This year we conducted side-by-side evaluations of an untreated variety against the same variety treated with Clariva™ to get a feel for its benefits. There have been a lot of new seed treatments out there so we evaluate them to see if they show promise. Sometimes they don’t pan out and we award them the ‘Monkey Dust’ title for products that don’t really do anything. Clariva™ was not one of these.
Clariva™ is a biological treatment that infects and kills nematodes. When the nematodes die, they release more spores that will infest other nematodes, in turn killing them. Sounds like a nematode nightmare.
In our testing, Clariva™ provided a positive response. The Clariva™ treated seed outperformed the untreated seed in 19 of 29 plots. This shows that Clariva™ does work. However, the performance gap was quite slim at +0.8 bushels overall.
So what can we take away from this? For Clariva™ to work, we need to have enough nematodes to effect the yield. Many of the plots that the product was planted in are not considered at risk for nematodes. Looking at the map below we can see that in WI, MI, NE and SD response was anemic or mixed. These areas are not known to be high risk for cyst. In the areas of higher risk for cyst such as Southern MN and Northeast IA the response was positive. Again, the response was positive but not by a large margin.
The goal of our testing was to see if Clariva™ was worth adding as a general option for seed treatment. Unfortunately the results are not strong enough for that. Clariva™ is showing a positive response but I would only be looking at it as an option for severely infested fields.