Department of Entomology, Ohio Agricultural Research and Development Center, The Ohio State University, 1680 Madison Ave, Wooster, Ohio, 44691, USA
*Corresponding author's current address: Department of Crop Science and hybrids maturity, pest control interventions (Bt maize Production, Botswana College of Agriculture, Private Bag 0027, Gaborone, Botswana. E-mail: mobopile@gmail.com, mobopile@bca.bw
Online published on 24 July, 2012.
three year study was conducted at south Charleston and Wooster, Ohio, UsA to determine the influence of planting date, transgenic maize and seed treatment on distribution and population dynamics of corn rootworm (Diabrotica virgifera virgifera, Coleoptera: Chrysomelidae), adult oviposition. the results showed the distribution of adult corn rootworm significantly skewed to late planted maize than early planted maize. However hybrid and seed treatment did not significantly influence the distribution and population dynamics of corn rootworm beetles. A significant increase of corn rootworm adult in late planted maize was possibly due to emigration of beetle out of earlier planted maize into late planted maize to feed on newer silk and consequently lay eggs. Further significantly high densities of eggs were observed on late planted maize.
Maize, phenological stages, distribution, Corn Rootworm, oviposition
