Cadre/Impose Application on Late-Planted Peanuts Peanut Notes No. 95 2019

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Peanuts planted in June will need all the help they can get in order to make a crop in a timely manner. If August, September, and October are like 2018, we should have plenty of heat units and moisture to mature a late-planted crop. But this is not a given. We could have a cooler summer, and rainfall could be limited. There are no guarantees. With that said, minimize injury from herbicides and other stresses as much as possible. Cadre or Impose (imazapic is the active ingredient) can slow growth of peanuts for a period of time after application. Plenty of data shows that peanut grow well after application and the slower growth does not affect yield. Certainly, the weed control from this herbicide is extremely valuable in many fields. But, don’t get in a big rush to apply the herbicide.

I have always felt like Cadre/Impose is most effective when applied as the second postemergence spray. This would often be about a month after planting depending on the effectiveness of soil-applied herbicides at planting and the first POST spray. Cadre/Impose does have residual control but we often apply it to emerged weeds, killing them and getting residual control for later flushes of weeds.