Seventeen sites reporting this week. European corn borer (ECB-E) and ECB -Z were caught at five sites with a high count of 12 ECB-Z at Penn Yan.  Fall army worm was caught at three sites this week and corn earworm (CEW) was caught at two sites. CEW counts were low enough at the two sites to not require a spray.  Still no western bean cutworm (WBC) caught this season.

Location ECB-E ECB-Z CEW FAW WBC Total WBC
to date
Avoca (Steuben Co.) 0 0 0 0 0 0
Avon (Livingston Co.) 0 0 0 NA 0 0
Baldwinsville (Onondaga Co.) 1 0 0 0 0 0
Batavia (Genesee Co.) 0 0 0 1 0 0
Bellona (Yates Co.) 0 0 0 0 0 0
Eden (Erie Co.) 0 4 0 1 0 0
Farmington (Ontario Co.) 0 0 1 0 0 0
Hamlin (Monroe Co.) 0 3 0 0 0 0
Kennedy (Chautauqua Co.) 4 0 0 1 0 0
King Ferry (Cayuga Co.) NA NA NA NA NA NA
Kirkville (Madison Co.) NA NA NA NA NA NA
LeRoy (Genesee Co.) 1 2 0 0 0 0
Lockport (Niagra Co.) NA NA NA NA NA 0
Oswego (Oswego Co.) 0 0 0 0 0 0
Owego (Tioga Co.) 0 0 0 0 0 0
Pavilion (Genesee Co.) 0 0 1 0 0 0
Penn Yan (Yates Co.) 1 12 0 0 NA NA
Plessis (Jefferson Co.) NA NA NA NA NA NA
Preble (Cortland Co.) NA NA NA NA NA NA
Seneca Castle (Ontario Co.) 3 4 0 0 0 0
Sherwood (Cayuga Co.) NA NA NA NA NA NA
Spencerport (Monroe Co.) NA NA NA NA NA 0
Waterport (Orleans Co.) NA NA NA 0 0 0
Williamson (Wayne Co.) 0 0 0 0 0 0
ECB – European Corn Borer
CEW – Corn Earworm
FAW – Fall Armyworm
WBC – Western Bean Cutworm
NA – not available
trap catches for the week of 6.24.14 – 7.1.14

 

The first flight of ECB-E has peaked and the second flight will begin to emerge at about 1400 modified base 50 degree days. The degree days for reporting sites range from 686-934 modified base 50, with an average of 816. ECB and CEW larvae from eggs laid by moths during the peak flight will still be found in emerging tassels.  Continue scouting emerging tassels (threshold 15% infested plants) for larvae, and the ear zone in silk stage fields (5% threshold) for small larvae and egg masses. While scouting two separate fields today, I observed both ECB larvae and damage in the tassels as well as FAW damage on leaves.