Pacific Northwest Plant Disease Management Handbook

Horse-chestnut (Aesculus spp.)-Leaf Scorch

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Latest revision: 
March 2024

Trees in pots combined with high temperatures can be a problem keeping up with watering and resulting in leaf scorch.

Jay W, Pscheidt, 2008.

Image related to Horse-chestnut (Aesculus spp.)-Leaf Scorch

Hard for this little seedling to take 104F with no water.

Jay W. Pscheidt, 2012.

See:

Maple (Acer spp.) - Leaf Scorch

Cause Some trees will show symptoms of this nonparasitic problem year after year, regardless of the weather. Suggested causes have included high slat injury and heat but are not consistently associated with symptoms.

Symptoms Margins of leaves brown and curl during the summer.

Control Unknown.

Reference Hammerschlag, R., Sherald, J., and Kostka, S. 1986. Shade tree leaf scorch. J. Arboric 12:38-43.

Pscheidt, J.W., and Ocamb, C.M. (Senior Eds.). 2024 Pacific Northwest Plant Disease Management Handbook.
© Oregon State University.

Use pesticides safely!

  • Wear protective clothing and safety devices as recommended on the label. Bathe or shower after each use.
  • Read the pesticide label—even if you’ve used the pesticide before. Follow closely the instructions on the label (and any other directions you have).
  • Be cautious when you apply pesticides. Know your legal responsibility as a pesticide applicator. You may be liable for injury or damage resulting from pesticide use.

Trade-name products and services are mentioned as illustrations only. This does not mean that the participating Extension Services endorse these products and services or that they intend to discriminate against products and services not mentioned.

H - Home garden packaging commonly available.     O - Acceptable in organic production.