May 8, 2000 Volume 9 No. 8 Update on Pest Management and Crop Development
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| Current DD accumulations |
43°F |
50°F |
|
(Geneva 1/1-5/8): |
411 |
206 |
|
(Geneva 1999 1/1-5/8): |
350 |
170 |
|
(Geneva "Normal" 1/1-5/8): |
339 |
162 |
|
(Highland 1/1-5/8): |
527 |
268 |
|
Coming Events: |
Ranges: |
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|
American plum borer 1st catch |
194-567 |
55-294 |
|
Codling moth 1st catch |
273-805 |
141-491 |
|
European red mite egg hatch complete |
361-484 |
183-298 |
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Green fruitworm flight subsides |
170-544 |
69-280 |
|
Lesser appleworm 1st flight peak |
372-851 |
181-483 |
|
Mirid bugs 1st hatch |
322-432 |
156-231 |
|
Oriental fruit moth 1st flight peak |
259-606 |
96-298 |
|
Redbanded leafroller 1st flight peak |
180-455 |
65-221 |
|
San Jose scale 1st catch |
189-704 |
69-385 |
|
Spotted tentiform leafminer sapfeeders present |
295-628 |
130-325 |
|
White apple leafhopper nymphs present |
236-708 |
123-404 |
|
McIntosh at petal fall |
418-563 |
210-317 |
|
Peach at shuck split |
362-518 |
174-287 |
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Pear at petal fall |
343-544 |
144-275 |
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Plum at shuck split |
343-546 |
144-283 |
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Sweet cherry at fruit |
381-518 |
171-287 |
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Tart cherry at petal fall |
385-563 |
185-289 |
| Phenologies | |
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(Geneva): Apple (McIntosh): |
Full Bloom |
|
Apple (Red Delicious): |
75% Bloom |
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Pear (Bartlett): |
50% Petal Fall |
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Tart Cherry (Montmorency): |
80% Petal Fall |
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Sweet Cherry: |
Petal Fall |
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Peach: |
Petal Fall |
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Plum: |
Fruit Set, shucks on |
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(Highland): Apple (McIntosh): |
Petal Fall |
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Pear (Bartlett): |
Petal Fall |
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Pear (Bosc): |
Fruit Set |
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Peach: |
Fruit Set |
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Plum (Stanley): |
Fruit Set |
|
Geneva |
4/24 |
5/1 |
5/4 |
5/8 |
|
Green Fruitworm |
0.1 |
0.0 |
0.2 |
0.0 |
|
Redbanded Leafroller |
0.1 |
3.6 |
5.0 |
6.1 |
|
Spotted Tentiform Leafminer |
0.0 |
265 |
413 |
392 |
|
Oriental Fruit Moth |
- |
- |
96.5* |
73.8 |
|
Lesser Appleworm |
- |
- |
9.7* |
81.5 |
|
San Jose Scale |
- |
- |
0.0 |
0.3* |
|
American Plum Borer |
- |
- |
- |
0.3* |
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Highland (Dick Straub, Peter Jentsch): |
4/17 |
4/24 |
5/1 |
5/8 |
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Green Fruitworm |
0.0 |
0.1 |
0.0 |
0.0 |
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Redbanded Leafroller |
8.1 |
11.2 |
5.9 |
6.5 |
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Spotted Tentiform Leafminer |
22.9 |
20.1 |
9.9 |
31.1 |
|
Oriental Fruit Moth |
- |
- |
0.0 |
13.5 |
|
Codling Moth |
- |
- |
0.0 |
0.1* |
|
San Jose Scale |
- |
- |
- |
0.0 |
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Pear Psylla (eggs/50 clusters) |
12.0 |
51.0 |
18.0 |
0.0 |
|
Pear Psylla nymphs/50 leaves |
1.0 |
3.0 |
0.0 |
22.0 |
| * = 1st catch
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Geneva: |
Pear Psylla nymphs present |
|
Highland: |
Codling Moth 1st catch. Leaf curl caused by Pear Leaf Midge observed on Bartlett. |
