QUESTION: I have spent a lot of time, money and effort planting several food plots that usually end up infested with wild turnips. My plots are planted with alfalfa, oats, clover, etc.
Will a herbicide, such as Poast Plus, kill the wild turnips and not kill the other plants?
By the way, I've not seen any see sign or indications of the deer actually eating the wild turnips. If they did, then I guess I shouldn't be too concerned with getting rid of them. I just don't want the turnips impeding upon the growth of my target plants. --Jim A.
ANSWER: The first, and most desirable action you can take is to mow your plots before the turnip and unwanted plants flower, then work your seed. Otherwise, more unwanted plants are going to sprout.
The next step is to apply your herbicide.
The single best source I've found for information on herbicide application is "A Guide to Successful Wildlife Food Plots: Blending Science With Common Sense," by Graig Harper.
This guide is available from the University of Tennessee, Institute of Agriculture - or the Quality Deer Management Association. I highly recommend anyone considering the use of herbicides to first refer to this source as consultation.
Harper recommends applying either Select, Poast Plus and 2,4-D as a post-emergent (after the plants come up).