Stripe Rust 7.JPG

Stripe rust

Area of impact: Leaf

Description: First signs are small yellow elongated pustules on the leaf that resemble rows of sewing stitches. Later these pustules break open to release a yellow-orange mass of spores. Once the infected plant matures it turns brown and looks like it’s been scorched.

Pathogen involved: Puccinia striiformis (a fungus)

Timing/Conditions: Spores germinate best in cool, wet weather in fall winter and/or spring.

Contributing factors: Higher elevation and cooler climate. Warm or hot temperatures limit the fungus’s ability to spread. Spores spread on the wind.

Management practices: Plant resistant varieties use fungicide and monitor the crop carefully when conditions are favorable for stripe rust.

Ask an Agronomist

The material and content contained in the Greenbook label database is for general use information only. Agworld and Greenbook do not provide any guarantee or assurance that the information obtained through this service is accurate, current or correct, and are therefore not liable for any loss resulting, directly or indirectly, from reliance upon this service. This label database does not replace the official manufacture issued label. Users of this database must read and follow the actual product label affixed to the container before use of the product.