![]() One of the most effective methods is to apply an insecticide or horticultural oil to the dogwood tree. There are several methods you can try to get rid of aphids. If you do spot them, treating them properly and promptly can help prevent further damage. Upon noticing that the leaves on your dogwood tree have started to curl up, one of your first steps should be to look for these tiny green insects on the underside of the leaves. Aphids can also transmit diseases between plants, which can cause larger problems in the future. The ants also feed on the sap and help to protect the aphids in the process. When aphids feed on the leaves and release the sticky sap, it can attract larger insects like ants. This can cause the leaves to curl up, change color, and may even cause them to fall off. The insects feed in groups on the undersides of leaves by sucking the sap directly from the leaves. ![]() AphidsĪphids are small insects that feed on the sap of plants, especially those that are found in your yard. Here are the 3 most common causes and how to treat them. The large issue at hand is that the leaves are stressed in some way, whether that be insects, disease, or other environmental factors. If you've noticed that your dogwood leaves are cupping and curling, it's usually not a major cause for concern. How Do You Save A Stressed Dogwood Tree?Ĭommon Causes Of Leaf Cupping and Curling.How Do I Know If My Dogwood Tree Is Dying?.Common Causes Of Leaf Cupping and Curling.
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