Ohio Grape-Wine Electronic Newsletter Editor: David Scurlock, Viticulture Outreach Specialist Department of Horticulture and Crop Science Ohio Agricultural Research and Development Center 1680 Madison Avenue Wooster, OH 44691-4096 www.oardc.ohio-state.edu/grapeweb/ Content: 30 April 2015 (11) Congratulations Greg Johns! New herbicide for weed control in vineyards Sensitive Crop Registry Grape bench grafting Buckeye Appellation-new grape website OARDC Vineyard Update Winter injury assessment at Piketon South Centers SWD Webinar Know Your Grape and Wine Experts
Transcript
Ohio Grape-Wine Electronic Newsletter
Editor: David Scurlock, Viticulture Outreach Specialist Department of Horticulture and Crop Science
Ohio Agricultural Research and Development Center 1680 Madison Avenue
Wooster, OH 44691-4096
www.oardc.ohio-state.edu/grapeweb/
Content: 30 April 2015 (11)
Congratulations Greg Johns! New herbicide for weed control in vineyards Sensitive Crop Registry Grape bench grafting Buckeye Appellation-new grape website OARDC Vineyard Update Winter injury assessment at Piketon South Centers SWD Webinar Know Your Grape and Wine Experts
Greg Johns, The Ohio State Ashtabula Agriculture Research Station Manager, Retires after 30.5 years of Service by Dave Scurlock, OSU/OARDC Viticulture Outreach Specialist
A retirement celebration was held yesterday April 29 2015, at Hundley Cellars in Geneva, Ohio for the Ashtabula Agricultural Research Station manager Greg Johns. The event was hosted by owners Tracey Hundley Pringle, parents Larry and Gerri and Tracey’s Brother Greg, who made and served up the World’s Best Hor d’oeuvres!
Greg started his long career with Ohio State University and ended it with The Ohio State University. Greg is one of biggest Buckeye Fans in Buckeye Nation attending OSU football games religiously with his son Alex. Greg was the first and only person to manage the AARS Branch which was started in 1985. Greg has worked with many OSU researchers starting with Dr. Garth Cahoon, who I refer to as the Grape Voice of Ohio. Dr. Dave Ferree, a world renowned pomologist ran the viticulture program from 1993-2004. Dr. Dave Ferree carried on the rootstock research that Dr. Garth Cahoon had started. This research tested 8 different rootstocks on 2 varieties of grapes, Riesling and Cabernet franc, to test which rootstock produced the best vine and grape possible. The reference to this publication of Dr. Dave Ferree can be found at:
Ferree, D.C., G.A. Cahoon, M.A. Ellis, D.M. Scurlock and G.R. Johns. 1996. Influence of eight rootstocks on the performance of ‘White Riesling’ and ‘Cabernet Franc’ over five years. Fruit Var. J.50(2):124-130.
This work and the findings are still the recommendations to this day. Dr. Roger Williams along with several of his graduate students performed various insect research experiments. Dr. Mike Ellis’s research experiments at AARS and OARDC help bring the grape industry into the 21st
century with his preventative spray programs that helped to improve the quality of grapes throughout Ohio. Dr. Joseph Scheerens had a research plot on brambles at the AARS for a period of time.
There are too many research experiments that have been performed at the AARS and Greg has been intimately involved with all of them. Greg has also held workshops at the AARS for school children and worked closely to hire disabled children who have helped at harvest time. This really means a lot to these individuals to instill respect and accomplishment of a job well done.
All of us who have worked with Greg over his career owe an immense debt of gratitude for all he has done to advance the growth of the grape and wine industry in the State of Ohio. We wish him well as he embarks on his next career. Greg established his own vineyard and has vowed to be an intimate part of the grape industry in many different capacities. I have included a pictorial of Greg’s retirement reception at Hundley Cellars for those of you who could not attend. Thank you Greg from Buckeye Nation.
Ken Scaife, OSU/OARDC Outlying Branch Manager, delivered a presentation and plague to Greg for his service to the grape and wine industry which can be seen on the link below.
http://www.youtube.com/watch?v=CujKZD8AkDA
The following pictures were taken by Dave Scurlock at Greg John’s Retirement Reception hosted by Hundley Cellars. Enjoy!
Greg, We Wish you ALL THE BEST!
