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July 12, 1999 Volume 8 No. 17

Coming Events & Current Situation
Scaffolds Logo

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 99 index

COMING EVENTS

Current DD accumulations

43°F

50°F

(Geneva 1/1-7/12):

1814

1205

(Geneva 1998 1/1-7/12):

1906

1247

(Geneva "Normal" 1/1-7/12):

1628

1145

(Hudson 3/17-7/12):

2140

1454

 

Ranges:

Apple maggot 1st oviposition punctures

1566-2086

1001-1575

San Jose scale 2nd flight begins

1449-1975

893-1407

STLM 2nd generation tissue feeders present

1504-2086

952-1201

STLM 2nd flight subsiding

1773-2514

1148-1818

Redbanded leafroller 2nd flight peak

1479-2443

952-1698

 

TRAP CATCHES (Number/trap/day)

Geneva:

6/28

7/1

7/6

7/9

7/12

Spotted Tentiform Leafminer

819

675

1112

178

87.9

Redbanded Leafroller

0.8*

0.3

0.3

2.3

0.5

Oriental Fruit Moth

5.1*

4.0

1.9

5.5

16.3

Lesser Appleworm

3.4

1.5

2.3

1.0

8.8

Codling Moth

6.5

1.0

2.7

17.8

15.6

American Plum Borer

0.1

0.8

0.1

1.0

0.9

Lesser Peachtree Borer

1.1

0.7

1.0

2.5

0.1

Pandemis Leafroller

0.0

0.0

0.0

0.0

0.0

Obliquebanded Leafroller

0.6

0.5

0.0

0.0

0.3

Peachtree Borer

0.6

1.5

0.8

0.5

3.4

Dogwood Borer

0.5

0.8

0.9

1.0

0.1

Apple Maggot

0.06*

0.0

0.05

0.3

0.0

           

Highland (Dick Straub, Peter Jentsch):

6/14

6/21

6/28

7/6

7/12

Spotted Tentiform Leafminer

38.5

10.3

34.9

58.9

10.1

Redbanded Leafroller

0.1

0.9

2.6

2.7

3.4

Oriental Fruit Moth

0.4

0.4

0.6

0.9

0.3

Codling Moth

1.0

0.5

1.3

0.4

0.7

Lesser Appleworm

0.4

0.6

0.8

0.1

0.1

European Red Mite (#/leaf)

5.2

17.8

10.2

2.0

-

Two-Spotted Spider Mite (#/10 lvs)

3.0

5.8

7.8

9.6

-

San Jose Scale

0.4

0.0

0.0

0.0

0.0

Fruittree Leafroller

0.0

0.0

<0.1

0.0

0.0

Obliquebanded Leafroller

5.1

4.8

3.4

1.2

0.4

Tufted Apple Budmoth

4.0*

3.7

6.7

3.7

2.6

Variegated Leafroller

2.3*

0.7

1.1

0.4

0.0

Sparganothis Fruitworm

2.1*

1.9

1.1

1.4

0.2

Apple Maggot

-

0.0

0.0

0.0

0.0

Hudson (Steve McKay):

6/14

6/21

6/28

7/6

Spotted Tentiform Leafminer

8.5

7.6

12.8

7.6

Oriental Fruit Moth

2.1

1.3

0.8

0.6

American Plum Borer (cherry)

1.5

1.3

1.4

0.7

Lesser Peachtree Borer (peach)

0.8

6.3

3.0

1.8

Peachtree Borer

0.9

3.2

3.3

3.3

Tarnished Plant Bug

0.0

0.2*

1.0

0.3

 

* = 1st catch

     

PEST FOCUS

Geneva:

Codling Moth, Lesser Appleworm, and American Plum Borer 2nd flights beginning.

 

Spotted Tentiform Leafminer 2nd flight began 6/10. DD (base 43°F) accumulated since then = 832.

 

Degree days (base 50°F) accumulated since 1st Codling Moth trap catch = 1010. Control of the 2nd generation is timed at 1260 DD from 1st trap catch.

 

Past Coming Events: 5/3 | 5/10 | 5/17 | 5/24 | 6/1 | 6/7 | 6/14 | 6/21 | 6/28 | 7/6

Next in this issue: 7/12 Diseases