There will likely be a spillover effect this growing season from the record amount of prevent plant acres in 2019. When that PP ground goes back into production, AMVAC Product Development Manager Dr. Rich Zollinger expects to see more weed issues. “Some of the weeds were left to go to seed despite the efforts of the grower. Those seeds will now re-enter the seedbank and because of that you may have some weed species that you haven’t dealt with before.” With planting delays, it may be a challenge to get apply a pre-emerge herbicide. That will increase the demand for weed management later on. “If they can spray when the weeds are in that sweet spot of two-to-three inches and if they can use herbicides with effective multiple modes-of-action, that demonstrates the use of more management if you’re not able to use the soil-applied residuals.” Zollinger previously served as an Extension weed scientist at North Dakota State University.