New Herbicides for Weed Control in Vineyards Mohsen Mohseni-Moghadam1 and Douglas Doohan2
1Postdoctoral Researcher 2Professor and State Specialist
Department of Horticulture and Crop Science, 1680 Madison Avenue, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, OH 44691
Weed control is part of an overall vineyard management system and is essential for the
establishment of newly planted vines. Weeds have negative effects on the crop by competing for light, water, and nutrients. They can reduce the quality and/or yield as well as cause problem during crop harvest and serve as hosts to insects and diseases. A successful weed management program can improve the growth and yield of established vines. There are many tools, including chemical and non-chemical, available to the growers to achieve control in their vineyards.
There are many important factors to consider in chemical weed control. One of the most
important is site preparation, which should start 2 years before planting. Knowing the crop, weed, and herbicide history before planting can be very useful for making the right decisions for site preparation. Fields that have been in row-crops may or may not require extensive measures to kill perennial weed rhizomes and rootstocks before planting grapes, depending on the degree of weed control maintained up to the time of planting grapes. In contrast, abandoned land, pastures, hayfields, and poorly managed row crops will require a particular prolonged focus on weed control before planting a single grape vine. Fields such as these must be tilled to break dormancy in perennial weed rhizomes and/or rootstocks. Tillage will stimulate their growth and create the conditions favorable for actually killing them. Once weed growth has occurred and perennials have reached the appropriate growth stages cultivation, smother crops, and herbicides such as glyphosate can be used to kill the underground propagules. Before planting vines consider establishing an inter-row cover crop such as tall fescue. A weed-suppressive, rutting- resistant cover crop may take up to 18 months to fully establish.
Once grape vines are planted, the right herbicide must be chosen and applied at the
appropriate time using the correct rate. PRE and POST herbicides for broad spectrum weed control after transplanting can also be used to prevent re-infestation. Keep in mind that for a successful weed management and control program you must incorporate other herbicides in Year 2 and beyond. It is also critical to implement a comprehensive cleanup plan that prevents ‘misses’ (the inevitable weeds that are not controlled by an herbicide application) to go to seed. Here we summarize some recent registrations that could be part of a complete herbicide program for your vineyard. None of the herbicides mentioned below will control all weeds, and must be part of a broader program.
Zeus XC:
Zeus XC is a selective soil-applied herbicide for the control of susceptible broadleaf (i.e. redroot pigweed, common purslane, common lambsquarters), grass (i.e. green and yellow foxtail, large crabgrass) and sedge (i.e. purple and yellow nutsedge) weeds. Zeus XC is a 4 pound per gallon containing the active ingredients sulfentrazone. It should be applied as a broadcast soil application to vineyard floors or as a uniform band application directed to the base of the trunk in
vines to provide preemergence control of weeds listed on the label. For broadcast applications, a single application of Zeus XC should be made at 8-12 fl oz per acre. When applied as a banded treatment (50% band or less), refer to the formula in the label for rate and volume. Zeus XC may be applied twice per year. Do not apply more than 12 fl oz product per acre (0.375 lb ai/A) on a broadcast application basis per year. Zeus XC should only be applied to crops that have been established for 3 growing seasons and are in good health and vigor. For best control, Zeus XC should be applied before weeds emerge. If weeds are present, tank mix with a postemergence herbicide to eliminate emerged weeds. Avoid direct or indirect spray contact with crop foliage and fruit. Any contact of the spray solution on the green bark of trunks of young vines must be avoided by wrapping the trunk with a nonporous wrap, grow tubes, or wax containers.
Zeus Prime XC: This is a selective herbicide that provides postemergence contact and soil residual weed control. It may be applied as a burndown and or preemergence application before or after weed emergence for control of susceptible broadleaf weeds. Zeus Prime XC is a 3.5 pound per gallon containing the active ingredients carfentrazone-ethyl and sulfentrazone. Zeus Prime XC should be applied as a uniform broadcast soil application to vineyard floors or as a uniform band application directed to the base of the vines (avoid contact with green foliage) to provide preemergence control of weeds listed in the label. For broadcast applications, a single application of Zeus Prime XC should be made at 7.7 to 15.2 fl oz per acre. Do not apply more than 15.2 fluid ounces per acre per twelve month period. Zeus Prime XC should only be applied to crops that have been established for two growing seasons and are in good health and vigor. For improved weed management, Zeus Prime XC can be applied in a tank mixture with other preemergence and postemergence herbicides.
