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May 8, 2000 Volume 9 No. 8 Update on Pest Management and Crop Development

Coming Events & Current Situation
Diseases
Insects
Chemical News
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Scaffolds is published weekly from March to September by Cornell University -- NYS Agricultural Experiment Station (Geneva), and Ithaca -- with the assistance of Cornell Cooperative Extension.

New York field reports welcomed. Send submissions by 3 p.m. Monday to:

Scaffolds Fruit Journal

Editors: A. Agnello, D. Kain

Dept. of Entomology, NYSAES

Geneva, NY 14456-0462

Phone: 315-787-2341 FAX: 315-787-2326

Scaffolds 00 index

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:

 

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

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

Pear at petal fall

343-544

144-275

Plum at shuck split

343-546

144-283

Sweet cherry at fruit

381-518

171-287

Tart cherry at petal fall

385-563

185-289

 

Phenologies

(Geneva): Apple (McIntosh):

Full Bloom

Apple (Red Delicious):

75% Bloom

Pear (Bartlett):

50% Petal Fall

Tart Cherry (Montmorency):

80% Petal Fall

Sweet Cherry:

Petal Fall

Peach:

Petal Fall

Plum:

Fruit Set, shucks on

(Highland): Apple (McIntosh):

Petal Fall

Pear (Bartlett):

Petal Fall

Pear (Bosc):

Fruit Set

Peach:

Fruit Set

Plum (Stanley):

Fruit Set

TRAP CATCHES (Number/trap/day)

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*

         

Highland (Dick Straub, Peter Jentsch):

4/17

4/24

5/1

5/8

Green Fruitworm

0.0

0.1

0.0

0.0

Redbanded Leafroller

8.1

11.2

5.9

6.5

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

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

 

PEST FOCUS

Geneva:

Pear Psylla nymphs present

Highland:

Codling Moth 1st catch. Leaf curl caused by Pear Leaf Midge observed on Bartlett.

 

 

>5.8 Diseases