Cyst Nematode Counts Crash in 2013

Our soybean cyst nematode counts from the fall of 2013 sampling brought us some surprise results. Cyst counts have dropped dramatically from the direction we had seen in the pas years’ samples. This was not just a one field phenomenon but across all fields sampled.

I would like someone to take a shot of explaining this to me. Is it weather related? We have been using PI88788 soybeans for many years on these fields in a corn soybean rotation.