Roundup Ready Soybeans Use 2-5 Times More Herbicides Than Non-GE Varieties
From NelsonFarm.net
by Dr. Charles Benbrook
For those unfamiliar with the basics of soybean herbicides and the impacts of GMO/RR (Roundup Ready) soybeans on use rates, the simple facts are these.
In the early to mid-1980s, most soybean herbicides were applied in combinations, and at a combined rate between 0.75 to 1.5 pounds per acre. These are sometimes today called the “traditional” soybean herbicides or weed management systems (see below).
By the mid- to late 1980s and throughout the 1990s, the pesticide industry developed and marketed dozens of new, low-dose soybean herbicides in the imidazolinone and sulfonylurea classes. These products are applied typically in the 0.05 pounds active ingredient per acre to 0.2 pounds per acre range. Often, two active ingredients are required, resulting in total per acre application rates of 0.1 to 0.3 pounds per acre.




