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July 31, 2000 Volume 9 No. 20 Update on Pest Management and Crop Development

Coming Events & Current Situation
Insects
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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 00 index

Current DD accumulations

43°F

50°F

(Geneva 1/1-7/31):

2173

1385

(Geneva 1999 1/1-7/31):

2416

1674

(Geneva "Normal" 1/1-7/31):

2189

1544

(Highland 1/1-7/31):

2455

1627

 

Coming Events:

Ranges:

American plum borer 2nd flight peaks

1648-2612

1037-1840

Apple maggot 1st oviposition

1566-2200

1001-1575

Codling moth 2nd flight peaks

1471-3103

931-2212

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 peaks

1934-2591

1271-1874

Spotted tentiform leafminer 2nd flight subsides

1773-2514

1148-1818

 

TRAP CATCHES (Number/trap/day)

Geneva

7/20

7/24

7/27

7/31

Redbanded Leafroller

0.5

0.4

0.5

0.1

Spotted Tentiform Leafminer

408

105

76.2

25.8

Oriental Fruit Moth

15.2

8.1

2.3

2.5

Lesser Appleworm

18.3

7.5

4.3

2.8

Codling Moth

2.2

1.9

5.8

6.6

San Jose Scale

0.8

0.0

0.0

2.8*

American Plum Borer

0.2

0.9

0.2

0.0

Lesser Peachtree Borer

1.8

0.6

1.0

1.3

Peachtree Borer

0.7

1.0

1.8

1.1

Obliquebanded Leafroller

0.0

0.0

0.0

0.0

Apple Maggot

0.0

0.0

0.1*

0.1

Dogwood Borer

-

0.0

0.0

0.0

Highland (Dick Straub, Peter Jentsch):

7/10

7/17

7/24

7/31

Redbanded Leafroller

0.6

0.0

0.1

0.0

Spotted Tentiform Leafminer

42.4

17.6

4.8

94.4

Oriental Fruit Moth

0.2

0.0

0.2

<0.1

Codling Moth

0.5

0.7

1.6

1.1

Sparganothis Fruitworm

0.9*

0.6

0.0

0.0

Apple Maggot

0.0

0.0

0.0

0.2

Lesser Peachtree Borer

0.9

1.7

1.9

2.2

Lesser Appleworm

0.1

0.5

0.1

0.0

Dogwood Borer

0.1

0.0

0.0

0.2

American Plum Borer

0.7

0.6

0.1

0.7

Obliquebanded Leafroller

0.6

0.0

0.0

0.0

Tufted Apple Budmoth

0.1

0.0

0.0

0.0

Variegated leafroller

0.2*

0.1

0.0

0.0

* = 1st catch

PEST FOCUS

Geneva:

Spotted Tentiform Leafminer 2nd flight began 6/15. Degree days (base 43°F) since then = 1153. Codling Moth flight began 5/19; DD50 since then = 1059. 1st Apple Maggot caught in Geneva 7/27. 1st Comstock Mealybug crawlers caught 7/27 (Wayne Co. pears). Sprays to control 2nd brood in WNY should be applied this week.

Highland:

Leafhopper (WAHL, RLH, PLH) nymphs present on R. Del. foliage. Apple Maggot adults near threshold on baited sphere traps.

 

>7.31 Insects