Trap Catches to Sept 09, 2022.

Aphid numbers continue to decline as does the accumulation of PVY Vector Risk numbers.  Many locations have already vine killed or are getting ready to do so.  The season is rolling up to it's end, but the growth of aphid vector populations late in the season, especially the appearance of relatively numerous and well-distributed Green Peach Aphid, means this year ended with high PVY Vector Risk Index values.  The number of total vectors captured across the region was a little more than half that of last week, as was the total capture/trap.   

(Click on image for larger version)

Green Peach Aphid numbers were lower again this week, while there was a slight increase in Soybean Aphid and in Buckthorn Aphid captures over last week.  All of the cereal aphid numbers have dropped to the point they are only occasional captures and the only species with remaining relatively numerous numbers was Cotton/Melon Aphid.      

Have a great Weekend!  Keep scouting, and we'll keep counting...  The seasonal wrap-up will be out soon.

Click on any image below for full-scale version.

Cumulative PVY Vector Risk Index to Sep 09, 2022

Cumulative PVY Vector Risk Index to Sept 10, 2021 (please note different scale)

Aphid Species Capture and PVY Vector Risk Index for the week ending Sep 09, 2022

Cumulative Aphid Species Capture and PVY Vector Risk Index to Sep 09, 2022