The UVM Apple Team Dr. Lorraine Berkett, Terence Bradshaw, Sarah Kingsley-Richards |
The UVM Apple Program: Extension and Research for the commercial tree fruit grower in Vermont and beyond... |
|
The UVM Apple Team Dr. Lorraine Berkett, Terence Bradshaw, Sarah Kingsley-Richards |
The UVM Apple Program: Extension and Research for the commercial tree fruit grower in Vermont and beyond... |
L.P.Berkett, IPM Specialist
2006 Degree Day Accumulation for Arthropod Pests
2006 Estimated Degree-Day Accumulation (Base 50F, from Jan. 1) for Selected Sites |
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| Date | UVM HRC
South Burlington Chittenden Co. Elev. 71 M |
Shoreham Addison Co. Elev. 107 M |
South Hero Grand Isle Co. Elev. 54M |
Dummerston Windham Co. Elev. 171 M |
4/01 |
19 | 19 |
17 |
32 |
4/08 |
22 |
22 |
20 |
40 |
4/15 |
49 |
52 |
46 |
77 |
4/22 |
81 |
83 |
77 |
114 |
4/29 |
87 |
91 |
82 |
128 |
4/30 |
92 | 96 |
87 |
133 |
5/06 |
133 |
137 |
127 |
171 |
5/13 |
187 |
186 |
185 |
202 |
5/16 |
204 |
197 |
205 |
205 |
5/20 |
227 |
221 |
225 |
229 |
5/28 |
288 |
281 |
288 |
300 |
6/03 |
403 |
395 |
402 |
410 |
6/10 |
473 |
461 |
475 |
471 |
6/17 |
567 |
552 |
571 |
571 |
6/24 |
711 |
713 |
697 |
722 |
7/01 |
846 |
830 |
849 |
859 |
7/08 |
987 |
965 |
991 |
1000 |
7/15 |
1151 |
1122 |
1158 |
1161 |
7/22 |
1326 |
1294 |
1331 |
1338 |
7/29 |
1484 |
1447 |
1490 |
1497 |
8/05 |
1650 |
1617 |
1656 |
1677 |
8/12 |
1758 |
1723 |
1766 |
1792 |
8/19 |
1881 |
1840 |
1892 |
1913 |
8/26 |
1975 |
1939 |
1984 |
2021 |
9/03 |
2063 |
2025 |
2073 |
2105 |
9/09 |
2143 |
2103 |
2153 |
2183 |
9/16 |
2207 |
2163 |
2216 |
2243 |
9/24 |
2294 |
2247 |
2301 |
2338 |
10/01 |
2336 |
2289 |
2343 |
2379 |
10/08 |
2367 |
2322 |
2374 |
2419 |
10/14 |
2392 |
2349 |
2397 |
2449 |
10/21 |
2405 |
2361 |
2411 |
2465 |
10/31 |
2405 |
2365 |
2411 |
2470 |
Degree Day and other weather information received from Skybit E-Weather Service: http://www.skybit.com/
2006 Guide to Arthropod Pest Events Based on Degree-Day Accumulations1 |
|
| Pest/Phenology Event | Estimated DD Base 50 F (Jan 1) |
| Redbanded Leafroller (RBLR) - 1st catch | 32-124 |
| Rosy Apple Aphid | 56-116 |
Spotted Tentiform Leafminer (STLM) - 1st adult catch |
3 9-113 |
| STLM - 1st egg observed | 58-130 |
| Tight Cluster (McIntosh) | 84-122 |
Tarnished Plant Bug (TPB) - 1st observed |
43- 167 |
| Obliquebanded leafroller (OBLR) - 1st overwintered larvae observed | 64-160 |
European Red Mite (ERM) - egg hatch observed |
100-168 |
| Pink (McIntosh) | 125-157 |
| Oriental Fruit Moth (OFM) - 1st adult catch | 81-205 |
| STLM - 1st generation adult peak flight | 113-209 |
| Full Bloom (McIntosh) | 170-220 |
| San Jose Scale (SJS) - 1st adult catch | 186-324 |
CM - 1st adult catch |
1 90-330 |
STLM -1st sap-feeding mines observed |
165-317 |
| Petal Fall (McIntosh) | 227-283 |
Plum Curculio (PC) - 1st oviposition scars observed |
249-323 |
OBLR - 1st adult catch, 1st summer brood |
4 79-605 |
STLM - 2nd gen. 1st adult catch |
5 60-740 |
| SJS - 1st crawlers observed | 619-757 |
OBLR - peak catch |
5 65-827 |
AMF - 1st capture |
7 50-1034 |
| OFM - 2nd gen. 1st adult catch | 784-1020 |
| RBLR - 2nd gen. peak catch | 770-1070 |
STLM - 2nd gen. peak catch |
861-1217 |
| RBLR - 2nd gen. peak catch | 965-1353 |
OBLR - 1st catch, 2nd summer brood |
1528-1836 |
STLM - 3rd gen. peak catch |
1775-2121 |
1 Source of Estimated DD (Base 50F) for arthropod pest events: 2006 Pest Management Guidelines for Commercial Tree-Fruit Production. A Cornell Cooperative Extension Publication, Table 14: "Degree-day accumulations (from January 1) corresponding to selected fruit phenology and arthropod pest events." http://www.nysaes.cornell.edu/ent/treefruit/ |
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Please send comments and suggestions to: lorraine.berkett@uvm.edu
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