VegNet Vol. 13,
No. 24.
November 29, 2006
Ohio State University Extension Vegetable Crops
On the WEB at: http://vegnet.osu.edu
If experiencing problems receiving this
fax, Call 614-292-3857
In This Issue
1. Upcoming Disease
Workshops
2. News from IR4 Weed Control
3. Conference on
Recruiting and Retaining Successful Employees
Upcoming Disease Workshops
Cucumber,
pickle and pepper growers take notice. With the region-wide Downy Mildew outbreak
in cucumbers last year and the ongoing problems with Phytophthora
in vine crops and peppers, there are two workshops available this winter that
will help you manage these important diseases. Plan on
attending both workshops.
1. Vegetable Disease Management Workshop. Part of the Ohio Fruit and Vegetable
Congress, Monday, Jan 15,
2007
This
workshop is designed to focus on vegetable disease management, with a special
emphasis on Downy Mildew, Bacterial disease management, Phytophtora
and more.
Program:
1:30
PM Downy Mildew on Cucumbers: Fungicide
Studies, Spore Trapping, and Recommendations. Dr. Mary Hausbeck,
MSU, Dept. of Plant Pathology
This soilborne fungus is considered a
top threat to production and long-term viability of cucurbitaceous (cucumber,
pumpkin, squash, melon), solanaceous (tomato, pepper,
eggplant) and most recently leguminous (lima, snap and wax beans) vegetables by
growers and processors.
2:15
PM Bacterial Management in Peppers,
Tomatoes, Cucurbits, and Crucifers. Dr. Sally Miller OSU Specialist for vegetable
crop diseases. Dept of Plant Pathology, OSU, OARDC.
2:45 PM Phytophthora
on Vine Crops; Current Research and Management Dr. Mary Hausbeck,
MSU, Dept. of Plant Pathology
Plant pathologists are reporting a significant increase in the
occurrence of Phytophthora blight of vine crops,
including cucumbers, pumpkins, and squash, in many vegetable-growing regions of
the United States. This
devastating disease, caused by a soilborne pathogen
called Phytophthora capsici,
often results in nearly total yield loss.
3:15 AM Phytophthora on Bell Peppers; Current Research and
Management. Dr. Sally Miller. OARDC.
Phytophthora blight,
caused by Phytophthora capsici,
is a devastating disease on both bell and non-bell peppers. Phytophthora
blight causes yield losses up to 100% in pepper fields. P. capsici
has a broad host range, among which cucurbits, eggplants, and tomatoes are
severely affected.
3:45 PM Plectosporium
(White speck) Resistance Trial in Pumpkins. Dr. Lanny
Rhodes, Dept of Plant Pathology, OSU,
Plectosporium blight
(White Speck) is known to cause damage to a wide variety of cucurbit crops in Europe and Asia, but
the strain present in the U.S. seems
to primarily damage pumpkins, summer squash and zucchini. OSU’s
Lanny Rhodes will discuss an evaluation trial with
pumpkin varieties from several other countries and relate how this trial may
impact Ohio pumpkin
production.
For 1
day or full congress registration information, contact: Tom
Sachs - Executive Director Ohio Vegetable and Potato Growers Association, 280
North High St, P.O. Box 182383, Columbus OH 43218-2383, Ph: 614-246-8290, Fx: 614-246-8690, or Email: tsachs@ofbf.org
2. 2007 Phytophthora & Downy Mildew Workshop Planned
MICHIGAN STATE UNIVERSITY, Organizer: Dr. Mary Hausbeck
Department of Plant Pathology &
Vegetable Area of Expertise Team
Vegetable growers are encouraged to attend a full-day workshop to
be held at the Marriott at University
Place in East
Lansing, MI on January 24th, 2007. The workshop will focus on Phytophthora crown and fruit rot and downy mildew. Phytophthora affects cucumber, squash, pumpkin, pepper,
melon, zucchini, tomato, eggplant, and snap bean. Downy mildew is a relatively
new problem for growers of cucumber, squash, melon, and pumpkin in the Midwest.
