Why is Tree Injection Useful During Fall and Winter?

Posted on Nov 2, 2017 9:00:00 AM by Stephanie Morgan

Why is Tree Injection Useful During Fall and Winter? | The Experienced GardenerMost trees are dormant during the winter months. Due to this fact, many people think that trees don’t require much maintenance during the late fall-winter seasons. However, this isn’t necessarily true. While tree maintenance is definitely less hands-on than spring and summer, there are a few things you can do during the cold seasons to ensure your trees are healthy and thriving all year long. One tool you can use is Systemic Tree Injection. Here are a few benefits of tree injections before the winter season:

Preventing Winter Pests

Believe it or not, here are some pests that are actually more active during the colder times of the year. One notorious pest known for this is the Winter Moth. These pesky little creatures can cause severe defoliation and even death in hardwood trees.  In early Spring, the larvae start feeding on developing leaves. Around June, they drop to the ground and develop in the ground until fall. By the time November rolls around you will start to see the adult moths and they are generally active until about January. To deal with these pests, there are several insecticides such as TREE-äge or ACE-jet that you can inject directly into your tree’s system that will kill the bugs off and prevent more from hanging around your tree at it’s most vulnerable time.


Although your tree is mostly dormant in the winter and requires less nutrients than usual, fertilizing during the late fall season is still a smart idea. When you inject your tree with nutrients during late fall, it will use them for two main purposes. Some of the nutrients will be used to improve and grow roots to protect it during the harsh winter weather. The rest of the fertilizer will be stored in the tree and as soon as spring arrives, used to get a head start on development.

It’s quite important to time this injection just right. If you inject your tree with nutrients too early in the fall, the tree will start using them to develop new stems. Although this might sound like a good thing, these stems will most likely not have enough time to harden off before winter arrives, and will break off quickly. Because of the precise timing and planning this takes, it might be good idea to call a professional to ask about which product is best for your specific trees, and exactly when to start the injection process.

Taking care of your trees during the winter, although less invasive and time consuming, can be just as important as the hard work you do for them during the spring and summer months. Take the time to protect them during their most vulnerable seasons, and you’ll be sure to reap the benefits when spring rolls around and they start blossoming again.

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Topics: Gardens