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May 8, 2006 Volume 15 No. 8 Update on Pest Management and Crop Development

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Upcoming Events

Upcoming Pest Events | Phenologies | Trap Catches | Pest Focus | Insects | Chem News

Current DD accumulations
43°F
50°F

(Geneva 1/1-5/8):

377

168

(Geneva 1/1-5/8/2005):

268

120

(Geneva "Normal"):

344

180

(Geneva 1/1-5/15 Predicted):

482

229

(Highland 3/1-5/8/06):

419

220

 

Coming Events:

Ranges:

 

American plum borer 1st catch

326-526

140-280

Comstock mealybug 1st gen crawlers in pear buds

215-441

80-254

European red mite egg hatch complete

368-470

182-280

Lesser appleworm 1st catch

245-550

108-292

Lesser peachtree borer 1st catch

443-725

220-406

Mirid bugs 1st hatch

332-468

163-239

Mirid bugs 50% hatch

407-523

203-281

Oriental fruit moth 1st flight peak

328-536

159-285

Pear psylla hardshells present

493-643

271-361

San Jose scale 1st catch

377-597

186-324

Spotted tentiform leafminer 1st flight peak

253-407

113-209

Spotted tentiform leafminer sap-feeders present

343-601

165-317

McIntosh at petal fall

442-526

227-283

 


Phenologies

Upcoming Pest Events | Phenologies | Trap Catches | Pest Focus | Insects | Chem News

(Geneva):

5/8

5/15 (Predicted)

Apple (McIntosh):

50% bloom

Bloom to Petal fall

Apple (Red Delicious):

King bloom

Bloom

Apple (Empire):

75% bloom

Bloom to Petal fall

Pear (Bartlett):

50% petal fall

Petal fall

Peach:

Bloom

Petal fall to Fruit set

Plum:

Petal fall

Fruit set

Sweet cherry:

10% Petal fall

Fruit set

Tart cherry:

Bloom

Petal fall

(Highland):

 

Apple (McIntosh):

80% Petal fall

 

Apple (Red Delicious):

75% Petal fall

 

Apple (Empire):

Petal fall

 

Apple (GingerGold):

80% Petal fall

 

Apple (Golden Delicious):

50% Petal fall

 

Apple (Honeycrisp):

Full bloom

 

Pear:

Fruit set

 

Apricot:

Fruit set

 

Plum (Stanley):

Late petal fall

 

Plum (Italian):

Early petal fall

 

Peach (early):

Fruit set

 

Peach (late):

Petal fall

 

 

 

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Trap Catches

Upcoming Pest Events | Phenologies | Trap Catches | Pest Focus | Insects | Chem News

Geneva

4/27

5/1

5/4

5/8

Green Fruitworm

0.3

0.0

0.0

0.0

Redbanded Leafroller

2.9

4.5

3.5

2.6

Spotted Tentiform Leafminer

4.1

7.4

22.8

24.1

Lesser Appleworm

0.0

0.0

0.0

0.0

Oriental Fruit Moth

0.0

0.4*

0.5

0.6

 

 

Highland (Peter Jentsch)

4/24

5/1

Spotted Tentiform Leafminer

9.5

84.1

Oriental Fruit Moth

-

6.5*

Codling Moth

-

0.1*

 
* = 1st catch

 

 

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Pest Focus

Upcoming Pest Events | Phenologies | Trap Catches | Pest Focus | Insects | Chem News

Newfield (Tompkins Co.) and Red Jacket (Wayne Co.): 1st codling moths caught
5/8.
Highland: Obliquebanded Leafroller late stage larvae observed.
Pear Psylla hardshells observed.
Rosy Apple Aphids evident in curled leaves.
Degree days (base 45F) from Oriental Fruit Moth biofix = 132.
Degree days (base 50F) from March 1 predicting San Jose Scale 1st
generation crawlers (at 500 DD) = 220.

 

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Insects

Upcoming Pest Events | Phenologies | Trap Catches | Pest Focus | Insects | Chem News

EYE IN THE SKY

ORCHARD RADAR DIGEST

 

Geneva Predictions:
Roundheaded Appletree Borer
RAB adult emergence begins: May 27; Peak emergence: June 12.
RAB egglaying begins: June 7. Peak egglaying period roughly: June 28 to July 12.

Lesser Appleworm
1st LAW flight, first trap catch expected: May 8; Peak trap catch: May 18.

Mullein Plant Bug
Expected 50% egg hatch date: May 15, which is 5 days before rough estimate of Red Delicious petal fall date.
The most accurate time for limb tapping counts, but possibly after MPB damage has occurred, is when 90% of eggs have hatched.
90% egg hatch date: May 20.

Obliquebanded Leafroller
1st generation OBLR flight, first trap catch expected: June 9.

Oriental Fruit Moth
Optimum 1st generation first treatment date, if needed: May 3.

San Jose Scale
First adult SJS caught on trap: May 14.

Spotted Tentiform Leafminer
1st STLM flight, peak trap catch: May 9.
1st generation sapfeeding mines start showing: May 18.
Optimum sample date is around May 20, when a larger portion of the mines have become detectable.

