Effects of planting date on damage caused by the banded sunflower moth (Lepidoptera: Cochylidae) in the northern great plains

  title={Effects of planting date on damage caused by the banded sunflower moth (Lepidoptera: Cochylidae) in the northern great plains},
  author={Christian Y. Oseto and Laurence D. Charlet and John D. Busacca},
  journal={Journal of Economic Entomology},
A 3-yr (1981, 1982, 1986) planting-date study of sunflower, Helianthus annuus L., was done at four sites. Achene damage caused by the banded sunflower moth, Cochylis hospes (Walsingham), was highest in sunflower planted early and lowest in sunflower planted late. Achene weight was highest in sunflower planted early in 1982 and 1986 and highest in sunflower planted late in 1981. The mean percentage of oil content varied among years and location. Planting sunflowers late in southeastern North… 
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