Educators for this workshop include Dr. Mary Hausbeck
and Dr. Amanda Gevens from Michigan State University, Dr.
Gerald Holmes and Dr. Kelly Ivors from North
Carolina State University, and
Dr. Dan Egel from Purdue University. The
workshop will feature a “hands-on” laboratory to illustrate key components of
the pathogens and highlight control measures. The Marriott at University
Place is located at 300
M.A.C. Avenue, East Lansing, MI 48823, Phone
#: (517)337-4440, Fax #: (517)337-5001. A block of rooms ($119 per room) have
been set aside for this meeting, the reservation code is PATPATA. Go to http://marriott.com/property/propertypage/LANEA
for further information and directions for the Marriott. Please register using
the accompanying registration form.
Vegetable Disease Workshop: Registration Form
2007 Downy Mildew & Phytophthora
Workshop January 24, 2007
Name(s) _______________________
Business/Organization _______________________
Address _______________________
City _______ State/Zip Code _________________
Phone
Enclosed
is $ ($50/person) for people for the Phytophthora
& Downy Mildew Workshop ($75 after January 10). Fee includes lunch, snacks
at break, and parking
Send registration form, with payment (check made out to: Michigan State University), to:
Phytophthora & Downy Mildew Workshop,
c/o Norm Myers, Co. Ext. Dir., MSUE – Oceana County,210 Johnson Street, Hart,
MI 49420
Questions about registration?
Call 231-873-2129 (Kathy Walicki) or
517-355-4576 (Sheila Linderman).
DEADLINE
FOR REGISTRATION IS WEDNESDAY,
JANUARY 17, 2007
News
from IR-4 By Doug Doohan
IR-4 is the national USDA funded project that facilitates the
research needed to support registration of pesticides for specialty crop
vegetables, fruits and ornamentals. For
food crops, funds are allocated to pay for the field and laboratory studies
needed to determine terminal residues of the pesticide of interest in the
harvested portion of the plant. The
Environmental Protection Agency (EPA) uses these data to establish tolerances ie the legal maximum allowed in the marketplace,
based upon a 100 – 1000 times safety factor. Most established pesticide tolerances will
permit a trace residue, usually measured in parts per million (ppm); however, its interesting that market basket surveys
regularly show that 70% of domestically produced product contains zero
detectable pesticide residue. Consider
too, that modern analytical methods measure trace contaminants at concentrations
far smaller that ppm.
Ohio stands
to benefit in future years from food-residue projects that were prioritized
during September at the 2006 IR-4 Food Use Workshop. Prioritization and conduct of a food-residue
project does not ensure that registration will occur, many other obstacles must
be overcome, but data required to establish tolerances is essential. Ohio was
well represented at this Denver meeting
by Bruce Burma and Rich Danhoff, in addition to
several state specialists from OSU.
Don’t hesitate to pass on your thoughts about future pest control needs
to Bruce and Rich as well as university extension personnel. Several IR-4 herbicide food-used projects
that may be critical for Ohio growers
in the future include the following prioritized for 2007 (these are not legal
uses at this time):
- GoalTender (oxyfluorfen) for green onions. Your Ohio
representatives to IR-4 have been working for several years with the
registrant DowAgro Sciences persuading them to
allow a food residue project on this critically needed herbicide. Finally, after reviewing two years of
data from three replicated trials conducted at the OARDC Muck Crops
Research Station, Dow was persuaded that GoalTender
use on green onions was unlikely to represent an unacceptable liability to
the company. Trials to characterize
oxyfluorfen residues in harvested green onions
will be conducted in 2007 in Maryland, Florida, California and Ohio (USDA
staff). However, we have recently
learned from Dow that the EPA has demanded that additional but unrelated
research be conducted on oxyfluorfen before more
tolerances will be granted. Seems
like a case of one step forward and one step back; however, it seems that
Dow is committed to resolving EPA’s new concerns.
