What's HOT in Peach Production and Research

(Updated 25 April 2017)

Section 18 Approved for bifenthrin against BMSB in 2017

On April 21, EPA approved bifenthrin (Bridgade WSB, Bifenture EC, Bifenture 10DF) for use against brown marmorated stink bug in apple, peach and nectarine.  Pears are already included in the full Section 3 label. Click here for more details.

2017 Orchard Meetings

Nelson-Albemarle:  Meeting will begin a 11:00 am.  Please come to discuss fruit production issues and concerns with other fruit growers and Extension fruit specialists.  Please being a bag lunch; cold drinks will be provided by the host orchard. April 5: Crown Orchard. We will be meeting at the Johnson Purvis orchard block which is located just south of the village of Covesville.  DIRECTIONS:  From Charlottesville: Travel on Route 29 south for 15 miles (about 20 minutes). Approximately one mile south of Covesville turn left on Route 632 (Faber Road). From Lynchburg: Travel on Route 29 north. Approximately 1 mile north of the Nelson County line, at the top of the hill, turn right on Route 632 (Faber Road).  The orchard entrance is less than a quarter mile down the road.  Turn left and cross the wooded railway trestle. The orchard is on the other side.  April 11: Silver Creek Orchard.  April 25: Saunders Brothers Orchard.  May 9: Morris Orchards.  May 23: 7K Farms.

2017 Revisions to Tree Fruit Spray Guide:
Virginia, West Virginia and Maryland 2017 Spray Bulletin for Commercial Tree Fruit Growers (Virginia and West Virginia Coop. Ext. Pub. 456-419) (Complete PDF version - hard copy of 2017 guide - $17.00 including tax.  Shipping will be charged; contact https://apps.cals.vt.edu/flex/SprayBulletinVegGuideOrdering/SprayBulletinVegGuideOrdering.html) Tables on apple pest efficacy and toxicity to orchard predators is also updated in the recommendations for 2017.  An abridged electronic version of the Virginia-West Virginia-Maryland Spray Bulletin for Commercial Tree Fruit Growers is available in the Virginia Fruit Web Page.

2017 Tree Fruit Schools
The Patrick-Carroll school will be held on Monday, Feb 13.  The Botetourt-Roanoke school will be held on the morning of Wednesday, Feb 14, starting at 8:00 AM. A recently added fruit school, the Southside school in the lineup again this year, and will be held on the morning of Feb 15.  The Nelson-Albemarle (Central Virginia) school (see Registration) will be held in the late afternoon-evening of that Wednesday, Feb 15, starting at 3:00 PM.  The Madison-Rappahannock school will beheld on Thursday, Feb 16, and the Winchester school will be held on Friday, Feb 17.  Additional details on the agendas will be posted when available.  Click here for Proof of 2017 Spray Bulletin for Commercial Orchards.

Proposed pollinator protection plan

Honey bees have been at greater risk in recent years because of Colony Collapse Disorder, which results from a combination of stress factors.  In order to address this, the Virginia Department of Agriculture and Consumer Services has created a draft plan to protect pollinators from pesticides has been developed.  In preparation for a June meeting in Richmond, grower, extension agent and beekeeper feedback is requested.  The draft plan is linked here.  A web application is mentioned in the text; this DriftWatch site is available here.  Please send your thoughts on this proposed program to Doug Pfeiffer (dgpfeiff at vt.edu) by June 12.  Any comments are appreciated!

2016 Orchard Meetings

Nelson-Albemarle:  Meetings begin at 11:00 AM.  April 5: Crown Orchard. We will be meeting at the Johnson Purvis orchard block which is located just south of the village of Covesville.  DIRECTIONS:  From Charlottesville: Travel on Route 29 south for 15 miles (about 20 minutes). Approximately one mile south of Covesville turn left on Route 632 (Faber Road). From Lynchburg: Travel on Route 29 north. Approximately 1 mile north of the Nelson County line, at the top of the hill, turn right on Route 632 (Faber Road).  The orchard entrance is less than a quarter mile down the road.  Turn left and cross the wooded railway trestle. The orchard is on the other side.  April 19: Silver Creek Orchard.  May 3: Saunders Brothers Orchard.  May 17: Dickie Brothers Orchard.  May 31: Fitzgerald Orchard.

