April 4th, 2000 Volume 9 No. 3 Update on Pest Management and Crop Development
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| Current DD accumulations |
43°F |
50°F |
|
(Geneva 1/1-4/3): |
163 |
64 |
|
(Geneva 1999 1/1-4/3): |
78 |
26 |
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(Geneva "Normal" 1/1-4/3): |
79 |
34 |
|
(Highland 1/1-4/3): |
197 |
77 |
|
Coming Events: |
Ranges: |
|
|
Green fruitworm 1st flight peak |
64-255 |
19-108 |
|
Redbanded leafroller 1st catch |
32-480 |
5-251 |
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Spotted tentiform leafminer 1st catch |
73-433 |
17-251 |
|
Pear thrips in pear buds |
137-221 |
54-101 |
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Pear psylla 1st egg hatch |
111-402 |
55-208 |
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Rosy apple aphid nymphs present |
91-291 |
45-148 |
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McIntosh at half-inch green |
112-221 |
54-102 |
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Peach at half-inch green |
154-230 |
61-107 |
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Pear at bud burst |
68-245 |
33-117 |
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Plum at bud burst |
68-234 |
33-108 |
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Sweet cherry at bud burst |
135-235 |
53-101 |
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Tart cherry at bud burst |
135-279 |
53-138 |
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Phenologies (Geneva): |
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Apple (McIntosh): |
Green Tip |
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Apple (Red Delicious): |
Early Green Tip |
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Pear (Bartlett): |
Swollen Bud |
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Tart Cherry (Montmorency): |
Swollen Bud |
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Sweet Cherry: |
Swollen Bud |
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Peach: |
Green Tip |
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Plum: |
Swollen Bud |
| (Highland): | |
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Apple (McIntosh): |
Half-Inch Green |
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Pear (Bartlett): |
Swollen Bud |
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Peach: |
Green Tip |
| Geneva |
3/30 |
4/3 |
|
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Green Fruitworm |
- |
0.1* |
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Redbanded Leafroller |
- |
0.0 |
|
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Spotted Tentiform Leafminer |
- |
0.0 |
| Highland (Dick Straub, Peter Jentsch): |
3/20 |
3/27 |
4/3 |
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Green Fruitworm |
0.0 |
1.4* |
0.4 |
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Redbanded Leafroller |
0.0 |
0.5* |
3.8 |
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Spotted Tentiform Leafminer |
0.0 |
0.0 |
0.1* |
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Pear Psylla (eggs/100 buds) |
3.0* 42.0 |
13.0 |
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* = 1st catch |
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Geneva: |
1st catch of Green Fruitworm |
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Highland: |
1st catch of Spotted Tentiform Leafminer. |
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Aphids observed on apple buds. |