Trap Catches Identified Week of Aug 08-12

Greetings!

Aphid vector numbers remain very low compared to last year, and the associated PVY Risk Index values are also not accumulating as they did last year.  But we have reports from SW Minnesota that the numbers of soybean aphids in fields there are increasing rapidly and many winged forms are being found.  Check out Bruce Potter's SW MN IPM Stuff newsletter at:

http://swroc.cfans.umn.edu/ipm-stuff-2016-15
 
If you've got soybeans in, you really need to read Bruce's page!  He presents a lot of information about why you should still be scouting soybeans for aphids - time of year is a lot less important than plant stage for determining if soybeans are still susceptible to yield loss from aphids.

If we get some strong southerly winds, we could be looking at some major immigration events into the upper Red River Valley.  

Meanwhile, with the potential for immigrating soybean aphids, we're still not out of the woods.  Keep Scouting...

 

Aphid Alert Trap Catch Identified Week of Aug08-12

 

The Seasonal Aphid Alert Trap Catches for 2016