Alion: This is a preemergence herbicide for control of annual grasses and broadleaf weeds in grapes. This herbicide may be applied to the soil as a uniform broadcast or band application for the prevention of new weed emergence. Alion is 1.67 lbs per gallon containing the active ingredient indaziflam. A single application of Alion should be made at 3.5 to 5 fl oz per acre. Do not apply more than a total of 5.0 fl oz product/A per year or in a 12 month period. Only use this herbicide in established vineyards at least five years after the vines have been planted and are exhibiting normal growth and good vigor. Ensure that the grapes have been planted at least 12 inches deep or that there is 12 inches of soil barrier (berm) between the soil surface and the major portion of the root system prior to using Alion Herbicide or injury may occur.
Venue: This is a nonselective contact herbicide for burn-off of emerged weeds in vine crops. Venue is 0.17 lbs per gallon containing the active ingredient pyraflufen ethyl. For broadleaf weed control apply postharvest, during crop dormancy, or at the prebloom stage of the crop at 1.0 to 4.0 fl oz per acre and no more than 3 applications per season. When applied in-season for broadleaf weed control, it should be applied at the same rate, but no more than 2 applications per season. Keep in mind that a minimum of 30 days between applications is required. Avoid contact with green, uncallused bark of young vines, established less than one year, unless protected from spray contact by nonporous wraps, grow tubes, or waxed containers.
Snapshot: This is a selective preemergence herbicide for control of broadleaf weeds (i.e. redroot pigweed, horseweed, common lambsquarter) and annual grasses (i.e. green and yellow foxtail, large crabgrass) in non-bearing vineyards. Snapshot 2.5 TG is 1.25 lb per 50 lb bag containing the active ingredient trifluralin and isoxaben. It must be applied prior to germination of target weeds, or immediately after cultivation. Length of weed control will vary with the applied rate, weed population, soil conditions, temperature, watering regime, and other factors. Following application, user should monitor and observe level of weed control over time to determine when additional applications may be needed. Applications should be made at 100 to 200 lb per acre. This herbicide must be applied using a drop or rotary-type spreader designed to apply granular herbicides. Calibrate application equipment prior to use according to manufacturer’s directions.
Commercial Grape Growers: Sign up for Ohio Sensitive
Crop Registry by Dave Scurlock, OSU/OARDC Viticulture Outreach Specialist Commercial grape growers this is a free service that the Ohio Department of Agriculture has initiated called Ohio Sensitive Crop Registry. I said FREE, but you and I know nothing is FREE. This service is provided through your tax dollars so, you might as well avail yourself to this service for your frontline of defense against herbicide drift. This is designed to protect you from herbicide drift. If you are registered, a red flag will go up when a commercial or licensed applicator checks this site before applying herbicides to find out where crops are located that are sensitive to certain spray applications such as herbicide. The term, pesticide drift, is used which includes herbicide drift. Our first recommendation is communication with your neighbors who produce agronomic crops such as corn and soybeans to inform them that your GRAPES are extremely sensitive to 2 4D and dicamba herbicides that are typically used for weed burn down. Many corn and soybean growers use commercial applicators to apply these burn down herbicides and the commercial applicators may not know of your existence if you are not registered and accidents may happen. We already have winter, frosts, disease, weeds and insects to battle. We do not need to add another battle to the mix.
Registered users can create maps and provide details of their sensitive locations, which can then be searched by pesticide applicators. The voluntary registry is for organic crops, livestock and forage, as well as for pesticide-sensitive locations including but not limited to: apiaries, fish farms, nurseries, orchards, greenhouses and high tunnels, vegetables and fruit such as brambles, grapes and tomatoes.
Registry data is protected and not available to the general public; only applicators, apiarists and those involved in the commercial production of sensitive crops will be allowed to submit locations and search the registry. Users will need to create an account through the website and will receive log-in details if approved.
Those who wish to create an account must follow several guidelines. Pesticide applicators (whether commercial or private) must provide their license numbers before they can search the registry for sensitive locations around the areas they intend to spray. Maps of these areas, as well as lists of location and producer details, can be downloaded and used to plan spraying schedules and routes.
