No threshold has been established. Also will control mites. Repeated use of this material is very disruptive to beneficials. Labeled for use on cucumbers, melons, and summer squash only. Repeated use of this material is very disruptive to beneficials.
Thorough coverage is important.
This material has no residual value and repeated applications are necessary. For plants with dense foliage the higher gallonage rate may be necessary. Oil will reduce populations temporarily, but has no residual and requires repeat applications and thorough coverage. Permit required from county agricultural commissioner for purchase or use. Do not apply within this many days of harvest.