Early Season Pest Management
Notes for early season issues you may be dealing with:
We are getting some reports that peanuts treated with acephate (Orthene) are either not making a stand or are making a stand slowly. On occasion we have seen slightly lower stands with acephate applied in the seed furrow or a delay in emergence. However, this has been a very infrequent occurrence. As we look to 2012, especially if there is no registrant for aldicarb (Temik or a generic form of Temik,) we will need to address this more clearly in our recommendations.
The other alternative to aldicarb is phorate (Thimet and Phorate products.) While I am not aware of any stand issues with this insecticide, on sandy soils with low organic matter content you can see injury. The symptoms are similar to salt accumulation on older leaves and ultimately those leaves may shed. Generally we do not see a major issue and the value of thrips control out-weighs the generally cosmetic injury. However, if you have anyone spraying Basagran at relatively high rates (1 quart/acre plus crop oil) this injury may increase. However, yield reductions seldom occur.
We will certainly grow to “wish for the days of Temik” given some of these issues.
In terms of weed control, there may be some questions about spraying or not spraying given the dry weather. In my experience the weeds will only get bigger, so I would encourage growers to make applications early when in doubt. Also, encourage growers to apply herbicides when weeds are small, especially paraquat and PPO inhibitors (Cobra, Ultra Blazer.)
Article first appeared as North Carolina Peanut Note (PNNC-2011-011)