Pests and diseases of Acer negundo

El acer negundo, known by the names like American maple or board maple, is a deciduous tree whose leaves are reminiscent of those of the Fraxinus (ash trees). It is a very fast growing species that is grown in cold-temperate climates, but it can also be grown in slightly warmer climates, such as the Mediterranean.

Although it is considered a resistant plant, the truth is that it has its enemies. Let us know what are the pests and diseases of the acer negundo, and how to treat them.

Pests

The pests that can affect you, especially in the warmer and drier months, are above all three: the mealybugs, aphids and Caterpillars. Can be avoided maintaining high humidity while it is in a pot, either by spraying the leaves in the late afternoon with rain, distilled or osmosis water, but once it grows it will be much more practical to take a backpack for insecticide and fill it with the dose indicated on the container with Paraffin oil for example, or Neem oil.

In the event that the tree already has some insects, if they are few, they can be removed with a swab from the ears moistened in water with a little hand soap. But if the plant is severely affected, it will be necessary to opt for chemical insecticides like Chlorpyrifos.

Management

The diseases that can affect you the most are the fungal type, or what is the same, caused by fungi. Fungi are microorganisms that, despite having the behaviors of other living beings, are neither animals nor plants, but rather belong to a different category.

Conclusion very difficult to eradicateSince the spores are tiny, much smaller than the smallest seed of a plant, so they can be carried away by the wind like dust. Thus, the spores can enter any micro-wound that the tree has, germinate and weaken it.

To avoid it, It is very important not to flood the substrate or the earth every time we water, and to do preventive treatments with copper or sulfur (Be very careful if you have pets or small children, as they are very toxic if ingested). But if the tree is already beginning to have brown or black leaves, if it is just growing, it is better to use a systemic fungicide.

And if you want more information, in this other article We tell you what are the symptoms of the main pests and diseases.

Did you know about the pests and diseases of the acer negundo?