@article{nault_hanzlik_kennedy_1997, title={Location and abundance of adult Colorado potato beetles (Coleoptera: Chrysomelidae) following potato harvest}, volume={16}, ISSN={["0261-2194"]}, DOI={10.1016/S0261-2194(97)00036-7}, abstractNote={Colorado potato beetle, Leptinotarsa decemlineata (Say), population biology was investigated after Irish potatoes, Solanum tuberosum (L.), were harvested in eastern North Carolina. The abundance of adult Colorado potato beetles following potato harvest was estimated by taking more than 450 visual transects in 45 commercial potato fields in July and August, 1993 and 1994. Few second- and third-generation Colorado potato beetle egg masses and larvae, volunteer potato plants and wild hosts such as horsenettle, S. carolinense L., were encountered, suggesting that Colorado potato beetle generations produced after potatoes are harvested in June and early July do not contribute significantly to the overall overwintering population. Location and abundance of overwintering adult Colorado potato beetles within the soil in fields previously planted in potato were determined. Densities of overwintering adults in soil along field edges were greater than those within fields prior to emergence in the spring, suggesting that adults moved toward field edges to overwinter. However, given that the area within potato fields was much greater than the area along field edges, the estimated total number of overwintering adults within fields was greater than along the edges. In light of these results, tillage at different times between crop production seasons was evaluated for its effect on overwintering Colorado potato beetle survival, but was found to have little effect.}, number={6}, journal={CROP PROTECTION}, author={Nault, BA and Hanzlik, MW and Kennedy, GG}, year={1997}, month={Sep}, pages={511–518} }
 @article{hanzlik_kennedy_sanders_monks_1997, title={Response of European corn borer (Ostrinia nubilalis, Hubner) to two potato hybrids selected for resistance to Colorado potato beetle}, volume={16}, ISSN={["0261-2194"]}, DOI={10.1016/S0261-2194(97)00009-4}, abstractNote={The response of the European corn borer, Ostrinia nubilalis (Hubner) to K411-2 and NYL 235-4, fifth- and sixth-generation potato accessions derived from crosses between Solanum tuberosum L. and S. berthaultii (Hawkes) and selected for resistance to Colorado potato beetle (Leptinotarsa decemlineata, Say) and potato leafhopper (Empoasca fabae, Harris), was measured in field and greenhouse experiments. In one field test, which did not include NYL 235-4, the incidence of corn-borer damaged stems was eight times higher in the commercial potato varieties Atlantic, Superior and Norland than in K411-2. In a later field test, there were 11 times more European corn-borer damaged potato stems on Atlantic than on NYL 235-4. In a choice experiment, European corn-borer moths deposited significantly more egg masses on the susceptible Kennebec variety (72.9%) than on NYL 235-4 (27.1%), but in the absence of a choice, equal numbers of egg masses were deposited on both varieties. In a greenhouse experiment, fewer European corn-borer larvae (44%) were established on NYL 235-4 than on Kennebec plants.}, number={5}, journal={CROP PROTECTION}, author={Hanzlik, MW and Kennedy, GG and Sanders, DC and Monks, DW}, year={1997}, month={Aug}, pages={487–490} }