Many people are allergic to pollens from grass and weeds. Such allergies usually occur in the late spring and summer.

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

See also:

• Allergies
• Hay fever

Although the grass itself may not be harmful, fertilizers, insecticides, and herbicides applied to the grass can be poisonous.

Review Date: 11/05/2009
Reviewed By: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)