Apiarists are required to register their hives with the Ohio Department of Agriculture Apiary Program and use their identification number to create an OSCR account. Those who grow organic/sensitive crops or nursery stock are asked to be producing at least half an acre of an individual crop before creating an account. Similarly, those who have greenhouses or high- tunnels should be producing at least half an acre worth of crop annually. These minimum acreage requirements are to help discourage non-commercial entities from overloading the system with
requests. If an issue arises from the acreage limits, this can be worked out with the registry manager; requests are not automatically approved or denied by the system.
Take a minute to register for peace of mind. The registry can be accessed at http://www.agri.ohio.gov/scr/.
Grape Bench Grafting By Shouxin Li (Research Asst.), Thomas Todaro (Graduate Student), Dianne Kinney, Greg Johns, Yvonne Woodworth, and Imed Dami, HCS-OSU.
Due to the extreme cold temperatures experienced during the 2014 Polar Vortex, many
Vitis vinifera varieties died at our research vineyards located in Wooster and Kingsville. Since many varieties were not available in nurseries, we decided to graft vines ourselves. This project was a major undertaking and involved the viticulture group (Diane Kinney, Shouxin Li, Thomas Todaro and yours truly) as well Greg Johns, Manager, and Yvonne Woodworth, Research Assistant, at the Ashtabula Agricultural Research Station (AARS). Shouxin Li and Thomas Todaro describe below the steps involved with bench grafting in their own few words but many pictures. I’d like to take this opportunity to thank Greg for providing his many years of grafting experience as well as his and Yvonne’s assistance with all the steps of grafting. This collaborative project is probably the last one for Greg as he is retiring on April 30. Greg, we thank you for your 30-years of service and dedication to OSU and the grape and wine industry in Ohio. Congratulations on your retirement! We will miss you…
Collecting scion wood: We collected cane samples on 23 December 2014, which is later than preferred. However, critical minimum temperatures were not reached prior to cane collection. We selected medium size, straight and healthy canes.
Preparing the scion wood: Canes were cut into 3-5 bud cuttings about 12” long. The cuttings were bundled into 20-30 cuttings/bundle then soaked in a 1:10 bleach-water solution. Wrapped bundles were then placed in double plastic bags and stored in a cooler at ~35˚F until grafting.
Preparing the rootstock: Rootstocks can be either prepared similarly to the scion or purchased as non-rooted sticks from the nurseries. To accelerate vine growth and readiness (1 year instead of 2), we purchased rooted doormat rootstock plants.
Preparing the scion wood and rootstock: In March, bundles were removed from the cooler and scion canes were pruned to 1-bud cuttings ~3.5’’-long then soaked in water. For size uniformity, rootstocks were also trimmed to the same length of ~12’’. They were also disbudded (buds removed) then placed in a bucket filled with water to cover the roots.
Matching: We matched the size (diameter) of the rootstock and scion as closely as possible. This is a critical step as the success of grafting hinges on good vascular connections between the scion and rootstock.
Omega grafting: We used a German Omega-cut grafting machine. It makes the first 'Omega' cut on the scion wood, and then the second cut ‘interlocks' the scion and its rootstock matching together.
Securing the graft: The graft junction was sealed with grafting wax. The temperature of grafting wax must be warm enough to flow but not so hot to kill plant tissues.
Planting grafted vines: Grafted vines were placed into sleeves filled with Promix. The soil was added in the sleeve from the top and bottom until the plant is snug and there are no air pockets.
! Greg!placing!a!grafted!vine!in!a!plant!sleeve!and!filling!it!with!wetted!Promix!from!top!and! bottom.!! ! Callusing phase: To promote callusing, boxes filled with grafted vines were transferred to a growth chamber set as follows: temperature = 84˚F, relative humidity= 90 %, no light.
“Buckeye Appellation” Website Launched! By Imed Dami and Dianne Kinney, HCS-OSU
http://ohiograpeweb.cfaes.ohio-state.edu
The roll-out of the new “Buckeye Appellation” website of the OSU Grape-Wine Extension Team took place at the Ohio Grape and Wine Conference in February. We are extending the announce- ment of this website launch to our OGEN subscribers. The Buckeye Appellation is the new Ohio State University grape and wine research and extension online resource. Our goal is to increase accessibility of our work at OSU to the general public. We invite you to explore our website and uncover the wealth of information available at your fingertips all in one convenient location.
