Crape Myrtle Bark Scale

David Cook, UT agriculture extension agent for Davidson County TN, explains the non-native scale that poses a serious threat to Southern Crape Myrtles. The nymphs produce a large amount of honeydew that drips down the trunk, branches, leaves, and ground below. That substance then accumulates sooty mold. While not fatal, it makes the infested trees an eyesore in the landscape.

Gardener Extras

  1. Although heavy scale infestations are seldom fatal, the aesthetic impact is significant.
  2. Also susceptible to CMBS is edible fig, boxwood, American beautyberry, privet and raspberries.
  3. Systemic insecticides applied to the root zone as a soil drench between may and July is the most effective treatment.

David Cook

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