Seasonal abundance and parasitism of the sunflower beetle (Coleoptera: Chrysomelidae) on cultivated sunflower in the Northern Great Plains

  title={Seasonal abundance and parasitism of the sunflower beetle (Coleoptera: Chrysomelidae) on cultivated sunflower in the Northern Great Plains},
  author={Laurence D. Charlet},
  journal={Journal of Economic Entomology},
  • L. Charlet
  • Published 1 June 1992
  • Biology
  • Journal of Economic Entomology
Postdiapause adults of the sunflower beetle, Zygogramma exclamationis (F.), appeared in plots of sunflower, Helianthus annuus L., between 28 May and 9 June and were present until mid-July 1985-1987. Peak density of adults occurred between 13 and 23 june when plants had 6-15 leaves. Eggs were present on plants for approximately 1 mo (June) with maximum egg densities occurring between 13 and 26 June. Larvae were initially observed between 10 and 19 June when plants had 5-12 leaves and were… 
Sunflower Beetle (Coleoptera: Chrysomelidae) Oviposition, Overwintering, and Impact of Cultivation on Adult Survival in Cultivated Sunflower
The sunflower beetle, Zygogramma exclamationis (Fitch), is the most damaging defoliator of sunflower, Helianthus spp., in North America. Studies were conducted from 1995 to 1997 in North Dakota to
Incidence of sunflower beetle (Coleoptera :Chrysomelidae) and parasitism of its larvae by Myiopharus macellus (Reinhard) (Diptera: Tachinidae) in native sunflowers in North Dakota and Minnesota
Investigating native species of sunflower in North Dakota and Minnesota to determine sunflower beetle incidence and the larval parasitoid fauna resulted in additional natural enemies to augment the biological control of the sunflower buretle in cultivated sunflower.
Impact of Planting Date on Sunflower Beetle (Coleoptera: Chrysomelidae) Infestation, Damage, and Parasitism in Cultivated Sunflower
The results of this investigation showed the potential of delayed planting date as an effective integrated pest management tactic to reduce sunflower beetle adults, larvae, and their resulting defoliation.
Sunflower Beetle (Coleoptera: Chrysomelidae): Pattern of Larval Distribution and Parasitism in Cultivated Sunflower Fields
Over a three year period, fields were sampled for sunflower beetle larvae and for larvae of the endoparasitoid, Myiopharus macellus (Reinhard), and the data supports aggregated distributions for M. mACEllus, but is less clear than that for the sunflower beetles.
Host plant utilization and population abundance of three tropical species of Cassidinae (Coleoptera: Chrysomelidae)
Significant positive correlations between Cassidinae numbers and temperature showed that this parameter could influence ovipositing and mating activities.
Structure and Dynamics of a Parasitoid Community Attacking Larvae of Psilocorsis quercicella (Lepidoptera: Oecophoridae)
  • J. Lill
  • Biology, Environmental Science
  • 1999
A consistent increase in parasitoid species richness from G1 to G2 was found for all 3 yr, with several generalist parasitoids emerging only from larvae collected during G2, and host-switching behaviors related to seasonal differences in the abundance of a congener, P. reflexella Clemens, are hypothesized to contribute to the increased Parasitoid diversity in G2.
Natural enemies of Coelomera lanio (Coleoptera: Chrysomelidae) in the region of Viçosa, Minas Gerais, Brazil.
The majority of the egg masses of C. lanio collected in the field were found to be parasitised by a species of the family Eulophidae (Hymenoptera), while larvae of this pest were attacked by a parasitoid of thefamily Tachinidae (Diptera).
Cuticular hydrocarbons of the sunflower beetle, Zygogramma exclamationis.
  • D. Nelson, L. Charlet
  • Chemistry
    Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology
  • 2003
A new species of Myiopharus Brauer and Bergenstamm (Diptera: Tachinidae) parasitic on adults of the sunflower beetle, Zygogramma exclamationis (Fabricius)
A new species of the New World genus Myiopharus neilli is described from the Great Plains, bringing the number of species of this genus known from America north of Mexico to 15.
Erixestus zygogrammae Cave and Grissell (Hymenoptera: Pteromalidae): An exotic egg parasitoid of Zygogramma bicolorata Pallister (Coleoptera: Chrysomelidae) in Australia
The solitary endoparasitoid Erixestus zygogrammae has been identified from eggs of the parthenium weed biocontrol agent Zygogramma bicolorata Pallister laid on ragweed in Brisbane. It has been