Our ‘one-stop shop’ site is organized into easy to locate tabs so that you can quickly and efficiently find what it is you are looking for whether you are planning to start a new vineyard and need assistance on suggestions of grape varieties to grow, needing instructions on how to construct a spotted wing drosophila trap or you are curious about dissolved oxygen in your wine bottles. For current research in viticulture and enology, you could visit the "Research" page and discover research projects conducted by OSU researchers and specialists. If you are novice to this cash crop or wanting to refresh your knowledge about commercial grape and wine production in Ohio, you could visit the "Grape Growing" and "Wine Making" pages. To keep you posted of the current situation in Ohio vineyards, learn about research updates from the OSU Team, check out the "Newsletter" page. The most current” Ohio Grape Electronic Newsletter (OGEN)” is always one click away on the right hand side of the homepage as well as “The Grape Exchange”, “Upcoming Events” and “Social Media”. The Grape Exchange is a useful resource for our grape growers and wine producers who are buying or selling products associated with vineyards and wineries. All of these pages receive regular updates so check them often.
The “Resources” and “Weather” tabs are full of information everyone can use on a daily basis but if you feel you still have some questions or just would rather talk to one of our Team members, the “About Us” tab has all the OSU contacts you need.
As we all know, electronic information must be current and up-to-date; so consider this website as work in progress as we continue adding new content and updates so it is useful, informative, and relevant. We have received positive feedback (Thank you!) and we welcome your suggestions.
The construction of the new website would not be possible without the funding provided by the Ohio Grape Industries (OGIC) and for that we are grateful. We are also appreciative of the technical support provided by the OSU Communication Technology staff. Special thanks are extended to the OSU Grape-Wine Team for their contributions. Last but not least is a BIG Thank you to Diane Kinney who has entered all the content of the website and will continue to maintain it. Please visit “Buckeye Appellation” at:
http://ohiograpeweb.cfaes.ohio-state.edu
OARDC Vineyard Update by David Scurlock, Viticulture Outreach Specialist OSU/OARDC
Grape Phenology: The grape development stage based on the Eichorn-Lorenz scale: http://www.winegrowers.info/spraying/development%20stages%20of%20the%20vine.htm is between stages 1 to 3 depending on variety .
Cab franc stage1 April 29 2015
Chardonnay Stage 1-2 April 29 2015
Chambourcin stage 1-3, April 29 2015 bud swell
Riesling Stage 1-2 April 29 2015
Chardonel Stage 1-3 April 29 2015
Traminette Stage 1-3 April 29 2015
Apples in loose open cluster stage April 29 2015
Sweet Cherries at 80% full bloom, April 29 2015
Hop development April 29 2015
Weather Conditions: Weather comparisons of April 2015 vs 10 year average
APRIL 10 YEAR AVERAGE VS. 2015 APRIL DATA Year precip Ave. Max Temp Ave. Min Temp GDD 2014 5.6 62.2 38.8 101 2013 4.1 61.6 36.4 133 2012 1.4 60.2 37.6 69 2011 4.6 60.7 41.6 111 2010 1.7 66.7 40.9 181 2009 3.4 61.2 39.3 132 2008 1.4 64.5 39.6 154 2007 2.3 56.2 36.8 111 2006 1.5 66.2 40.2 151 2005 4.1 63.3 38.1 97
10 year ave. 2005-2014
3.0 62.3 38.9 124
2015 data up to April 2
2.8 60.8 40.1 96
*2014 Data can be a day or two behind 2010-2013 due to computer upload information.
Pest & Disease Situation I have not seen any insects this spring in the vineyard or heard of any issues. This spring is starting off cold and wet so we need to be on our game when spraying commences. Some growers have already put on a liquid lime sulfur or sulforix spray for the control of anthracnose.
Cultural Practices: Pruning is finished in Wooster. We have not applied our first cover spray in the grapes although a couple of sprays have been applied to the apples and sweet cherries. Remember that bloom is the critical spray period not only in grapes but also in other fruit crops to prevent several disease infections depending on the crop. Some growers did apply soy bean oil to delay bud break. Both pre-emergent herbicides and post emergent herbicides have been applied. Be sure to read the weed control article by Dr. Doug Doohan and Mohseni-Moghadam in this issue.
Grower Observations: Grapes have leafed out in the south and just now swelling in the north. We are a little behind last year but not by much even though it feels like it. It was a long winter and it still has not completely let go of its grip.
