European corn borer model guidelines
by Ric Bessin, Extension Entomologist
University of Kentucky College of Agriculture
The adult ECB is about 20 to 26 mm in length and is recognized by wavy pattern on the wings.
- Base temperature for development: 50F
- Trap type: Hartstack cone trap or wire cone trap, lures changed monthly.
- Check traps weekly.
- Biofix: January 1 each year.
European corn borer life stages based on degree day measurements
|
First Generation |
|
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|
Percentage |
Pupa |
Adult |
Flight |
Egg |
Larval Stages |
|
|||||||||
|
1st |
2nd |
3rd |
4th |
5th |
|
||||||||||
|
Initiation |
250 |
420 |
550 |
610 |
750 |
970 |
1140 |
1290 |
1420 |
|
|||||
|
25% |
340 |
540 |
690 |
790 |
920 |
1070 |
1220 |
1360 |
1490 |
|
|||||
|
50% |
390 |
600 |
740 |
850 |
960 |
1110 |
1250 |
1390 |
1520 |
|
|||||
|
75% |
450 |
650 |
790 |
900 |
1000 |
1140 |
1280 |
1420 |
1550 |
|
|||||
|
Peak |
560 |
760 |
900 |
990 |
1090 |
1210 |
1350 |
1490 |
1620 |
|
|||||
|
Second Generation |
|||||||||||||||
|
Percentage |
Pupa |
Adult |
Flight |
Egg |
Larval Stages |
||||||||||
|
1st |
2nd |
3rd |
4th |
5th |
|||||||||||
|
Initiation |
1440 |
1620 |
1660 |
1740 |
1860 |
1970 |
2140 |
2250 |
2370 |
||||||
|
25% |
1580 |
1730 |
1880 |
2020 |
2160 |
2280 |
2420 |
2540 |
2800 |
||||||
|
50% |
1620 |
1780 |
1950 |
2110 |
2250 |
2370 |
2500 |
2630 |
2930 |
||||||
|
75% |
1660 |
1830 |
2030 |
2190 |
2330 |
2440 |
2580 |
2700 |
3060 |
||||||
|
Peak |
1730 |
1940 |
2190 |
2360 |
2490 |
2590 |
2720 |
2840 |
3500 |
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- More information: http://www.ca.uky.edu/entomology/entfacts/ef106.asp