The influence of plant dispersion on movements of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), was studied with mark-recapture techniques. Beetles released between potato monocultures, polycultures with two additional non-host plant species, and polycultures with five additional non-host species, randomly colonized the three types of plots. Releases between different arrangements of potted host and non-host plants showed (1) greater beetle colonization and greater length of time spent on potato plants growing alone than on potato plants surrounded by non-host vegetation, and (2) no effect of potato plant density on colonization or tenure time. Overall, there was a 65~ recapture rate; beetles consistently stayed on the same plants they originally colonized, often for at least five days after release.
Bach, Catherine E.
"The Influence of Plant Dispersion on Movement Patterns of the Colorado Potato Beetle, Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae),"
The Great Lakes Entomologist: Vol. 15
, Article 4.
Available at: http://scholar.valpo.edu/tgle/vol15/iss4/4