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July 19, 1999 Volume 8 No. 18

Coming Events & Current Situation
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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 99 index

COMING EVENTS

 

43°F

50°F

Current DD accumulations (Geneva 1/1-7/19):

2039

1381

(Geneva 1998 1/1-7/19):

2114

1406

(Geneva "Normal" 1/1-7/19):

1815

1290

(Highland 1/17-7/19):

2375

1640

(Hudson 3/1-7/19):

2114

1423

 

Coming Events:

Ranges:

 

Apple maggot flight peak

2033-2688

1387-1804

Codling moth 2nd flight peak

1587-3103

1061-2212

Comstock mealybug 2nd gen crawlers emerging

2106-2768

1447-1924

Obliquebanded larferoller 2nd flight begins

2124-3040

1412-2076

Oriental fruit moth 2nd flight subsides

1806-2783

1164-1963

San Jose scale 2nd flight peak

1934-2591

1271-1874

STLM 2nd flight subsiding

1773-2514

1148-1818

Redbanded leafroller 2nd flight peak

1479-2443

952-1698

Redbanded leafroller 2nd flight subsides

1927-3045

1291-2160

TRAP CATCHES (Number/trap/day)

Geneva:

7/1

7/6

7/9

7/12

7/19

Spotted Tentiform Leafminer

675

1112

178

87.9

64.4

Redbanded Leafroller

0.3

0.3

2.3

0.5

0.0

Oriental Fruit Moth

4.0

1.9

5.5

16.3

12.8

Lesser Appleworm

1.5

2.3

1.0

8.8

5.6

Codling Moth

1.0

2.7

17.8

15.6

7.6

American Plum Borer

0.8

0.1

1.0

0.9

3.0

Lesser Peachtree Borer

0.7

1.0

2.5

0.1

0.6

Obliquebanded Leafroller

0.5

0.0

0.0

0.3

0.0

Peachtree Borer

1.5

0.8

0.5

3.4

2.5

Dogwood Borer

0.8

0.9

1.0

0.1

0.6

Apple Maggot

0.0

0.05

0.3

0.0

0.3

Highland (Dick Straub, Peter Jentsch):

6/21

6/28

7/6

7/12

7/19

Spotted Tentiform Leafminer

10.3

34.9

58.9

10.1

20.0

Redbanded Leafroller

0.9

2.6

2.7

3.4

0.5

Oriental Fruit Moth

0.4

0.6

0.9

0.3

0.0

Codling Moth

0.5

1.3

0.4

0.7

3.9

Lesser Appleworm

0.6

0.8

0.1

0.1

0.0

European Red Mite (#/leaf)

17.8

10.2

2.0

-

0.1

Two-Spotted Spider Mite (#/leaf)

5.8

7.8

9.6

-

2.4

San Jose Scale

0.0

0.0

0.0

0.0

0.0

Fruittree Leafroller

0.0

<0.1

0.0

0.0

0.0

Obliquebanded Leafroller

4.8

3.4

1.2

0.4

0.0

Tufted Apple Budmoth

3.7

6.7

3.7

2.6

0.0

Variegated Leafroller

0.7

1.1

0.4

0.0

0.3

Sparganothis Fruitworm

1.9

1.1

1.4

0.2

0.5

Apple Maggot

0.0

0.0

0.0

0.0

0.0

Hudson (Steve McKay):

6/21

6/28

7/6

7/13

7/19

Spotted Tentiform Leafminer

7.6

12.8

7.6

2.7

2.6

Oriental Fruit Moth

1.3

0.8

0.6

0.9

0.0

American Plum Borer (cherry)

1.3

1.4

0.7

2.9

2.6

Lesser Peachtree Borer (peach)

6.3

3.0

1.8

0.6

2.5

Peachtree Borer

3.2

3.3

3.3

6.4

5.0

Tarnished Plant Bug

0.2*

1.0

0.3

0.1

0.2

 

* = 1st catch

 

 

 

 

PEST FOCUS

Geneva:

Spotted Tentiform Leafminer 2nd flight began 6/10. DD (base 43°F) accumulated since then = 1057.

 

Degree days (base 50°F) accumulated since 1st Codling Moth trap catch = 1186. Control of the 2nd generation is timed at 1260 DD from 1st trap catch (which we should reach in Geneva in the next 2-3 days).

Highland:

Twospotted Spider Mite and Apple Rust Mite populations building on apple, while European Red Mite numbers remain low.

 

Japanese Beetles causing damage.

 

Pear Psylla numbers building on pear.

Past Coming Events: 5/3 | 5/10 | 5/17 | 5/24 | 6/1 | 6/7 | 6/14 | 6/21 | 6/28 | 7/6 | 7/12

Next in this issue: 7/19 General Information