As beautiful as trees may make your yard, they are not without their problems. Problems can occur at any time during the year, but knowing what to look for will help you to catch them earlier on. So, here are 10 of the most common tree problems homeowners may encounter. 

Tree Problems

Some trees are more prone to problems than others. The Robinia pseudoacacia, more commonly called the yellow false acacia, is one such tree, which can suffer greatly during the colder months due to leaf spot fungus, bacterial rots, water molds, and honey fungus, which can be caused by consecutive wet summers. If the tree is sick and in an area where a falling branch can cause any sort of damage, call a tree service immediately to have it removed.

Tree Fungus & Other Diseases

Honey fungus, as mentioned above, is a problem certain perennial trees may suffer from; it can be identified by a creamy white sheet of mycelium that will smell like mushrooms and is found just under the tree’s bark. This is another scenario where, should you find honey fungus on a tree, you need to have the tree removed immediately.

Powdery Mildew

Sometimes trees may develop a powdery mildew, which is common during the summer on trees like oaks, maples, and catalpas. It may occur due to dryness in the tree’s roots and poor air circulation. To remedy the problem, give the tree more water and mulch it, but also avoid any high-nitrogen feeds.

The Knopper Gall Wasp

While not a serious harm to trees, the knopper gall wasp is known to lay eggs in the acorns on oak trees which causes the acorns to become deformed. The number of affected trees changes every year, but it is still nothing to be overly concerned about.

Moths and leaf spots

The fine house chestnuts is another tree that encounters problems such as yellowing leaves. This is usually due to moths and leaf spots forming and is not something to worry about too much. You should be concerned, however, if you discover a bleeding canker—a black, gungy ooze. Some trees can recover on their own, but you may need to call a tree service if it does not recover that way.


Acers are yet another tree which can cause problems; the leaves may turn brown or the tree may just generally appear sick. In many cases, this may be happening due to a fungus called vericillium, which starts at the roots and works upward. Cut off a branch to see if there is green-brown streaking in newer layers of wood—if there are, then you need to remove the tree entirely.

Problems with Ivy

Ivy can also have some problems but, since each ivy is different, different methods of care are also required. So, it is best to talk to a professional if you have any concerns regarding ivy on your property.

Aphid attack

When leylandii or coniferous hedges turn brown or dieback, it may be due to an aphid attack. So, skip the autumn cut, as that may make them suffer even more. You may also want to avoid using any weedkillers too close to them, which can harm the roots.


Beech trees may suffer from dieback, due to them adjusting so slowing from changing climates. Ideally, you should purchase them as seeds from warmer locations, so that they will have an easier time adjusting.


Then there are the squirrels, who love trees, but also hurt them a lot by eating at the bark. To remedy this problem, buy a squirrel collar and apply it to the tree’s trunk about three feet high; but your trees are close together, it will not solve the problem entirely.

These are common problems that you should be aware of concerning trees, particularly if you have any of the kind mentioned above. Whenever you have a tree service remove a sick tree, you also want to be sure to keep them away from your other plants and compost pile, as it can end up harming them as well.