Mixtures of Herbicides and Acephate Peanut Notes No. 80 2019

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If thrips injury is still present applying acephate is a good idea (see previous Peanut Notes). Based on our work in North Carolina, acephate can be applied with the postemergence herbicides we use in peanuts. We have looked at many of the combinations and have not observed reductions in pest control or increased peanut injury. However, if for some reason you have a severe injury from thrips, it is best to apply acephate and let plants recover before applying contact herbicides, especially paraquat-containing herbicides. In most fields that received in-furrow insecticides the level of thrips injury is not high enough to be concerned about the mixture of herbicide and acephate causing a yield reduction from the combined injury of the two pesticides.