White Apple Leafhopper
1st generation WALH found on apple foliage: May 11.

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INTERNAL MEMO

NUMBER 1 FOR TAKEOFF
( Harvey Reissig & Dave Combs, Entomology, Geneva )

   Before we get into the thick of the internal worm management decision process this season, here is a synopsis of a small-plot efficacy trial conducted against oriental fruit moth in a NYSAES research orchard last year.

   Seasonal insecticide programs were applied with an airblast sprayer at 50 gpa.  One treatment received the first application at tight cluster (4 May), and the remainder of the treatments received their initial applications at petal fall (1 Jun), and then approximately every 14d depending on weather conditions.  Treatments, including an untreated check, were replicated 3 times in 4-tree blocks and arranged in a RCB design.  Cultivars within the treatment blocks were Empire, Cortland, Jonagold, and Delicious.  Treatments, materials and timings are listed on Table 1.

   First generation damage from the internal Lepidoptera complex (combination of oriental fruit moth, lesser appleworm, and codling moth) was taken from fruit on the tree on 11 Jul.  Final harvest evaluations were made on 27–29 Sept. by inspecting 100 fruit from each replicate.  Data was then subject to an analysis of variance.  Means were separated with Fisher's Protected LSD Test (P≤0.05).  Data was transformed arcsine (Sqrt x) prior to analysis.

   First generation damage from internal Lepidoptera was relatively low.  However, the damage found during harvest increased significantly.  Programs that contained a pyrethroid or an organophosphate controlled the worms fairly well, as well as the reduced-risk materials found in treatments 3 and 4.  However, all treatments were significantly better than the untreated check plot (41.3%).

Table 1.

Trt
Chemical
Timing
Rate/A
% Internal
1st gen. 
Lep Damage
Harvest

1

Guthion 50WP

PF-6C

1.5 lb

0.3a

2.3abcd

   

2

Guthion 50WP

PF-6C

1.5 lb

1.0a

2.7abcd

(1/2” simulated rainfall after every application)

   

3

Assail 25WP

PF-6C

2.5 oz

1.0a

6.0bcde

   

4

Calypso EC

PF-6C

6.0 oz

3.0a

3.7abcd

   

5

Guthion 50WP

PF, 2,4,5,6C 

1.5 lb

1.0a

5.7bcde

Calypso EC

1,3C

4.0 oz

   

6

Guthion 50WP

1,2,3,5,6C

1.5 lb

1.7a

3.3abcd

Clutch 50WDG

PF, 4C

4.0 oz

   

7

Supracide 2E

TC

3.0 pt

0.3a

6.7cde

Lorsban 75WG

Pink

2.0 lb

Imidan 70WSB

PF,1C

4.0 lb

Imidan 70WSB

2,3,4,5,6C

3.0 lb

Latron B-1956

PF-6C

1.0 pt

   

8

Warrior 1CS

PF-6C

5.0 oz

1.0a

1.7abc

Latron B-1956

PF-6C

1.0 pt

   

9

Spintor 2SC

PF,2,4,6C

6.0 oz

0.7a

3.7abcde

Asana XL 0.66EC 

1,3,5C

12.0 oz
   

10 

Asana XL 0.66EC 
PF-6C

12.0 oz

0.3a

2.3ab

11 

Untreated Check

12.3b

41.3h

Damage levels in same column followed by the same number not significantly
different (P<0.05), Fisher's Protected LSD test.

 

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Chem News

Upcoming Pest Events | Phenologies | Trap Catches | Pest Focus | Insects | Chem News

MUSIC TO OUR EARS

CALYPSO 4F REGISTRATION
( Art Agnello, Entomology, Geneva )

   The NYS DEC has announced the registration of Calypso 4F (Bayer CropScience, EPA Reg. No. 264-806) for use on apple, pear and quince in NYS.  The active ingredient, thiacloprid, is another new neo-nicotinoid insecticide.  Calypso possesses both excellent systemic activity and excellent crop safety.  Its mode of action is through interference with the nicotinergic acetylchloline receptor and controls pests by both contact and stomach activities.  Calypso has a low acute toxicity to warm-blooded animals; however, it is highly toxic to marine/estuarine invertebrates.  Calypso possesses activity on apples against aphids (except woolly apple aphid), leafminers, leafhoppers, mirid bugs, codling moth, oriental fruit moth, plum curculio, apple maggot, and European apple sawfly.  It will also suppress scale insects (crawler stage).  On pears, it is active against pear psylla, aphids, codling moth, mealybugs, leafminers, and the pear midge.  It will also suppress scale insects on pears.  Calypso has a 12-hour restricted entry interval (REI) and may not be applied less than 30 days before harvest (PHI = 30 days) on both apples and pears.  Do not apply more than 8 fl oz per acre in a single application and no more than 16 fl oz per acre per year on either apples or pears.  Not registered for use in Nassau or Suffolk Counties.

 


This material is based upon work supported by Smith Lever funds from the Cooperative State Research, Education, and Extension Service, U.S. Department of Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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