Plant illnesses can result in damage to the appearance of the tree and loss in crop yield. In addition to that, these problems can also weaken the tree’s integrity. If that is the case, dangerous situations might happen in which falling branches can lead to bodily injury or property damage.  

If you want to avoid these threats, you must know how to identify the obvious indications of common tree diseases. Doing so will help you take the required actions to fix the problems.  

Oftentimes, disease outbreaks are regional, seasonal, and specific to species. Once you notice at least one indication of tree disease, don’t hesitate to hire professional tree services Berkeley company. 

Diplodia Tip Blight 

This is a common tree disease that attacks different forms of pines. In general, diplodia tip blight develops at the tree’s base and will slowly move upward. It can result in dead shoots with oddly elongated needles. Also, black fruiting structures are usually noticeable between the cones and the needles.  

Pruning and sanitation, as well as application of fungicide at bud swell is a successful treatment. To guarantee effective treatment, make sure the fungicide you use has thiophanate-methyl.  

Cedar Rusts 

This type of tree disease attacks rosaceous plants, such as crabapple and hawthorn. Keep in mind that a couple of species are more vulnerable to cedar rusts compared to others. Cedar rust causes rust or orange-colored spots of the leaves of crabapple and hawthorn. Typically, it occurs during the spring season. You might also notice twig cankers in your tree.  

You can manage the disease if you apply fungicide at bud break. Aside from that, you have to choose a fungicide that has triadimefon. 

Apple Scab 

This is a form of tree disease that affects the leaves of the tree. It affects crabapples and happens in the early season. A couple of species are more resistant to apple scab compared to others. If your tree is affected by the apple scab, you will see scab-like cuts forming on its leaves. Apple scab can result in premature defoliation. 

Though apple scab is primarily aesthetic, you still have to treat it as soon as possible. You can manage this problem by using fungicidal agents that contain fenarimol.  


This is perhaps one of the leading plant diseases in shrubs and trees. Anthracnose stems from a fungus that attacks the fruits, flowers, twigs, and leaves of numerous various species. Typically, you can find this disease throughout North America. The most heavily affected species are flowering dogwood and sycamore.  

The signs of anthracnose greatly differ by the host species and the pathogen. Nevertheless, a couple of the most common signs include twig blight and leaf defoliation.  

You can apply fungicide at bud opening. You can also systemically inject it to get rid of the disease. However, if the affected tree is dogwood, you will have to apply the fungicide during bud break. Then, you will have to keep on applying it throughout the growing season. You can hire a professional tree care company for help.