Madison-Rappahannock:  Meetings begin at 11:00 unless otherwise noted.  March 11: Grafting workshop, Madison Extension Office, 10:00-noon.  April 20: Williams Orchard, Tommy and Eddie Williams, Flint Hill Rt. 211 east to Ben Venue.  At the crossroads, turn north on to Rt. 729 and go approximately 2½ miles.  Orchard is on the left.  May 25: Jenkins Orchard, Woodville, From Rt. 231, turn right on to Rt. 621, go about 2 miles.  The orchard is on the left by the packing shedJune 15: Stribling and Hartland Orchards, Robert Stribling and Bill Green, Markham.  From Flint Hill: Rt. 522 N, turn right on Rt. 635, turn N/left on Rt. 688, both orchards are located near the intersection of Rt. 688 and Rt. 55 in Markham.  July 20: Graves Mountain Farm, Jimmy Graves, Syria.  Rt. 231 to Rt. 670, meet at the picnic shelter on left just past Syria.


 
2016 Revisions to Tree Fruit Spray Guide:

The PDF version is available at from VCE Publications site (http://pubs.ext.vt.edu/456/456-419/456-419.html) and the paper version from the Extension Distribution Center (http://pubs.ext.vt.edu/spraybulletinvegguidestore.html) ($15.00 plus shipping). Tables on apple pest efficacy and toxicity to orchard predators will also be updated in the recommendations for 2015.  An abridged electronic version of the Virginia-West Virginia-Maryland Spray Bulletin for Commercial Tree Fruit Growers is available in the Virginia Fruit Web Page.

2016 Revisions to Home Fruit Spray Guide:

The revised Pest Management Guide for Home Apples is now available.  (The Pest Management Guide is available on-line for free. Hard copies are also available for $14.00 plus shipping).  Order from https://pubs.ext.vt.edu/pmgstore.html. Recommendations for home apple trees are also available in the web page

Brown marmorated stink bug and Virginia fruit:  See StopBMSB.org web site A new addition to the stink bug complex is brown marmorated stink bug, Halyomorpha halys (Stål).  Brown marmorated stink bug (BMSB) has recently been introduced from Asia into the northeastern U.S.  It was first detected in 1998 in Allentown, Pennsylvania (see NAPIS map; this map underrepresents the situation in Virginia).  It was later found in New Jersey, Maryland and Delaware, and in October 2004 it was found in Montgomery County, Virginia, and in Tennessee in 2008.  Injury in tree fruits can be severe, exceeding 25% (individual blocks have been estimated to have much higher levels of fruit injury).  Externally, fruit may have multiple reddish dents at feeding sites, resembling hail strikes.  Upon cutting into fruit, corky areas are seen in the flesh of the fruit.  In vineyards, a unique problem is posed.  Stink bugs may be harvested along with clusters and be transported to the winery in lugs or bins, where the wine can be imparted with a "stink bug taint".  Research is underway to test short-residual insecticides to knock down BMSB from clusters at harvest.  For further information and images, see the Brown marmorated stink bug page.  A working group on organic management of BMSB has been established, with their own web site.  There is opportunity to participate in grower forums.

New!  The College of Agriculture and Life Science at Virginia Tech has established a new on-line Master's in Agriculture and Life Sciences.   This curriculum has been approved by the State Council of Higher Education and is now accepting applications for Fall semester 2007.  In this program, you can earn a master's degree in agriculture while working in your current job - emphasis is on education for place-bound learners, and all courses are taken on-line.  In addition to a core area, there are courses offered in five areas of concentration: (1) Biosecurity, Bioregulations and Public Health, (2) Education, (3) Environmental Science, (4) Food Safety, and (5) Plant Science and Pest Management.  In addition to course work, the student completes a project decided upon in consultation with your major advisor.  Lists of courses within each concentration may be found in the web site linked above.  This program was recently the subject of an interview by Jeff Ishee with Virginia Public Television's Virginia Farming.  For more information, contact Doug Pfeiffer (dgpfeiff at vt.edu) or Sharon Proffitt (sproffit at vt.edu) (see 2008-2009 Extended Campus tuition rates).