Winter Injury Assessment at the Piketon South Centers Vineyard by Ryan Slaughter, OSU Viticulture Research Assistant
In sampling our grapes, we collected ten(10) canes each with at least ten(10) buds per cane. We have four varieties we checked: Chambourcin, Vidal, Hibernal and Noiret. The canes were placed indoor at room temperature for 48 hours to thaw. Beginning at the node that was closest to the cordon and using a sharp razor blade, we cut across the bud tip at ½ of its depth. Using a lighted magnifying lens, we looked first at the primary bud then to the secondary and tertiary buds, observing in each whether they were bright green (alive) or brown (dead) and recorded those observations. Moving up the cane to each consecutive bud, we repeated the process until 10 buds were tested. Below are some
Table 2: Significant Dates/Temps in Piketon, OH Prior to Sampling:
Date Max. Daily Temp. °F Min. Daily Temp. °F 2/17/15 23.0 -8.3 2/20/15 15.9 -22.4 2/24/15 28.1 -15.9
Table 3: Significant Date/Temps in Piketon, OH After Sampling
Date
Max. Daily Temp.° F Min. Daily Temp. °F
3/6/15 25.3 -11.6
OARDC and OHIO STATE UNIVERSITY EXTENSION
Spotted Wing Drosophila
Monitoring and Management Webinar Celeste Welty, Dept. of Entomology, State Specialist Jim Jasinski, Dept. of Extension, IPM Program
Join us for a 90 minute webinar on spotted wing Drosophila (SWD), a relatively new pest in Ohio that attacks blackberries, raspberries, blueberries, strawberries, grapes, and peaches. Learn the basics of adult monitoring with traps, cultural controls, how to manage SWD with insecticides once detected, and how to determine if fruit are infested with larvae using a simple salt water test. This webinar will be recorded and posted on the OSU IPM and VegNet websites for later viewing. Register below and the webinar link will be sent to your email.
Need more info? Contact Jim Jasinski, [email protected], 937-484-1526
CFAES provides research and related educational programs to clientele on a nondiscriminatory basis. For
more information: http://go.osu.edu/cfaesdiversity.
OSU Grape & Wine Research & Outreach Specialist Please contact the following Research, Extension/Outreach Specialists, and Educators if you have any questions relating to their respective field of expertise.
Contact Information Area of Expertise & Assistance
Provided Name & Address Phone Email & Website
Dr. Mike Ellis, Emeritus Professor Dept. Plant Pathology 224 Selby Hall -- OARDC 1680 Madison Avenue Wooster, OH 44691
Vineyard weeds and control. Recommendation on herbicides
Dr. Imed Dami, Associate Professor & Viticulture State Specialist Dept. Horticulture & Crop Science 216 Gourley Hall – OARDC 1680 Madison Avenue Wooster, OH 44691
Viticulture research and statewide extension & outreach programs. Recommendation on variety selection. Imed is the primary research contact of the viticulture program.
Contact Information
Area of Expertise& Assistance Provided
Name & Address Phone Email & Website
David Scurlock, Viticulture Outreach Specialist 118 Gourley Hall – OARDC 1680 Madison Avenue Wooster, OH 44691
Evaluation of site suitability for vineyard establishment and all aspects of grape production practices in northern Ohio. David is the primary extension contact of the viticulture program
Todd Steiner, Enology Program Manager & Outreach Specialist Dept. Horticulture & Crop Science 118 Gourley Hall – OARDC 1680 Madison Avenue Wooster, OH 44691
Commercial wine production, sensory evaluation, laboratory analysis/setup and winery establishment. Todd is the primary research and extension contact of the enology program
Dr. Gary Gao , Small Fruit Specialist and Associate Professor, OSU South Centers 1864 Shyville Road, Piketon, OH 45661 OSU Campus in Columbus Room 256B, Howlett Hall, 2001 Fyffe Ct Columbus, OH 43201
Viticulture Research and Outreach, VEAP visits in southern Ohio, vineyard management practices, soil fertility and plant nutrition, fruit quality improvement, variety evaluation, table and wine grape production
Greg Johns, Station Manager Ashtabula Agricultural Research Station 2625 South Ridge Road Kingsville, OH 44048
Winegrape production in Northeast Ohio, especially vinifera varieties
Contact Information
Area of Expertise& Assistance Provided
Name & Address Phone
Email & Website
David Marisson, County Extension Director, Associate Professor & Extension Educator, OSU Extension-Ashtabula County 39 Wall Street Jefferson, Ohio 44047
