Under dryland conditions, the choice should be soybeans anytime after the first week of July. In our grain sorghum variety trials conducted from 1990 to 1995, we found that there is at least a one in five chance that the sorghum crop will be a total failure when planted from July 10 to 20. If the field can be irrigated, the question is more difficult to answer. When planting beans late in the season, its useful to know what yield potential to expect. Potato leafhopper adults and nymphs continue to be active in beans throughout the state.
Weather conditions continue to be favorable for damage, especially in drought stressed fields.
The treatment threshold is 5 per sweep during prebloom and 10 per sweep during bloom. In snap beans, this threshold should be reduced by one-half if thrips are also present, especially if the field is drought stressed. Asana, Lannate or Orthene will provide control of both pests. Mite activity has increased with the hot, dry weather. Dimethoate is still the first choice for mite control but needs to be applied before mites explode.