caa a22 4500 38636186X CHVBK 20180307111918.0 cr unu---uuuuu 161130e198902 xx s 000 0 eng 10.4039/Ent121169-2 doi S0008347X00028613 pii (NATIONALLICENCE)cambridge-10.4039/Ent121169-2 A SIMULATION MODEL OF NORTHERN CORN ROOTWORM, DIABROTICA BARBERI SMITH AND LAWRENCE (COLEOPTERA: CHRYSOMELIDAE), POPULATION DYNAMICS AND OVIPOSITION: SIGNIFICANCE OF HOST PLANT PHENOLOGY [Elektronische Daten] Based on field and laboratory research, a simulation model was developed that describes the within-season population dynamics and oviposition of adult northern corn rootworm beetles, Diabrotica barberi Smith and Lawrence, in field corn, Zea mays L. Particular emphasis was placed on the role of host plant phenology. Overall goals were to examine the contribution of insect dispersal to the dynamics of single fields, and provide a means of examining the factors influencing insect/plant synchrony and the relationship between adult abundance, oviposition, and crop phenology. The model is process-oriented and integrates component models for corn phenology, and adult emergence, mortality, dispersal, reproductive development, and oviposition. Comparison of field data with simulations excluding dispersal generally indicated a net emigration of beetles from corn fields on a season-long basis; however, the timing and magnitude of dispersal from fields were strongly influenced by the relative timing of corn flowering, beetle sex, and the reproductive maturity of females. Simulation and field data were used to describe and estimate the parameters of a component model for dispersal incorporating these features. Various component models and the overall system model were validated against independent field data. The model provided adequate prediction of adult emergence and crop phenology for three varieties on which it was based, but consistently underpredicted total oviposition and poorly predicted the phenology of two different corn varieties. Overall, the model accurately predicted seasonal population trends, the relative abundance of mature females, and the relationship between adult abundance and oviposition. Copyright © Entomological Society of Canada 1989 Naranjo Steven E. Department of Entomology, Comstock Hall, Cornell University, Ithaca, New York, USA 14853 Sawyer Alan J. USDA-ARS, Plant Protection Research Unit, U.S. Plant, Soil and Nutrition Laboratory, Tower Road, Ithaca, New York, USA 14853 The Canadian Entomologist Cambridge University Press 121/2(1989-02), 169-191 0008-347X 121:2<169 1989 121 TCE https://doi.org/10.4039/Ent121169-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent121169-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Naranjo Steven E. Department of Entomology, Comstock Hall, Cornell University, Ithaca, New York, USA 14853 NATIONALLICENCE 700 1- Sawyer Alan J. USDA-ARS, Plant Protection Research Unit, U.S. Plant, Soil and Nutrition Laboratory, Tower Road, Ithaca, New York, USA 14853 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 121/2(1989-02), 169-191 0008-347X 121:2<169 1989 121 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge