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June 25th, 2001 Volume 10 No.15 Update on Pest Management and Crop Development

Coming Events & Current Situation
Insects
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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 01 index

 

Current DD accumulations

43°F

50°F

(Geneva 1/1-6/25):

1258

794

(Geneva 1/1-6/25/2000):

1293

754

(Geneva "Normal"):

1224

765

(Highland 1/1-6/25):

1476

964

(Hudson 1/1-6/25):

1349

861

 

Coming Events:

Ranges:

 

Apple maggot 1st catch

1045-2057

629-1297

Codling moth 1st flight peak

547-1326

307-824

Comstock mealybug 1st adult catch

1270-1673

756-1105

Obliquebanded leafroller summer larvae hatch

1076-1513

630-980

Oriental fruit moth 2nd flight begins

1152-1819

772-1215

Pandemis leafroller flight subsides

1420-1665

905-1076

Pear psylla 2nd brood eggs hatch

992-1200

609-763

Redbanded leafroller 2nd flight begins

1096-2029

656-1381

San Jose scale 2nd flight begins

1449-1975

893-1407

Spotted tentiform leafminer 2nd flight peak

1219-2005

701-1355

TRAP CATCHES (Number/trap/day)

Geneva

6/14

6/18

6/21

6/25

Redbanded Leafroller

0.2

0.1

0.0

0.0

Spotted Tentiform Leafminer

39.3*

161

285

120

Oriental Fruit Moth

2.7

1.1

0.5

0.3

Lesser Appleworm

2.0

1.0

0.2

0.1

Codling Moth

2.7

6.5

6.7

6.9

San Jose Scale

0.0

0.0

0.0

0.8

American Plum Borer

0.2

0.4

0.3

0.3

Lesser Peachtree Borer

2.8

4.5

6.5

4.6

Peachtree Borer

0.0

0.0

0.0

0.0

Dogwood Borer

0.0

0.0

0.0

0.0

Pandemis Leafroller

0.1

1.3

0.7

1.0

Obliquebanded Leafroller

5.2

1.8

2.8

0.3

         

Highland (Dick Straub, Peter Jentsch):

6/4

6/11

6/18

6/25

Redbanded Leafroller

0.1

0.1

0.2

2.9

Spotted Tentiform Leafminer

0.5

10.4

88.6

46.1

Oriental Fruit Moth

0.3

0.1

0.3

0.4

Codling Moth

0.6

0.7

5.9

5.4

Lesser Appleworm

4.0

2.9

3.2

1.4

Variegated Leafroller

0.4

0.5

1.3

0.9

Obliquebanded Leafroller

0.2*

1.9

2.8

5.6

Tufted Apple Budmoth

0.0

0.0

0.3

0.9

Apple Maggot

-

0.0

<0.1*

0.0

Dogwood Borer

-

-

-

0.0

         

Hudson (Steve McKay):

6/4

6/11

6/18

6/25

American Plum Borer

0.3

-

0.0

0.0

Oriental Fruit Moth

0.0

-

0.0

0.0

* = 1st catch

 

     

PEST FOCUS

Geneva:

Spotted tentiform leafminer 2nd flight began 6/14. DD (base 43°F) accumulated since then = 324. (Sample at 690-840.)

 

1st Obliquebanded Leafroller caught in 6/8. DD (base 43°F) accumulated since 6/8 in Geneva = 454. (Sample larvae at 600.)

 

Codling moth model is at 461 DD (base 50°F); 2nd brood sprays at 1260-1370.

 

1st San Jose Scale adult caught 5/21; DD (base 50°F) since then = 461. Sprays against emerging crawlers should start at 310.

Highland:

2nd generation Pear Psylla nymphs above threshold.

 

European Red Mite populations increasing/causing bronzing.

 

1st Obliquebanded Leafroller caught 6/4; DD (base 43°F)accumulated since then = 551.

 

Codling Moth model is at 612 DD.

 

 

Insects 6.25