Aureusvirus zeae

Aureusvirus zeae is a viral pathogen classified within the genus Aureusvirus of the Tombusviridae family. It primarily attacks the vascular tissues of host plants, disrupting nutrient transport and severely hindering the photosynthetic capacity of the affected crop.

The primary host for this virus is maize (Zea mays). The virus is known for causing systemic infections that can lead to significant economic losses in commercial corn production by impairing both vegetative growth and grain filling processes.

Visible symptoms of the infection include a distinct golden or yellow discoloration of the leaves, generalized chlorosis, and mottled patterns on the foliage. As the disease progresses, infected plants exhibit stunted growth, reduced internode length, and the formation of smaller, malformed ears with poor kernel set.

The transmission of the virus is typically facilitated by infected crop residues, contaminated soil, and seed-borne transmission. Environmental factors that promote the activity of potential insect vectors or mechanical injury during field operations significantly increase the rate of viral spread across the plantation.

Management strategies focus on a multi-layered approach to minimize crop loss. Key measures include:

• the use of resistant maize hybrids;
• strict weed management to remove potential virus reservoirs;
• implementation of integrated pest management (IPM) to control vectors;
• adherence to crop rotation practices to reduce inoculum buildup in the soil.