Seasonal Dispersion Pattern of Liriomyza trifolii (Diptera: Agromyzidae) Infesting Bell Pepper 1

Publisher Website
Google Scholar
Abstract
Dispersion indices were calculated for larval populations of Liriomyza trifolii (Burgess) infesting bell peppers in a 0.4-ha field. These included the variance/mean ratio ( s2 / m ), mean crowding ( m * ), Green's coefficient ( Cx ), the regression of m * on m , and the regression of log s2 on log m . Regular distributions were occasionally observed for larvae during the initial ⅓ of each growing season. Early season plants were small and larval population densities per plant were m * on m and log s2 on log m . Most values of Cx were nearly equal to 0.0, which suggested a tendency toward randomness. Cx was found to be independent of mean leafminer larvae population density and was considered a most reliable dispersion index.

This publication has 4 references indexed in Scilit: