Skip to main content

Cody Molnar

SDSU Extension Horticulture Plant Pathology Field Specialist

605-688-4792

Berg Agricultural Hall 259
Box 2207D
Brookings, SD 57007

Cody supports the citizens of South Dakota as an SDSU Extension Horticulture Plant Pathology Field Specialist at the South Dakota State University campus in Brookings.

State & Regional Offices

SDSU Campus

Also by Cody Molnar

Two white flowers with green leaves. The first flower has an abnormal fused bloom.

Fasciation: What’s going on with my plant?

Fasciation is a malformation of plant parts commonly manifested as enlargement, flattening or cojoining. The abnormal growth of plants can be uniquely puzzling and beautiful at the same time.

A green corn leaf with yellow to brown spots throughout.

Corn Disease Update: September 2, 2025

As of September 2, 2025, a number of corn diseases have been reported and confirmed throughout South Dakota. View our latest findings as we approach the fall harvest season.

Coneflower with Aster yellows disease.

Aster Yellows Phytoplasma

Aster yellows is a phytoplasmal disease carried and introduced by aster leafhopper. It is known to infect over 80 different plant families, as the aster leafhopper has extremely broad feeding habits.