The presence of the corn leafhopper decreases in Argentina and Uruguay during October

Published 2024년 10월 22일

Tridge summary

A network of institutions in Argentina and Uruguay has conducted a monitoring study to track the presence of the corn pest, D. maidis, using adhesive chromatic traps. The study, covering various regions in Argentina and Uruguay, has found a notable decrease in the pest in many areas, with over 94% and 97% of locations in the Central North and Central South regions, respectively, not recording any significant captures. The results vary across different regions, with some showing an increase in pest numbers, particularly in areas with volunteer corn. The network stresses the importance of continuing control measures, including the use of traps and direct monitoring, to further reduce the pest's incidence and prevent corn stunting.

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Original content

The study covered the regions of Northwestern Argentina (NOA), Northeastern Argentina (NEA), Litoral, Central North and Central South, as well as Uruguay. The network, made up of institutions such as AAPRESID, CASAFE, INTA and SENASA, used adhesive chromatic traps to capture the pest's adults. This latest monitoring shows a decrease in the presence of D. maidis, especially in the Central North and Central South regions, where more than 94% and 97% of the localities, respectively, did not record significant captures. Highlighted results by region: NOA: An increase was observed in the category of 5 to 20 adults per trap in some locations, suggesting the presence of volunteer corn as hosts.NEA: The capture of adults was limited to 12.3% of the locations, with a predominance of 1 to 4 adults per trap.South Central and North Central: Both regions registered a considerable reduction of the pest, with significant captures in less than 5% of the locations.Uruguay: Capture ...

Source: Chacra Magazine