Higher populations of plants increase the need for water. There will be a time that peppers will suffer from lack of water under nonirrigated conditions, so consider irrigation as a cost, whether it is bought or not. Weed Control Roundup and Gramoxone are available for preplant burndown. Treflan and Dacthal are available for preemerge. Poast can be used for postemerge grass control.
Nothing is available for sicklepod or large-seeded broadleaf weeds, so avoid fields with histories.
See Extension Publication 1532 for details. The major problem on pimiento seedlings is the flea beetle, and the major fruit problems are European corn borer and pepper weevil. Synthetic pyrethroids will take care of both stages, but heed labels on maximum amounts. The major disease problem with pimiento is anthracnose pod rot. A weekly spray schedule with a copper-based fungicide to control anthracnose helps in the control of all pepper diseases.