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Adelgid Control and Treatment

Hemlocks and Pines are under attack from Adelgid.  Hemlock Woolly Adelgid is a serious threat to Eastern Hemlocks in the Philadelphia area. Additionally, Pines such as White, Austrian and Pitch are frequently infested by Pine Bark Adelgid. Both Adelgids cause serious damage.

For Hemlock Woolly Adelgid, close inspection is required.  Look for cottony dots on the underside of hemlock branches, grayish-green needles, needle drop and branch dieback. Without treatment the Hemlock will die. Trees must be treated when the pest is most vulnerable.

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Watch the video to learn more about Hemlock Problems: Giroud ISA Certified Arborist, Rob Nagy, explains how to spot the pests on your Hemlocks and provides advice on the best action to take.

Pine Bark Adelgid
Pine Bark Adelgid

Pine Bark Adelgid (pictured) can also seriously injure Pines.  On newly planted trees,  heavy infestations can stunt plant growth.  Another easy to spot symptom of this pest is the appearance of snow on the bark. Pine bark adelgids also secrete honeydew, which can lead to the presence of sooty mold and attacks by other pests.

For more information on tree problems and solutions, check out Giroud’s insect and disease control.

Adelgid control is required to prevent damage. If you have high risk risk Pines or Hemlock evergreens, schedule a free inspection by your Giroud Arborist.