Cotton aphid response to nitrogen fertility in dryland cotton Academic Article uri icon

abstract

  • Cotton aphid, Aphis gossypii Glover, response to nitrogen fertility and planting date was investigated at the Texas Agricultural Experiment Station at Chillicothe in 1992-1994. Nitrogen was applied at 0, 32, 62 and 88 lb/acre just prior to planting cotton in late April, late May, and late June. Aphid density and percentage leaf nitrogen were estimated once a week. There was a significant, positive linear correlation between aphid density and fertility level in the late May planting date only. Nitrogen fertility levels of 62-88, 32-62 and 32 lb/acre are recommended for cotton planted in late April, late May and late June, respectively; these levels provided acceptable yields in each planting data without increasing severity of cotton aphid infestations.

published proceedings

  • Proc. of Beltwide Cotton Conf. Jan 1997, New Orleans, LA, USA

author list (cited authors)

  • Slosser, J. E., Pinchak, W. E., & Rummel, D. R.

complete list of authors

  • Slosser, JE||Pinchak, WE||Rummel, DR

publication date

  • December 1997