Scaffolds Logo

June 28, 1999 Volume 8 No. 15

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

COMING EVENTS

43F

50F

Current DD accumulations (Geneva 1/1-6/28):

1420

909

(Geneva 1998 1/1-6/28):

1558

997

(Geneva "Normal" 1/1-6/28):

1261

873

(Hudson 3/17-6/28):

1483

939

(Highland 1/1-6/28):

1658

1070

 

Coming Events:

Ranges:

 

American plum borer 2nd flight begins

906-1876

973-1337

Codling moth 1st flight subsides

1112-2124

673-1412

Comstock mealybug 1st flight peak

1528-1782

824-1185

Obliquebanded leafroller summer larvae hatch

1076-1513

630-980

Oriental fruit moth 2nd flight begins

1152-1819

772-1215

Peachtree borer flight peak

864-2241

506-1494

San Jose scale 2nd flight begins

1449-1975

893-1407

Spotted tentiform leafminer 2nd flight peaks

1295-2005

824-1355

 

TRAP CATCHES (Number/trap/day)

Geneva:

6/14

6/17

6/21

6/24

6/28

Spotted Tentiform Leafminer

211

197

153

741

819

Redbanded Leafroller

0.0

0.0

0.0

0.0

0.8*

Oriental Fruit Moth

0.8

2.0

1.3

0.8

5.1*

Lesser Appleworm

0.1

0.8

0.5

0.8

3.4

Codling Moth

1.1

10.3

8.4

5.3

6.5

American Plum Borer

1.8

0.0

0.0

0.0

0.1

Lesser Peachtree Borer

2.1

1.0

0.3

2.5

1.1

Pandemis Leafroller

2.3

0.0

0.0

0.2

0.0

Obliquebanded Leafroller

1.5

0.0

0.4

0.5

0.6

Peachtree Borer

0.4

0.2

1.6

1.0

0.6

Dogwood Borer

-

-

0.0

0.7*

0.5

Apple Maggot

-

-

-

0.0

0.06*

Highland (Dick Straub, Peter Jentsch):

6/1

6/7

6/14

6/21

6/28

Spotted Tentiform Leafminer

2.8

15.9*

38.5

10.3

34.9

Redbanded Leafroller

0.0

0.0

0.1

0.9

2.6

Oriental Fruit Moth

1.1

0.6

0.4

0.4

0.6

Codling Moth

3.3

1.1

1.0

0.5

1.3

Lesser Appleworm

2.8

0.9

0.4

0.6

0.8

European Red Mite (#/leaf)

11.0

6.4

5.2

17.8

10.2

Two-Spotted Spider Mite (#/10 lvs)

-

0.07

3.0

5.8

7.8

San Jose Scale

0.0

0.4

0.4

0.0

0.0

Fruittree Leafroller

0.5*

0.0

0.0

0.0

<0.1

Obliquebanded Leafroller

0.0

3.8

5.1

4.8

3.4

Tufted Apple Budmoth

-

0.0

4.0*

3.7

6.7

Variegated Leafroller

-

0.0

2.3*

0.7

1.1

Sparganothis Fruitworm

-

0.0

2.1*

1.9

1.1

Apple Maggot

-

-

-

0.0

0.0

Hudson (Steve McKay):

6/1

6/7

6/14

6/21

6/28

Spotted Tentiform Leafminer

1.9

0.2

8.5

7.6

12.8

Oriental Fruit Moth

0.9

1.5

2.1

1.3

0.8

American Plum Borer (cherry)

4.6

1.9

1.5

1.3

1.4

Lesser Peachtree Borer (peach)

0.6

1.4

0.8

6.3

3.0

Peachtree Borer

0.1

0.9

0.9

3.2

3.3

Tarnished Plant Bug

0.0

0.0

0.0

0.2*

1.0

 

* = 1st catch

       

PEST FOCUS

Geneva:

2nd brood flight of Spotted Tentiform Leafminer started = 6/10. Sampling for control decision recommended at 500-700 DD (base 43°F). Current DD accumulation = 438.

 

Obliquebanded Leafroller DD (base 43°F) accumulated since 1st catch = 645.

 

Comstock Mealybug adult 1st catch 6/25 in Wayne Co.

 

Apple Maggot 1st adult catch = 6/28.

 

Redbanded Leafroller, Lesser Appleworm and Oriental Fruit Moth 2nd flights began 6/28. Degree days (base 50°F) since 1st Codling Moth catch = 714.

 

Control of 2nd generation is timed at 1260 DD. DD accumulations have been just a little above "normal" so far this season, but are now beginning to look more like the "sizzler" years, 1998 & 1991.

Highland:

2nd brood flight of Spotted Tentiform Leafminer started = 6/7. Sampling for control decision recommended at 500-700 DD (base 43°F). Current DD accumulation = 576.

 

Degree days (base 50°F) since 1st Codling Moth catch = 719. Control of 2nd generation is timed at 1260 DD.

 

Obliquebanded Leafroller DD (base 43°F) accumulated since 1st catch = 645.

 

High numbers of Tarnished Plant Bug observed in traps.

 

Drought stress symptoms appearing in apples.

 

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

Next in this issue: 6/28 Diseases