Value-Added Products – Results showed that the addition of a value-added product(s) may have an advantage on final yield; however, there was only one treatment that was statistically better than the untreated check (Table 1).

White Mold Products – The study concluded that adding a fungicide application reduced secondary white mold infection as compared to the untreated check. However, the addition of more than one product or application timing did not appear to have a significant advantage to yield (Table 2).

Aphid Products – The study was conducted on an aphid population with a known Group 3A pyrethroid resistance with the untreated check having, on average, over 2,000 aphids per plant at the seven days after application evaluation (Table 3).

Data were put into two tiers based on yields and counts. Tier 1 included products or mixes that were not group 3A insecticides (pyrethroids) alone and generally had better aphid control and higher yields. Tier 2 consisted of only 3A active ingredients. Both tiers were statistically better than the untreated checks for aphid counts at 3 and 7 days after application. Tier 1 products compared to the untreated check generated a yield difference between 1.0 to 14.1 bu/A with an average gain of 8.0 bu/A.

There was a strong negative correlation between the aphid population and soybean yields suggesting that 76% of the difference in yield was directly tied to the aphid infestation. This gives confidence in the data set for making decisions on aphid control.

Growers should use the data sets as a guide to visit with their crop consultants or local suppliers to determine products that provide the greatest return on investment based on local and supplier pricing and availability of products.

Full publications are published on our website, www. nxtgenag.com, under the “Latest News” tab and “Public Grant Research Studies” page.