TY - JOUR AU - Sánchez-Reinoso, Isda AU - Jaramillo-Barrios, Camilo Ignacio AU - Monje-Andrade, Buenaventura AU - Ramírez-Godoy, Augusto AU - Vargas Berdugo, Angela María PY - 2021/09/01 Y2 - 2024/03/29 TI - Morphological variations and abundance of populations of the leafhopper Dalbulus maidis (DeLong) (Hemiptera: Cicadellidae) from the corn-producing region of Huila, Colombia JF - Agronomía Colombiana JA - Agron. Colomb. VL - 39 IS - 3 SE - CROP PROTECTION DO - 10.15446/agron.colomb.v39n3.96432 UR - https://revistas.unal.edu.co/index.php/agrocol/article/view/96432 SP - 343-354 AB - <p><em>Dalbulus maidis</em> is known as the vector of the pathogens causing corn stunt complex disease that decreases crop yields to percentages higher than 90%. In the most affected areas of this disease, there is an increase in the abundance of this insect. This research evaluated the abundance and morphological characterization of populations of <em>D. maidis</em> collected from the region of Huila and determined the possible morphological variations within these populations. Leafhopper samples were collected in corn crops from 40 to 70 d after planting from eight localities in the corn-producing region of Huila. Taxonomic determination was carried out and twelve morphological characters were compared to evaluate the inter-population variations. Analyses of variance were performed to determine significant differences between individuals at three levels: abundance from specific corn-producing areas, morphotype, and sex. A total of 6,722 individuals were found, separated into four morphotypes. Total length, head length, and distance between the eyes showed significant differences. This study can serve as a basis for a better understanding of the vector for future research in the corn-producing regions of Colombia.</p> ER -