They’re called plant lice for a reason. Although aphids are fragile insects, they are not harmless, and can damage your trees and landscape plants. Follow our advice to help your most valuable natural assets survive the summer months.

What do aphids look like?

Aphids comprise several species; some are orange, green, red or black while others are woolly, spotted or bull-legged. Regardless of their hue and label, they are hungry!

What are the symptoms of an aphid infestation?

They feed off deciduous trees’ leaves and evergreens and cluster in large colonies to attack new growth.

As with any tree and landscape pest, monitoring is critical. Here are a few signs:

  • Leaf curling
  • Distortion
  • Twig dieback
  • Stunting
  • Honeydew
  • Sooty mold fungi

Solutions and Treatment

Let’s go back to eighth grade science class for a minute—here’s why aphids are an issue. The sooty mold fungi collect on the surfaces where honeydew exists, blocking sunlight and reducing photosynthesis. Horticultural soap treatments and oil applications or related control products can prevent aphids’ honeydew from occurring and remove sooty mold. Remember to frequently inspect your plants for aphids to prevent plant injury.

Contact your local certified arborist to ensure your trees survive the summer months in the best shape possible. 

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