Scaffolds Logo

June 21, 1999 Volume 8 No. 14

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 1/1-6/21):

1212

750

(Geneva 1998 1/1-6/21):

1349

837

(Geneva "Normal" 1/1-6/21):

1093

745

(Hudson 3/17-6/21):

1275

780

(Highland 1/1-6/21):

1442

903

 

Coming Events:

Ranges:

 

American plum borer 1st flight subsides

848-1668

440-1205

American plum borer 2nd flight begins

906-1876

973-1337

Apple maggot 1st catch

1045-1671

629-1078

Codling moth 1st flight subsides

1112-2124

673-1412

Comstock mealybug 1st adult catch

1270-1673

756-1105

Lesser appleworm 2nd flight begins

1152-2302

778-1531

Lesser peachtree borer flight peak

733-2330

392-1526

Obliquebanded leafroller 1st flight peak

869-1548

506-987

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

Redbanded leafroller 2nd flight begins

1096-2029

656-1381

Spotted tentiform leafminer 2nd flight peaks

1295-2005

824-1355

 

TRAP CATCHES (Number/trap/day)

Geneva:

6/7

6/10

6/14

6/17

6/21

Spotted Tentiform Leafminer

4.6

29.8*

211

197

153

Redbanded Leafroller

0.0

0.2

0.0

0.0

0.0

Oriental Fruit Moth

0.4

0.8

0.8

2.0

1.3

Lesser Appleworm

1.0

0.5

0.1

0.8

0.5

Codling Moth

14.1

2.8

1.1

10.3

8.4

American Plum Borer

0.8

1.5

1.8

0.0

0.0

Lesser Peachtree Borer

7.9

5.0

2.1

1.0

0.3

Pandemis Leafroller

3.5

2.2

2.3

0.0

0.0

Obliquebanded Leafroller

3.5

2.7

1.5

0.0

0.4

Peachtree Borer

0.1*

0.2

0.4

0.2

1.6

Highland (Dick Straub, Peter Jentsch):

5/25

6/1

6/7

6/14

6/21

Spotted Tentiform Leafminer

2.9

2.8

15.9*

38.5

10.3

Redbanded Leafroller

2.1

0.0

0.0

0.1

0.9

Oriental Fruit Moth

1.2

1.1

0.6

0.4

0.4

Codling Moth

0.9

3.3

1.1

1.0

0.5

Lesser Appleworm

0.8

2.8

0.9

0.4

0.6

European Red Mite (#/leaf) 11.0

18.0

11.0

6.4

5.2

17.8

Two-Spotted Spider Mite (#/10 lvs)

-

-

0.07

3.0

5.8

San Jose Scale

0.1*

0.0

0.4

0.4

0.0

Fruittree Leafroller

-

0.5*

0.0

0.0

0.0

Obliquebanded Leafroller

-

0.0

3.8

5.1

4.8

Tufted Apple Budmoth

-

-

0.0

4.0*

3.7

Variegated Leafroller

-

-

0.0

2.3*

0.7

Sparganothis Fruitworm

-

-

0.0

2.1*

1.9

Apple Maggot

-

-

-

-

0.0

 

* = 1st catch

       

Hudson (Steve McKay):

5/24

6/1

6/7

6/14

6/21

Spotted Tentiform Leafminer

3.4

1.9

0.2

8.5

7.6

Oriental Fruit Moth

2.0

0.9

1.5

2.1

1.3

San Jose Scale

0.8

0.1

-

0.0

-

American Plum Borer (cherry)

2.9

4.6

1.9

1.5

1.3

Lesser Peachtree Borer (peach)

2.8

0.6

1.4

0.8

6.3

Peachtree Borer

0.3

0.1

0.9

0.9

3.2

Tarnished Plant Bug

0.0

0.0

0.0

0.0

0.2*

 

PEST FOCUS

Geneva:

1st catch of Obliquebanded Leafroller = 6/2. First control spray recommended at approximately 300 DD (base 43°F). DD accumulated since then = 437.

 

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 = 230.

Highland:

1st catch of Obliquebanded Leafroller = 6/2. First control spray recommended at approximately 300 DD (base 43°F). DD accumulated since then = 489.

 

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 = 360.

 

Apple Blotch Leafminer and Apple Leafminer damage observed on apple terminal growth.

 

1st Rose Leafhopper nymphs observed on apple.

 

Potato Leafhopper nymphs increasing.

 

Redbanded Leafroller 2nd flight beginning.

 

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

 

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

Next in this issue: 6/21 Diseases