Damping Off

Thielaviopsis basicola, Acremonium, or Pythium sp.

damping off damagedamping off root damagedamping off damage among seedlings

Note: Click on the image(s) above to see larger version.

Symptoms: Damping off is the term for a number of disease conditions that result in the infection and death of young seedlings. A water soaked lesion is usually visible on the stems near the soil line in the early stage, but wilting and death of the seedling quickly follow.

Control: Seed germination in cool, damp soil predisposes seedlings to infection. Overcrowding and overwatering are complicating factors. Sterilization of seed beds, use of clean seedling germination medium, and careful attention to watering in the first two weeks of plant growth minimize losses. Fungicide-treated seeds may reduce losses in the field.

The information given herein is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by the Texas AgriLife Extension Service is implied.

Educational programs of the Texas AgriLife Extension Service are open to all people without regard to race, color, sex, disability, religion, age, or national origin.

Publication Revised July 2009

Comments are closed.