caa a22 4500 397571704 CHVBK 20180308164843.0 cr unu---uuuuu 161202e19960201xx s 000 0 eng 10.1093/ee/25.1.68 doi (NATIONALLICENCE)oxford-10.1093/ee/25.1.68 Population Dynamics of the Colorado Potato Beetle (Coleoptera: Chrysomelidae) on Horsenettle in Michigan [Elektronische Daten] [Jaime Mena-Covarrubias, Francis A. Drummond, Dean L. Haynes] Field studies during 1986-1988 in southwestern Michigan showed that horse-nettle, Solanum carolinense L., could be an important reservoir of Colorado potato beetle, Leptinotarsa decemlineata (Say), populations when potatoes, Solanum tuberosum L., are not planted. Early in the season, Colorado potato beetle laid most of its eggs on nonhost plants. Accumulated total larval mortality ranged between 82 and 99%. Predators with chewing mouth parts caused higher egg mortality at the beginning of the season whereas predators with piercing-sucking mouth parts preyed upon more egg masses by the middle of the season. Populations of Coleomegilla maculata De Geer were correlated with beetle 1st-instar densities and Perillus bioculatus F. was one of the most numerous predators of Colorado potato beetle. Given a choice of 7 potential host plant species, only horsenettle and potato were colonized by a Colorado potato beetle population adapted to horsenettle. Potato was a better host than horsenettle for this population, which has been isolated from potatoes for ≈40 yr. © 1996 Entomological Society of America Population Ecology nationallicence Leptinotarsa decemlineata nationallicence Solanum carolinense nationallicence population dynamics nationallicence wild host plants nationallicence Mena-Covarrubias Jaime Department of Entomology, Michigan State University, East Lansing, MI 48824 aut Drummond Francis A. Department of Entomology, Michigan State University, East Lansing, MI 48824 aut Haynes Dean L. Department of Entomology, Michigan State University, East Lansing, MI 48824 aut Environmental Entomology Oxford University Press 25/1(1996-02-01), 68-77 0046-225X 25:1<68 1996 25 ee https://doi.org/10.1093/ee/25.1.68 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.1.68 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mena-Covarrubias Jaime Department of Entomology, Michigan State University, East Lansing, MI 48824 aut NATIONALLICENCE 700 1- Drummond Francis A. Department of Entomology, Michigan State University, East Lansing, MI 48824 aut NATIONALLICENCE 700 1- Haynes Dean L. Department of Entomology, Michigan State University, East Lansing, MI 48824 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/1(1996-02-01), 68-77 0046-225X 25:1<68 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford