The population growth of Elasmopalpus lignosellus (Zeller), the lesser cornstalk borer (Insecta: Lepidoptera: Pyralidae), was determined in conventionally tilled Florunner peanut fields in endemic (1983-1985) and outbreak (1986) population configurations. The density of E. lignosellus eggs, larvae, and pupae was estimated by weekly soil flotation and by soil sieving. Adult density and abundance was estimated with pheromone traps, emergence cages, and flush samples.
In the endemic years, low levels of eggs, larvae, pupae, and adults occurred throughout the growing season. Adult populations exhibited 1-2 weak peaks per growing season. The outbreak year was characterized by an exponential increase in
A regression relationship was developed from the 1983-1986 data that relates the weekly mean number of
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Keywords: Elasmopalpus lignosellus, population ecology, sampling methods, temperature effects
How to Cite:
Mack, T. & Backman, C., (1987) “Density of the Lesser Cornstalk Borer, Elasmopalpus lignosellus (Zeller) in Peanut Fields: Endemic and Outbreak Population Configurations”, Peanut Science 14(2), p.61-66. doi: https://doi.org/10.3146/i0095-3679-14-2-3