Corn stunt disease catches Argentina by surprise

Maize (Corn)
Published Apr 19, 2024

Tridge summary

In Argentina, the Buenos Aires Grain Exchange and the Rosario Exchange have revised their corn production estimates downwards by 2.5 million tons and 1 million tons respectively, due to the impact of corn stunt disease. This disease, spread by corn leafhoppers, has resulted in a 30% reduction in corn yields in the far north of the country and led to 150,000 hectares of corn being harvested for forage instead of grain. This season marks the first significant impact of corn leafhoppers in Argentina, a pest that emerged in Brazil about 4-5 years ago. The spread of the disease is exacerbated by Argentina's staggered corn planting schedule, and managing the disease is difficult and expensive due to the lack of resistant corn hybrids and the need for multiple insecticide applications.
Disclaimer: The above summary was generated by Tridge's proprietary AI model for informational purposes.

Original content

The Buenos Aires Grain Exchange lowered the Argentina corn estimate last week by 2.5 million tons to 49.5 million and the Rosario Exchange lowered the corn estimate to 50.5 million. These estimates are 6-7 million tons below the initial estimates at the start of the growing season. The reason cited by both exchanges for the lower estimates was damage caused by corn stunt disease. The Buenos Aires Grain Exchange stated that 150,000 hectares of late-planted corn in the center-north of Santa Fe and north of Cordoba that was destined for grain production was instead harvested for forage after being infected by corn stunt disease. Additionally, corn yields in far northern Argentina have declined 30% in the last three weeks due to the disease and moisture stress. Corn stunt is a bacterial/viral disease transmitted by corn leafhoppers or similar insects. The earlier the plant is infected, the greater the potential yield loss which could be up to 100%. Once the plant is infected, there is ...
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