Plum pox virus found in Michigan and New York:
Aug. 14 and 25, 2006 - The USDA has found plum pox virus in samples collected from a routine survey at the Michigan State University Southwest Michigan Research and Extension Center. See Fruit Grower's News for more information.  On August 25, it was announced that PPV was found in New York.  Fruit Growers' News: "Discoveries of plum pox virus outside of Pennsylvania now total three, one confirmed in Michigan on Aug. 11 and two confirmed in New York’s Niagara County. The New York findings were on July 17 on two plum trees five miles from the Canadian quarantine area and one Aug. 21 on a peach tree 11 miles further east."

Mating disruption and Organic certification:
The National Organic Standards Board has recently amended organic guidelines so that many pheromone dispensers for mating disruption will now be allowed in organically certified orchards.  Most hand-placed dispensers are now considered to emit negligible amounts of inerts, and will be allowed.  Sprayables and puffers will not be allowed.  More information will be posted when available.

Updates on FQPA and Pesticide Registrations:

Azinphosmethyl: New Guthion label: EPA has announced the new label for Guthion, effective August 21, 2003.  Grapes and stawberries are now deleted from the label.  Guthion remains available for caneberries, nectarines and peaches until 2005.  Guthion remains apples and crabapples, blueberries, cherries, and pears.  Guthion Solupak will be the only formulation available.   Guthion timeline update:  Group 3 uses on track for renewal (almonds, apples, blueberries, Brussels sprouts, cherries, nursery stock, parsley, pears, pistachios, and walnuts).  As I said in the last update, the Group 2 uses have been requested to be terminated by Bayer (cotton, cranberries, nectarines, peaches, potatoes, southern pine seed orchards, and caneberries).  The following is a more detailed timeline for these crops, as provided by Bayer: “COMMERCIAL PIPELINE PROVISIONS: GUTHION manufactured after March 31, 2005 cannot have Group 2 uses on the label unless EPA-approved prior to that date. GUTHION with Group 2 uses on the label can be sold within commercial channels through August 31, 2005. GUTHION must not to be used on the Group 2 crops after December 31, 2005, unless the use has been extended. On Aug 17, 2005, EPA announced receipt of the request from the manufacturer to cancel azinphosmethyl uses on caneberries and peaches.  Public comments must be received by Sept 16, 2005. The distribution or sale of these products is permitted until March 31, 2006. The use of existing stocks of these products in the United States is permitted until September 30, 2006.   On 7 Dec 2005, EPA announced the availability of its azinphosmethyl ecological risk assessment and grower impact assessment (posted at http://www.regulations.gov; search on the docket ID number EPA-HQ-OPP-2005-0061).  Comments must be received on or before 6 Feb 2006.  Further information will be posted here when available.
carbaryl - EPA announces Interim Reregistration Eligibility Decision (IRED - this pdf exceeds 300p. See also 6-page fact sheet) for carbaryl on 10/27/04.  On 30 March 2005, National Resources Defense Council (NRDC) requested that EPA revoke all tolerances for carbaryl.  NRDC's letter to EPA is posted (html).  EPA's assessment of human health and environmental risks of carbaryl, and finding on whether the tolerances for carbaryl comply with the safety standard in FFDCA section 408, as amended by the FQPA, are contained in the IRED document for carbaryl, which is available on EPA's website at http://www.epa.gov/edocket, under docket number OPP-2003-0376. (More information on risk assessment is available).  The e-docket for this issue has several items listed.  On 13 Oct 06, EPA announced a petition from Washington Toxics has been received to cancel all tolerances of carbaryl.   In the Regulations.gov page, search on ID no. EPA-HQ-OPP-2006-0801.  Following that link, one can also find a link to the carbaryl IRED (Interim Reregistration Eligibility Decision).  Public comments are requested and must be received by 13 Nov 06.

