Entomologist at University of Minnesota NWROC - studies IPM of insect pests in field crops, spatial distribution, remote sensing, & resistance management.
Crookston, MN
Joined January 2013
- Tweets233
- Following67
- Followers250
- Likes22
Average aphid trap counts down again this week. Some still out there though. Keep an eye on remaining fields. Cumulative seasonal vector risk is high this year.
Check out all the data, maps and graphs at:
aphidalert.blogspot.com
Aphid numbers are down again this week. But our traps monitor flying aphids and it's important to remember that our more recent outbreaks in commercial fields have been in late Aug / early Sept.
Check out all the data, graphs and maps at:
aphidalert.blogspot.com
There was a significant drop in aphid captures this week. Some species increased (green peach was one) but soybean aphids had a big drop.
But vector numbes are still muchhigher than last year's and our 13 yr average.
chk out the data, maps & graphs at:
aphidalert.blogspot.com
Another big jump in aphid numbers in MN & ND,mostly driven by soybean aphid numbers. Green peach and other vectors numerous as well.
Checout all the data, maps, and some graphs comparing 2026 populations to our 2013-2025 average, at:
aphidalert.blogspot.com
Aphid numbers continue sharp August rise! Green peach aphid recovered this week in 4 locations (recommend scouting seed & production fields). Vector numbers & PVY Risk Index increased over last week.
Check out all the data, maps and tables at:
aphidalert.blogspot.com
Aphid numbers continuing to rise (up 30% over last week). Soybean and small grain aphids both numerous and well distributed. High diversity of vector species as well.
Check out all the data and maps at:
aphidalert.blogspot.com
Aphid vector numbers took a huge jump this week. Soybean and small grain aphids numbers way up, other vector as well. Scouting and appropriate management recommended.
Chk out all the data and maps at:
aphidalert.blogspot.com
Aphid vector numbers close to last week's. Soybean & cereal aphids common. Watch for more cereal aphids as grain matures.
Check out all the data, graphs and maps at:
aphidalert.blogpot.com
Aphid trap numbers remain low, but regaional tepmeratures are lowering which will facilitate increased aphid reproduction.
Check out all the data and maps at:
aphidalert.blogspot.com
Aphid numbers remain low this week but are beginning to rise - on schedule for our mid-seaons inincrease in aphids.
Soybean and English Grain Aphids remain most numerous.
for all the maps and data chk out:
aphidalert.blogspot. com
More sites returning trap captures. Aphid numbers still low; unfortunately recent weather systems, temperatures and growing canopies probably means we'll soon see higher numbers.
Check out all the data, maps and info at:
aphidalert.blogspot.com
A slow start to the aphid trapping season, but some vectors recovered at some locations.
Vectors are flying, time to start scouting.
Check out this week's capture data at:
Aphidalert.blogspot.com
Overall aphid nos. down. Green peach aphid at two locations (1 in MN and 1 in ND) and potato aphids still active in Central MN. Overall, pops following the 13yr avg
Have a great week, and hope your harvest is going well!
Chk out the data, graphs & maps:
aphidalert.blogspot.com
aphid numbers /trap well down this week. September crash may be underway. Most species still across the regionbut all no.s down.
Check out all the data, grphs and maps at:
aphidalert.blogspot.com
Aphid numbers up from last week. Green peach aphid similar to last week's and represented across the region. Late season no.s are concerning, approp. scouting & mgmt advised for fields not yet vine killed.
Check out all the data, graphs and maps at:
aphidalert.blogspot.com
Aphid numbers slightly down but twice the number of Green peach aphid across the region. GPA no.s now higher than past year. Flights still ongoing...
Check out all the data, maps and graphs at:
aphidalert.blogspot.com
Aphid numbers lower this week but Green Peach Aphids were recovered at several sites across the region. Scouting & mgmt recommended.
Chk out the data, graphs and maps at:
aphidalert.blogspot.com
Aphid no.s much higher than the last trapping period. Green peach recovered at multiple sites. PVY Vector Risk higher than 13yr average but behind last yr. Scouting & appropriate mgmt recommended.
Check out the data, charts and maps at:
aphidalert.blogspot.com
Aphid numbers (& all flying insects) were down across the region again this week (wet weather?). But still scout & manage fields - if the vine's green, by an aphid it can be seen!
check out all the data, graphs & maps at:
aphidalert.blogspot.com
Aphid capture numbers 3X higher than last week. Late July/early Aug flights have started. Soybean, small grain and several other species all increased.
Check out all the data, graphs and maps at:
aphidalert.blogspot.com
