Tree Fruit IPM Report August 20, 2024

Peach:

Tarnished Plant Bugs; and Other Catfacing Insects: BMSB and native catfacing insects remain very active. Some recent fruit feeding has been observed.

Scale Insects: Second generation san jose scale and white peach scale crawlers began emergence in late July and will continue through August. Late season treatments include Actara (14 day PHI); Esteem (14 day PHI), Centaur (14 day PHI), Diazinon (postharvest as per label), and Venerate (2 applications 0 day PHI).

Apples and Pears:

Diseases: Summer diseases such as fruit rots (esp. Bitter rot), and sooty blotch and fly speck are the key pests at this point. Bitter rot control has been difficult at best in recent years even where management programs have been rigorous. Summer and late season fungicides for summer diseases include: Merivon, Luna Sensation, Inspire Super, Topsin-M, captan and ziram. Experience has suggested that the addition of phosphorous acid products such as Prophyt or Rampart to captan sprays may improve control. Observations are that these phosphite products improve control of other summer diseases such as sooty blotch and flyspeck, and may help suppress scab infections where present. Bitter rot symptoms have been appearing for several weeks in southern counties. Symptoms continue to increase in sensitive varieties.

Scale Insects: San jose scale crawlers continue emergence. Actara (suppression) has a 35 Day PHI at rates effective for scale on pome fruit. Belay (suppression) has a 7 day PHI. Esteem has a 45 day PHI on Pome fruit. Centaur has a 14 day PHI. Diazinon (suppression) has a 21 day PHI with a 96 hour reentry.

Brown Marmorated Stink Bug: BMSB nymphs have been seen feeding in some apple and pear blocks. Trap captures have increased in some orchards. Effective materials include Brigade, Belay, Leverage, Mustang Max and Venerate at 2 qts.

Codling Moth (CM): The first generation codling moth timings have ended. Trap captures continue at low levels in southern county orchards. Growers with trap captures above 5 moths/trap should still use effective materials within label restrictions.

Phenology Table: Based on annual observations made in Gloucester County.

Pest Event or Growth Stage Approximate Date 2024 Observed Date
 Bud Swell (Redhaven/PF-17)  March 23 +/- 15 Days March 13
1/4″ Green Tip Red Delicious March 31 +/- 13 Days March 18
Pink Peach (Redhaven/PF-17) April 4 +/- 15 Days March 18
Tight Cluster Red Delicious April 9 +/- 13 Days March 30
Full Bloom Peach (Redhaven/PF-17) April 9 +/- 14 Days April 5
Pink Apple (Red Delicious) April 14 +/- 12 Days April 9
Full Bloom Apple (Red Delicious) April 22 +/- 11 Days April 20
Petal Fall (Redhaven) April 22 +/- 10 Days April 15
Petal Fall (Red Delicious) April 27 +/- 13 Days  May 3
Shuck Split (Redhaven) April 30 +/- 11 Days  April 22
Pit Hardening June 15 +/- 9 Days  June 10

 

 

Tree Fruit Trap Captures – Southern Counties

STLM TABM-A CM BMSB OFM-A DWB OFM-P TABM-P LPTB PTB
3/23/2024 70 0
3/30/2024 29 0 0
4/6/2024 421 0 0
4/13/2024 415 7 1
4/20/2024 900 7 0
4/27/2024 312 2 22  1
5/4/2024 137 2 8 27 1 5
5/11/2024 6 2 15 2 1 10 42
5/18/2024 5 6 11 2 6 0 12 41
5/25/2014 33 29 7 4 25 0 44 37
6/1/2024 719 12 12 1 1 0 44 57
6/8/2024 163 7 6 0 27 0 35 52 3
6/15/2024 252 4 0 0 0 31 0 4 54 4
6/22/2024 252 4 0 0 0 31 0 4 54 4
6/29/2024 500 1 1 2 0 31 0 10 35 4
7/6/2024 245 2 5 2 1 34 0 0 27 0
7/13/2024 5 1 2 1 0 34 0 1 34 1
7/20/2024 152 5 6 3 0 19 1 1 26 0
7/27/2024 3 4 4 1 0 14 1 2 22 5
8/03/2024 12 2 3 3 1 4 0 1 21 0
8/10/2024 514 1 2 3 1 25 1 2 35 1
8/17/2024 141 2 2 0 0 15 0 1 13 1

Tree Fruit Trap Captures – Northern Counties

STLM TABM-A CM BMSB OFM-A DWB OFM-P TABM-P LPTB PTB AMBROSIA BEETLE
3/23/2024
3/30/2024
4/6/2024 0 0
4/13/2024 3.25 37.6
4/20/2024 11.75 93
4/27/2024 0 19 50
5/4/2024 1 16 19 124
5/11/2024 3 4 18 112
5/18/2024 4 2 1 2 2 2 83
5/25/2024 7 5 0 16 8 23 55
6/1/2024 16 7 0 28 7 21 37
6/8/2024 17 4 0 23 3 16 2 12
6/15/2024 21 2 0 21 21 27 1 12
6/22/2024 13 1 0 43 13 16 1 3
6/29/2024 15 1 0 49 13 17 1 0
7/06/2024 6 2 0 0 64 9 19 2 0
7/13/2024 2 3 3 0 38 18 18 4 0
7/20/2024 0 3 1 0 29 18 6 2 0
7/27/2024 1 3 0 0 27 16 7 2 0