The effectiveness of yellow sticky card sampling for determining coccinellid presence and density was compared to other sampling methods. Visual searches and sweep net sampling in alfalfa were utilized to gauge comparative catch rate for several species. Cage studies were performed to determine differential attractiveness and escape rates of the most commonly collected species. Early results indicate that sticky cards may be more effective at low densities and that larger coccinellid species escape more frequently than smaller ones. These results can be applied to IPM sampling programs or surveys for rare species to correct for the catch frequencies for species that escape more frequently.
Species 1: Coleoptera Coccinellidae Coccinella novemnotata (C-9)
Species 2: Coleoptera Coccinellidae Coccinella septempunctata (C-7)
Species 3: Coleoptera Coccinellidae Harmonia axyridis (multicolored Asian ladybird beetle)
Keywords: yellow sticky cards, sampling
The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA