NC State Extension Publications

Problem

Skip to Problem

Abiotic disorder - frost damage

Symptoms

Skip to Symptoms

Healthy flowers with darken dead centers, dead flowers, misshaped friut, dead fruit.

Strawberry flower with brown/black center.

Frost damage strawberry flower.

Rocco D Schiavone

Newly opened flower with brown center.

Flower damaged at popcorn stage.

Rocco D Schiavone

Similar Problems

Skip to Similar Problems

Boron defficiency, calcium defficiency, thrips.

Additional Information

Skip to Additional Information

Visible within 24 hours of frost/freeze event.

Diagnostic Tips

Skip to Diagnostic Tips

Similar to poor pollination. Open flowers are most vulnerable. Critical temperatures are 30°F for open flowers, 28°F for fruit and 22-27°F for tight flowers.

Corrective Measures

Skip to Corrective Measures

Sanitation and botrytis control spray may be helpful.

Management

Skip to Management

Protect flowers/fruit from freeze and frost with overhead irrigation or row covers in spring when plants begin to grow and have more than a few open blooms.

Funding Sources

Skip to Funding Sources

Funding was provided in part by the National Sustainable Agriculture Program: Sustainable Strawberry Initiative and the following sources.

University of Arkansas Division of Ag logo

Walmart logo

Author

Research Specialist
Horticultural Science

Find more information at the following NC State Extension websites:

Publication date: March 25, 2014

N.C. Cooperative Extension prohibits discrimination and harassment regardless of age, color, disability, family and marital status, gender identity, national origin, political beliefs, race, religion, sex (including pregnancy), sexual orientation and veteran status.