- Prowl H2O (pendimethalin) for leaf lettuce and cantaloupe. We’ve evaluated Prowl for leaf and head
lettuce in Ohio on our muck
soils but have not yet accumulated enough data to be convinced that it is
a good fit for our conditions.
Nevertheless requests from other states where lettuce is primarily
grown on mineral students enabled this project to be prioritized. Even if Prowl is not a good fit for
lettuce on muck soils, by no means is all Ohio lettuce grown on muck. For cantaloupe, Prowl will be a lower
cost alternative to presently registered herbicides.
- Outlook (dimethenamid p) for cabbage. Outlook will provide an important
alternative to Dual Magnum, providing better control of nutsedge and common purslane.
- Lorox (linuron) for cilantro/coriander and dill. Lorox has been
labeled for parsley for several years and there has existed a great need
to expand this use to other leafy green herbs. This need has been especially urgent in
the case of cilantro as production of this herb has increased greatly in
recent years. Again safety and
performance studies conducted at the OARDC Muck Crops station were
instrumental in convincing Dupont that Lorox
could be used safely on these crops.
- Harmony GT (thifensulfuron-methyl) for tomato. Ohio research and
the support of Dupont led the way to obtaining this priority A
project. Harmony is already
registered for tomato in Canada where it is
sold as Pinnacle. Harmony will
control several seedling broadleaf weeds,
including biotypes tolerate Sencor, at
relatively advanced stages of growth.
- Reflex (fomesafen) for cantaloupe. Reflex is an older herbicide that has
been used on soybean since the 1980’s.
Recently it received a federal label for snap beans and dry beans. It controls annual broadleaf weeds and
should be a good alternative to currently available herbicides.
Conference Focuses on Recruiting and Retaining Successful
Employees
John Wargowsky, Mid American Ag
and Hort Services, Inc.
Agricultural and horticultural
employers have the opportunity to attend a conference focused on the employee
issues facing their businesses. The Mid American Ag and Hort
Human Resource Conference will be held Jan.
15, 2007 at the Greater Columbus Convention Center in Ohio. It will cover
topics such as advanced recruiting strategies, labor and immigration compliance
issues update, worker safety and workforce development.
Presentations and speakers include the following.
· 9:00-11:50 AM - Experienced
Supervisor Hiring Workshop - Bernie Erven of Erven HR Services, LLC
· 10:30- 11:50
AM – What’s New with Labor and Immigration Compliance? – John Wargowsky, Executive Director, Mid American Ag and Hort Services, Inc.
· 12:00-1:30 PM – Mid American Ag and Hort Services,
Inc. Sixth Annual Meeting and Luncheon – Mike Adolph, President and John Wargowsky, Executive Director
· 1:45-2:45 PM - Business Networking and Developing Career Ladders - Dave Boulay - Management Specialist, Ohio State University South
Centers
· 3:00- 4:30 PM – Developing a Safety Recipe – John Wargowsky
The conference is being held by Mid
American Ag and Hort Services (MAAHS) in conjunction
with the Ohio Fruit and Vegetable Growers Congress, Ohio Direct Agricultural
Marketing Conference and National Bramble Conference, which runs January 15 to
17. Members of MAAHS, Ohio Fruit Growers Society, Ohio Vegetable and Potato
Growers Society, North American Bramble Growers Association and Ohio Direct
Agricultural Marketing Association are entitled to member pricing for the
combined conference. Member pricing starts as low as $65 for members who
register by January 4.
MAAHS is the labor organization for
agricultural and horticultural businesses in Indiana, Kentucky and Ohio. MAAHS focuses on
labor educational programming, labor compliance assistance to members and
obtaining temporary foreign workers.
Those wanting to attend the human
resource conference only should register with MAAHS at www.midamservices.org, maahs@ofbf.org or 614-246-8286.
To register for multiple days of the combined conference visit www.ohiofruit.org, call 614-246-8292 or e-mail growohio@ofbf.org, 614-246-8291
(OFBF voice) — 614-246-8286 (MAAHS voice), 614-361-7849 (mobile) — 614-246-8686
(fax)
jwargows@ofbf.org