07/21/15

WNY Sweet Corn Trap Network Report 7.21.15

Seventeen sites reporting this week. Six sites reporting European corn borer (ECB)-E and five sites with ECB-Z. Corn earworm (CEW) was caught at four sites with three sites high enough to require a 6 or 5 day spray interval (see spray table at bottom of post). Fall armyworm (FAW) numbers are still increasing with nine sites reporting trap catches. Western bean cutworm (WBC) was caught at 12 sites this week.

Below is a graph showing the average trap catch for all reporting sites since the beginning of the trapping season. Both FAW and WBC are still increasing. ECB-E had a small peak in early June and the second generation flight is predicted to begin when accumulated degree days reach about 1400 modified base 50. ECB-Z had a small peak in mid June and CEW has remained at low levels throughout the season to date.

Average sweet corn trap catches for all reporting sites from 5.25.15 - 7.21.15

Average sweet corn trap catches for all reporting sites from 5.25.15 – 7.21.15

 

Percent WBC moth emergence, data from University of Nebraska

Percent WBC moth emergence, data from
University of Nebraska

 

Location ECB-E ECB-Z CEW FAW WBC Total WBC
to date
DD
to date
Avoca (Steuben Co.) 0 0 0 0 0 0 1095.5
Avon (Livingston Co.) NA NA NA NA NA 1 1317.9
Baldwinsville (Onondaga Co.) 2 0 2 13 23 25 1263.4
Batavia (Genesee Co.) 0 32 3 0 3 5 974.7
Belfast (Allegany Co.) 2 0 0 0 0 0 1135.5
Bellona (Yates Co.) NA NA NA NA NA NA 1342.0
Eden (Erie Co.) 0 2 0 37 12 15 1179.1
Farmington (Ontario Co.) 2 2 0 0 3 3 1201.7
Hamlin (Monroe Co.) NA NA NA NA NA 0 1176.4
Kennedy (Chautauqua Co.) 1 1 0 2 1 3 1047.3
King Ferry (Cayuga Co.) 0 0 0 15 0 0 1279.4
Kirkville (Madison Co.) NA NA NA NA NA NA 1336.4
LeRoy (Genesee Co.) NA NA NA NA NA 0 1157.5
Lockport (Niagra Co.) 0 0 0 4 3 4 1150.4
Oswego (Oswego Co.) 2 0 0 0 6 8 1186.4
Owego (Tioga Co.) NA NA NA NA NA 0 1139.7
Pavilion (Genesee Co.) 0 0 1 67 24 26 1157.5
Penn Yan (Yates Co.) 0 1 0 23 4 5 1295.6
Plessis (Jefferson Co.) 0 0 0 18 13 14 1156.4
Preble (Cortland Co.) 0 0 0 7 3 4 1258.6
Seneca Castle (Ontario Co.) 4 0 0 0 2 2 1223.0
Sherwood (Cayuga Co.) NA NA NA NA NA NA 1279.4
Spencerport (Monroe Co.) NA NA NA NA NA 0 1317.9
Waterport (Orleans Co.) 0 0 0 0 0 0 1176.4
Williamson (Wayne Co.) 0 0 2 0 0 0 1130.9
ECB – European Corn Borer
CEW – Corn Earworm
FAW – Fall Armyworm
WBC – Western Bean Cutworm
NA – not available
DD – Degree Day (modified base 50F) accumulation
trap catches for the week of 7.14.15 – 7.21.15

cewtable