We thought you might find the three photos below of interest. After seeing these, you’ll want to check your own Hawthorns and other trees right now.
These insects are sucking the sap and depleting necessary nutrients from the tree, which will weaken it over time. These insects are normally accompanied by large numbers of honey bees flying around the infected trees. The bees are feeding on the dripping honeydew produced by the Aphids that lands on the leaves of the tree involved, as well as onto the leaves of plants growing beneath the infected trees.
After Tree Green sprayed the tree, you can see the dead Wooly Aphids that fell on top of the leaves of the Hosta plants that were growing beneath the Hawthorn in this next photo.
The Hawthorn’s branches were Aphid free, but for how long? You can see what we found at the base of the tree, at ground level, just a few days later. Thousands of brand new Wooly Aphids starting to emerge from the ground on their way up the tree to reproduce and feed. Tree Green had to re-treat the tree due to the relentless attack of these insects.