DRIFT INJURY: ISA says it is working to help solve the dicamba dilemma, “so growers can continue to have access to these important products and can be assured that their own and their neighbor’s crops won’t be affected.”

Searching for answers on dicamba damage

Iowa Soybean Association emphasizes the need for independent, objective research.

The American Soybean Association issued a press release last week regarding dicamba herbicide drift damage to non-tolerant soybeans and other crops. The reports of crop injury in 2017 continue to climb. ASA President Ron Moore, an Illinois farmer, reiterated ASA’s commitment to find a solution to the issue.

He said: “This issue isn’t going away; in fact, it’s only getting worse. There are now a reported 2,242 complaints affecting 3.1 million acres of soybeans in 21 of our 30 soybean-growing states, and we expect the number to continue to rise. This is unacceptable, and we are committed to establishing both a cause and a path forward on the dicamba issue, including what actions need to be taken to assure that soybean farmers can use the product safely without damaging their own or their neighbor’s crops.”

Need for independent research
Moore said ASA continues to strongly support independent research underway at several land-grant universities and coordinated by the national soybean checkoff to find answers. He added, “We need this independent university research, as well as other efforts by the national and state soybean checkoffs, to determine the causes of this widespread problem and how to address them, whether that be additional education, application restrictions or other actions to ensure that low-volatility formulations of dicamba stay on target and don’t damage neighboring crops.”

The American Soybean Association’s press release led me to wonder what the Iowa Soybean Association’s official stand is regarding what should be done. A few days later, my question was answered. As a long-time ISA member, I receive ISA’s weekly online newsletter. ISA on Sept. 28 offered the following comments surrounding the use of reformulated dicamba herbicide and its impact on soybeans and other crops.

ISA comments on dicamba use
“Harvesttime is here, a reminder that your success as a farmer and ours as an association is rooted in crop performance and productivity. One issue the Iowa Soybean Association is closely monitoring is the use of reformulated dicamba herbicide and its impact on targeted and off-target soybeans and other crops.

“Designed to drift less and be less volatile, the product is for over-the-top use on engineered dicamba-resistant soybeans and a valuable tool for farmers. As you are aware, herbicide-resistant weeds pose a major threat to soybean production and your bottom line. Evasive weeds, especially glyphosate-resistant Palmer amaranth, waterhemp, giant ragweed, marestail and common lambsquarters pose the dual threat of increased production costs and lower yields. Managing them effectively has taken on added importance and urgency.

More information being gathered as harvest unfolds
“New formulations of dicamba combined with tolerant soybean varieties were popular tools used by farmers and crop specialists this growing season. The effectiveness of these products lies in dicamba’s ability to mimic natural plant hormones but at high doses, causing abnormal growth and death. As anticipated, the integration of this product as an on-farm management tool for broadleaf weed control has not been entirely seamless. Some farmers have heralded the product’s effectiveness, while others have identified problems or expressed concerns.

“The ISA, Iowa Department of Agriculture and Land Stewardship, seed and tech providers, Iowa State University Extension and Outreach and others have received reports of suspected drift or volatilization and off-target herbicide events related to the use of dicamba. These reports are being investigated. Additional information will be known about the impact of these events as harvest unfolds.

“Regardless of the potential problem or its origin, what has received unanimous support from farmers and industry is the importance of having technology that works in the ongoing fight against weeds. To that end, the ISA is:

• Listening carefully to all reports provided by farmers regarding the use of dicamba and passing that input directly along to the industry.

• Seeking additional input, especially yield data, from farmers during combine visits and fall/winter grower meetings.

• Doing everything ISA can to connect the farmer and technical provider to resolve issues of mutual concern.

• Routinely communicating the science behind the product, label instructions and farmer and industry feedback using a variety of channels including the Iowa Soybean Review, and numerous social media portals (Facebook and Twitter; our handle is @iowasoybeans).

• Encouraging science-based and data-driven dialogue. It remains early in the life cycle of the technology to know the extent of its viability, yield impacts and how it may change 2018 planting decisions.

• Continuing to emphasize the importance of working together to collect target effectiveness, off-target symptom timing and severity, management and as-applied the climate/weather, topography, lab/chemical, yield and other relevant information. If there are problems, ISA can use data to determine the causes, what the impacts were/weren’t and what can collectively be done to continuously improve the technology and its application.

• Prompting more effective communication and engagement across and between all parties impacted by this technology including private and public researchers, farmers, viticulturists, gardeners, fruit tree growers, nursery owners and vegetable crop growers.

• Engaging in conversations with farmers and industry officials at state and national levels. On the national front, the American Soybean Association is having robust discussions about dicamba with its research, precision ag, and ag data teams as well as the environment, conservation and regulatory advocacy teams. These discussions will continue through harvest and winter.

• Inviting industry representatives to meet directly with farmers to receive input and answer questions about the product and grower experiences this growing season (including a session held earlier this month at a meeting of the ISA board).”

The ISA statement concludes: “We know that risk accompanies all new technologies. Even with the newly formulated dicamba and dicamba-resistant soybeans system, those risks are real. If not managed carefully, there will be overspray, drift and volatilization issues, losses and lawsuits. None are good for farmers and the soybean industry.

“ISA’s mission is to improve the competitiveness of the Iowa and U.S. soybean industries while providing information and expertise to help farmers improve their productivity. We remain focused on this issue, representing the needs of farmers and resolving the concerns of all involved. In the meantime, we welcome your input and ideas on this important matter.”


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