Diazinon uses cancelled by Syngenta, but...: IRED of July 31, 2002, proposed that on most crops where use would be continued, applications would be limited to one per growing season. A single dormant use is also proposed for cherry and pear, limited to every other year (unless pest pressure required annual application).  Use on apple would be limited to woolly apple aphid, once a year.  Grape uses would be cancelled.  REI in apple, apricot, cherry, nectarine, peach, pear, plums would be 4 days; caneberries, blueberries and strawberries would be 5 days.  Diazinion is highly toxic to birds.  Granular formulations, the source of most bird mortality, would be cancelled. These proposed changes have not been adopted into label changes; current labeling will remain in effect at least until July 31, 2004. May 30, 2003 Syngenta requests cancellations of all uses, effective June 30, 2003. Syngenta may not distribute after August 31.  Retail supplies may be sold until supplies exhausted.  However, Makhteshim-Agan intends to maintain all allowable uses.

endosulfan - On 29 Apr 09, EPA announced that it had received a petition to cancel all used of endosulfan. Comments must be received on or before 29 Jun 09.  Submit your comments throught the Federal eRulemaking Portal, identified by docket identification (ID) number EPA-HQ-OPP-2008-0615.

spinetoram - A new active ingredient in the same class as spinosad (SpinTor, Entrust) has been registered for fruit crops. Delegate WG is registered on pome and stone fruits, bushberries, caneberries and grape.  Radiant SC is the formulation registered on strawberries.

See Fruit Growers News for more information.

More will follow.

For some industry discussion on FQPA changes and issues, see Issues section of the CropLife America web site.

Mating disruption tools:

For several years, researchers at Virginia Tech have been involved in developing mating disruption as a control tactic for codling moth and the leafroller complex, including tufted apple bud moth, variegated leafroller, and redbanded leafrollers. Control of codling moth has been very good, even in processing blocks (where CM control is more critical). Several commercial sources of codling moth mating disruption are now available. Several sources of products for oriental fruit moth are also available, including a sprayable product. Mating disruption for leafrollers is available as a sprayable formulation, but check the label carefully. At present it is only available for leafrollers using (Z)-11-14:Ac as the primary component. Such species include obliquebanded lefroller and redbanded leafroller. The main species in the mid-Atlantic region, tufted apple bud moth and variegated leafroller will not be affected. Mating disruption is now registered for borers in peach as well.

Plum Pox: A New Disease of Stone Fruits for Mid-Atlantic Region:

A multi-disciplinary task force was established at the recent Cumberland-Shenandoah Fruit Workers Conference, to facilitate educational efforts in response to the recent detection of plum pox virus in Pennsylvania. This disease was recently announced that plum pox has been confirmed in Pennsylvania. I have received further information from USDA-APHIS-PPQ in Richmond on October 27. The following update contains information from these sources, as well information presented in the West Virginia and Virtual Orchard web sites.

The presence of the disease was confirmed on October 13, in a block of Encore peaches in Adams County. A survey was carried out in orchards within one mile of the infected block; 10 blocks with plum pox were found, belonging to three different growers, including cases in peach, nectarine and plum. The search was expanded on October 21-22 to an additional one-mile radius. No symptoms were detected, though leaf analyses are pending. A map of the quarantined area is available on the web. This is the first case of plum pox in North America, although it was introduced into Chile in 1995, and caused concern for North American specialists at that time.

To date in 2000, the disease has also been found in Cumberland County PA, and in Canada. As of November 2000, the disease had not been found in Michigan. More information regarding this important development can be found in the plum pox page in the Virginia Fruit Web Page.


Other Sites
  • West Virginia Orchard Newsletter
  • Fruit Times newsletter from Penn State

  • Archived Orchard Fruit Schools
    2016 Tree Fruit Schools
    The Patrick-Carroll school will be held on Monday, Feb 8.  The Botetourt-Roanoke school will be held on the morning of Wednesday, Feb 9, starting at 8:00 AM. A new fruit school, the Southside school (brochure and agenda) in the lineup this year, and will be held this year, morning of Feb 10.  The Nelson-Albemarle (Central Virginia) school will be held in the late afternoon-evening of that Wednesday, Feb 10, starting at 3:00 PM.  The Madison-Rappahannock school will beheld on Thursday, Feb 11, and the Winchester school will be held on Friday, Feb 12.  Additional details on the agendas will be posted when available.

    The agendas of the 2015 fruit schools are linked here:  The Patrick-Carroll school (Mt. Airy) was held on Tuesday, Feb 10.  The Botetourt-Roanoke school was held on the morning of Wednesday, Feb 11, starting at 8:00 AM.  The Nelson-Albemarle (Central Virginia) school was held in the late afternoon-evening of that Wednesday, starting at 4:00 PM.  The Madison-Rappahannock school was held on Thursday, Feb 12, and the Winchester school was held on Friday, Feb 13..


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