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July 30th, 2001 Volume 10 No.30 Update on Pest Management and Crop Development

Coming Events & Current Situation
Insects
Erratum
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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 1/1-7/30):

2169

1461

(Geneva 1/1-7/30/2000):

2146

1364

(Geneva "Normal"):

2159

1507

(Highland 1/1-7/30):

2455

1699

(Hudson 1/1-7/30):

2268

1534

 

Coming Events:

Ranges:

American plum borer 2nd flight peak

1648-2688

1037-1840

Apple maggot oviposition punctures present

1566-2200

1001-1575

Codling moth 2nd flight peak

1471-3103

931-2212

Comstock mealybug 1st flight subsides

1668-2245

1101-1450

Comstock mealybug 2nd gen. crawlers emerging

2106-2768

1447-1924

Obliquebanded leafroller 2nd flight begins

2124-3040

1412-2076

Oriental fruit moth 2nd flight subsides

1806-2783

1164-1963

Redbanded leafroller 2nd flight subsides

1927-3045

1291-2160

San Jose scale 2nd flight peak

1934-2591

1271-1874

Spotted tentiform leafminer 2nd flight subsides

1773-2514

1148-1818

TRAP CATCHES (Number/trap/day)

Geneva

7/19

7/23

7/26

7/30

Redbanded Leafroller

0.3

0.3

2.5

0.6

Spotted Tentiform Leafminer

210

200

165

46

Oriental Fruit Moth

7.8

4.3

4.3

3.1

Lesser Appleworm

12.5

5.1

4.8

10.9

Codling Moth

2.0

1.3

2.8

5.3

San Jose Scale

0.2

11.5*

18.7

15.6

American Plum Borer

-

0.2

1.7*

2.3

Lesser Peachtree Borer

-

3.4

4.0

1.8

Peachtree Borer

-

0.9

1.5

2.3

Dogwood Borer

0.0

0.0

0.0

0.0

Obliquebanded Leafroller

0.0

0.0

0.0

0.1

Apple maggot

0.2

0.7

0.4

0.2

         

Highland (Dick Straub, Peter Jentsch):

7/9

7/16

7/23

7/30

Redbanded Leafroller

1.4

1.7

2.1

1.7

Spotted Tentiform Leafminer

33.8

40.7

48.6

28.9

Oriental Fruit Moth

0.7

0.6

0.4

0.4

Codling Moth

1.4

0.3

0.9

2.4

Lesser Appleworm

0.5

0.5

1.0

0.7

Variegated Leafroller

0.4

0.1

0.1

0.0

Obliquebanded Leafroller

0.6

0.0

0.2

1.0

Tufted Apple Budmoth

0.0

0.0

0.0

0.0

Apple Maggot

0.3

1.1

0.5

0.9

Dogwood Borer

0.0

0.0

0.0

0.0

Sparganothis Fruitworm

0.1*

0.0

0.0

0.0

         

Hudson (Steve McKay):

7/9

7/16

7/23

7/30

American Plum Borer

-

0.0

0.0

0.6

Oriental Fruit Moth

-

0.0

0.0

0.0

* = 1st catch

 

     

PEST FOCUS

Geneva:

American Plum Borer 2nd flight beginning.

 

Codling Moth 2nd flight under way. Model is at 1128 DD (base 50°F); 2nd brood sprays at 1260-1370.

 

Spotted Tentiform Leafminer 2nd flight began 6/14. DD (base 43°F) accumulated since then = 1236. (Resample at 1150 DD or greater; see Cornell Recommends, pg. 64.)

   

Highland:

Apple Maggot rebounding to above threshold levels after first application.

 

Codling Moth model is at 1355 DD, which is within the degree day range for timing of a 2nd spray.

 

Spotted Tentiform Leafminer 2nd flight began 6/11. DD (base 43°F) accumulated since then = 1385. (Resample at 1150 DD or greater; see Cornell Recommends, pg. 64.)

 

 

Insects 7.30