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Video Q&A ViewAttendees 1

Plant-Insect Ecosystems

10-Minute Paper

P-IE: Biocontrol On-Demand Presentations

Predation behavior of green lacewing species (Neuroptera: Chrysopidae) on Leucoptera coffeella (Lepidoptera: Lyonetiidae) stage

On-Demand
On-Demand

In order to assist future biological control programs that use Chrysopidae as a control agent, this research aimed to study green lacewings species associated with coffee (Coffea arabica L.) crops in the Franca region - SP and to verify which species are potential. biological control agents of coffee leaf miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae). The lacewing species Ceraeochrysa cincta, Ceraeochrysa cornuta and Chrysoperla externa (Neuroptera: Chrysopidae) were studied using densities of larvae and pupae of L. coffeella. To conduct the bioassays, predators were collected from coffee crops in the Franca region, Brazil and taken to the laboratory, where they were sorted, used to start rearing, and later, some individuals were sent to a specialist (taxonomist) for proper identification. In laboratory, experiments were carried out to determine the predation behavior of the lacewing species on different densities of L. coffeella larvae and pupae (1, 2, 4, 8, 16, 32 and 64 prey). The functional response was determined by logistic regression of the number of larvae and pupae consumed as a function of the initial number of prey using polynomial logistic regression. Random equation was used to describe the parameters of the functional response. Predators Ce. cincta, Ce. cornuta and Ch. externa presented a type II functional response consuming both larvae and pupae of L. coffeella.