July 3, 2000 Volume 9 No. 16 Update on Pest Management and Crop Development
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Current DD accumulations |
43°F |
50°F |
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(Geneva 1/1-7/3): |
1500 |
908 |
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(Geneva 1999 1/1-7/3): |
1555 |
1009 |
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(Geneva "Normal" 1/1-7/3): |
1426 |
967 |
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(Highland 1/1-7/3): |
1732 |
1099 |
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Coming Events: |
Ranges: |
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American plum borer 1st flight subsides |
848-1668 |
440-1205 |
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Apple maggot 1st catch |
1045-1671 |
629-1078 |
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Codling moth 1st flight subsides |
1112-2124 |
673-1412 |
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Lesser appleworm 2nd flight begins |
1152-2302 |
778-1531 |
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Peachtree borer peak flight |
864-2241 |
506-1494 |
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Redbanded leafroller 2nd flight begins |
1096-2029 |
656-1381 |
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Spotted tentiform leafminer 2nd flight peak |
1266-2005 |
775-1355 |
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Geneva |
6/19 |
6/22 |
6/26 |
6/29 |
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Redbanded Leafroller |
0.0 |
0.0 |
0.0* |
0.5 |
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Spotted Tentiform Leafminer |
174 |
547 |
378 |
399 |
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Oriental Fruit Moth |
0.3 |
0.0 |
1.0 |
1.5 |
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Lesser Appleworm |
0.5 |
0.0 |
1.3 |
1.0 |
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Codling Moth |
14.2 |
5.3 |
5.3 |
13.7 |
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San Jose Scale |
0.1 |
0.0 |
0.0 |
0.3 |
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Pandemis Leafroller |
2.1 |
0.5 |
0.3 |
0.2 |
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American Plum Borer |
0.1 |
1.0 |
0.4 |
0.2 |
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Lesser Peachtree Borer |
3.6 |
2.2 |
3.0 |
5.5 |
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Peachtree Borer |
0.0 |
0.0 |
0.1* |
0.3 |
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Obliquebanded Leafroller |
4.6 |
- |
4.1 |
2.0 |
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Apple Maggot |
- |
0.0 |
0.0 |
0.0 |
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Dogwood Borer |
- |
0.2* |
0.1 |
0.3 |
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Highland (Dick Straub, Peter Jentsch): |
6/12 |
6/19 |
6/26 |
7/3 |
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Redbanded Leafroller |
0.0 |
0.0 |
0.6* |
0.9 |
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Spotted Tentiform Leafminer |
27.7 |
75.6 |
49.6 |
42.5 |
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Oriental Fruit Moth |
0.1 |
0.1 |
0.0 |
0.4 |
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Codling Moth |
1.1 |
3.4 |
4.7 |
3.6 |
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Pear Psylla (eggs/leaf) |
12.3 |
- |
1.8 |
0.4 |
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Pear Psylla (nymphs/leaf) |
2.0 |
- |
2.2 |
0.4 |
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Lesser Peachtree Borer |
0.2 |
0.1 |
0.3 |
0.3 |
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Lesser Appleworm |
- |
1.0 |
0.0 |
0.4 |
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Dogwood Borer |
0.0 |
0.0 |
0.0 |
0.0 |
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American Plum Borer |
1.4 |
0.6 |
0.3 |
0.1 |
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Obliquebanded Leafroller |
1.0 |
0.6 |
0.5 |
0.6 |
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Tufted Apple Budmoth |
1.0 |
0.6 |
1.1 |
0.0 |
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* = 1st catch |
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Geneva: |
Spotted Tentiform Leafminer 2nd flight began 6/15. Degree days (base 43 F) since then = 481. Obliquebanded Leafroller flight began 6/8. Degree days (base 43 F) since then = 644. Larval hatch 50% complete. Codling Moth flight began 5/19; DD50 since then = 582. Comstock Mealybug flight beginning. |
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Highland: |
Codling Moth flight began 5/8; DD50 since then = 960. Obliquebanded Leafroller flight began 6/5. Degree days (base 43 F) since then = 509. Spotted Tentiform Leafminer 2nd flight began 6/12. DD43 since then = 350. Rose and Potato Leafhopper nymphs over threshold; PLH nymphs numerous on pear. 2nd flights of Oriental Fruit Moth and Lesser Appleworm starting. |
