage is purely cosmetic and is seldom a concern of the overall health of your trees. Leaf drop and defoliation is common, but not threatening. All the leaves on your oak trees will come back next spring with new growth.
How can I get rid of leaf miners?
While there are certain pesticides our tree care experts can apply in large infestation cases, the best practice for getting rid of oak leaf miners is simply raking up and destroying the damaged and dead leaves from around the base of your trees. This can prevent the infestation from spreading to other trees in the area.
If you have any questions or concerns about your trees, click the link below to be connected with one of our ISA certified arborists today!
CONNECT ME TO AN ARBORIST!
Do I Have A White Pine Weevil Infestation?
The eastern white pine tree is characterized by its blue-green needles. It grows best in zones 3-8 and is a valuable hardy tree. Easy to grow and maintain, the eastern white pine is known for its adaptability to grow in many different conditions. However, it is susceptible to the white pine weevil.
What is the white pine weevil?
The white pine weevil is considered one of the most destructive tree pests in the U.S. It primarily feeds on the white pine but has been known to favor a few other species such as the spruce and fir. This insect is extremely small in size, averaging at 7mm in its adult cycle. They tend to gather in the leaf debris at the base of your trees in winter, to emerge in spring and attack its hosts. The damage from a white pine weevil is extensive and can escalate extremely fast. If you suspect white pine weevils on your trees, it’s important to get a tree care estimate by a certified arborist immediately.
What are the signs of white pine weevil?
Presence of adult weevils on bark
Pin sized holes
Spongy or softened areas under the bark
Wilting or drooping
How do I get rid of the white pine weevil?
Unfortunately we cannot recommend any at home treatment for this pest, as it is so destructive and must be maintained properly. An application of insecticide should be applied by a tree care specialist between March and April when drops of resin are first detected. Depending on the extent of the damage, the remaining infected portions of branches should be removed and burned to prevent further outbreak.
We recommend a regular tree health inspection by an ISA certified arborist to prevent pests and decay from taking over. Click the link below to set up a free estimate with one of our arborists and start your tree pest prevention plan today!