Winter annual weeds become prevalent in late March and early April, and they can compete with wheat and barley, slowing the rate of crop development and potentially reducing yield.
If winter annual weeds like common chickweed, henbit, purple deadnettle, marestail/horseweed and others emerge with the small grain and are left unchecked, the potential yield hit can be great.
Looking in the Penn State Agronomy Guide (Table 2.5-6), we see that Harmony Extra (different from Harmony SG) probably offers the broadest spectrum for broadleaf weed control, though no single product controls the full spectrum of weeds that often infest wheat fields.
By Harold Watters, Ohio State University Extension
One of my buddies often takes calls and visits fields where a problem has occurred. And although he doesn’t say this to the grower or crop consultant he visits with, afterward he tells me “it’s the agronomy, stupid.”
I have taught from the Ohio Agronomy Guide this year and used it for some excerpts a couple of other times as well and even I forget what is in there. I sat last evening with one of our county folks a good one, Bruce Clevenger and an industry agronomist. We went through the Agronomy Guide and just kept finding these words of wisdom. I hope you will read through the publication but I want to share some of the nuggets that Bruce and I found:
Now is the Time to Consider the Potential of Non-GMO Soybeans in Northern Pennsylvania.
Anna Busch, Union County agronomy educator, and Dave Hartman, Lycoming County livestock educator, are looking at the yield and potential market premium for non-GMO soybeans in north-central Pennsylvania.
In 2020 they grew and evaluated sulfonylurea-tolerant soybeans. STS is a non-GMO genetic trait. STS soybeans can be safely sprayed with higher rates of sulfonylurea herbicides such as Synchrony.
Soybean producers in northern Pennsylvania often struggle to find marketing opportunities because there arenât many local grain buyers. STS varieties allow producers to grow soybeans for a niche market and price premium while providing additional herbicide options for the control of difficult weeds, such as burcucumber.