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CapitalPress.com
Friday, April 23, 2021
People & Places
Weed specialist zeros in
on herbicide resistance
By CAROL RYAN DUMAS
Capital Press
Established 1928
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KIMBERLY, Idaho — The new-
est weed specialist at the Univer-
sity of Idaho Kimberly Research
and Extension Center crossed an
ocean to further his studies in weed
science.
Originally from Africa, Albert
Adjesiwor earned a bachelor’s
degree in agriculture at a univer-
sity in Kumasi, Ghana, and worked
at the university as a teaching and
research assistant for a year.
He then set out for the Univer-
sity of Wyoming where he earned
a master’s degree in agronomy and
a Ph.D. in plant science. He stayed
with the university for two years as
a post-doctoral researcher, primar-
ily working in weed science and the
chemical control of weeds in corn,
cereal crops, dry beans and sugar
beets.
In July 2020, he started with
the University of Idaho to research
weed control in those same crops
and alfalfa.
“My primary focus is weed man-
agement in agronomic crops,” he
said.
The work starts indoors screen-
ing weeds for resistance. People can
fill out a form online and mail him
samples to have weed seed tested at
no cost. He also collects seeds from
crop fields in the area. If he sees a
weedy field, he stops the car, gets
out, collects seeds and logs the field
location with GPS.
Seeds are grown out and sprayed
with different herbicides at different
application rates to find out which
might survive and determine resis-
tance. If survival differs among the
same weed species, he can send
plants to the university’s laboratory
or to an outside facility to extract
DNA to confirm the mechanism by
which they are resistant.
“We already have some weeds
that have developed resistance to
some commonly used herbicides,”
he said.
Kochia is resistant to glyphosate,
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ALBERT ADJESIWOR
published every Friday.
Age: 32
Occupation: Assistant professor
and extension weed specialist,
University of Idaho
Capital Press (ISSN 0740-3704) is
published weekly by EO Media Group,
2870 Broadway NE, Salem OR 97303.
Location: Kimberly, Idaho
Carol Ryan Dumas/Capital Press
Albert Adjesiwor, University of Idaho extension weed specialist, ex-
plains how weeds are grown and treated with herbicides to screen for
resistance at the Kimberly Research and Extension Center on April 15.
2, 4-D, and most group 2 herbicides
such as Raptor. Pigweed is resistant
to photosynthesis II inhibitors, such
as Metribuzin. Some populations of
lambsquarters are resistant to gly-
phosate, and he’s currently testing to
determine if the weeds are resistant
to additional herbicides, he said.
He’s also conducting weed-con-
trol trials in alfalfa, small grains,
sugar beets and dry beans this
season.
Those trials include getting good
weed control in first-year alfalfa.
Raptor is commonly used but
doesn’t always provide good con-
trol, so he’ll be testing for what else
can be used in the establishment
year. Another trial will be pre-plant
options for direct seeding or no-till
small cereal grains, as well as deter-
mining the best time to terminate
cover crops.
He’ll also be testing a chemical
labeled for use in Europe in sugar
beets to analyze weed control and
crop-rotation restrictions. He’ll also
be looking for alternative herbicides
that can be used in dry beans, which
have limited options.
Adjesiwor is also leading a new
project funded by the Idaho Wheat
Commission to find out what hap-
pens to weed seed in the soil in a
wheat and alfalfa rotation, whether
the weeds will come back when
wheat is planted or what can be used
to kill the seeds in alfalfa.
He and others at the university are
also trying to set up a program that
includes a website growers can go to
with their weed problems and get rec-
ommendations on what they can try
and what it would cost. The program
would include shipping chemicals to
growers to try on small areas.
“We think that would be a good
way to address problems growers
are having,” he said.
The program is aimed at pro-
viding an integrated approach, with
consultation on such things as weed
control, best varieties, fertilizers and
irrigation, to connect growers with
the right people at the university.
“Growers could test out A, B
and C and see what works best. If
it works, growers are going to see
Education: Bachelor’s degree in
agriculture, Kwame Nkrumah Uni-
versity of Science and Technology,
Kumasi, Ghana, 2013; master’s de-
gree in agronomy, 2015, and Ph.D.
in plant science, 2018, University
of Wyoming, Laramie
Associations: Weed Science
Society of America; Western
Society of Weed Science, public
relations committee, diversity and
inclusion ad-hoc committee.
Family: Wife, Lucinda
For more information including
Adjesiwor’s contact information
and the form to submit seeds
for screening, visit: www.uidaho.
edu/weed-science
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Idaho
Carol Ryan Dumas ..............208-860-3898
Boise
Brad Carlson .......................208-914-8264
Western Washington
the results; I don’t have to convince
them it works,” he said.
He has also teamed up with
researchers at the University of
Wyoming and University of Nebras-
ka-Lincoln to develop an interac-
tive web application that would esti-
mate the risk of herbicide resistance.
Growers could select the weed and
the crop and find out what herbi-
cides are labeled for Idaho, the level
of control, the cost, the risk of resis-
tance and implications for crop
rotation.
“I would like people to reach out
if they have any weed-management
questions,” he said.
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Washington Winegrowers
re-elects board members
By SIERRA DAWN McCLAIN
Capital Press
At their virtual annual meet-
ing last week, members of
Washington Winegrowers Asso-
ciation, which represents state’s
wine industry, voted to re-elect
incumbents to three-year terms
on the board of directors.
The re-elected incumbents
included Becca De Kleine of
Four Feathers Wine Estates
in Prosser, Scott Williams of
Kiona Vineyards & Winery in
Benton City and Shane Collins
of Rocky Pond Estate Winery in
Chelan.
De Kleine studied viticul-
ture and enology at Washing-
ton State University. As a stu-
dent, she worked at several
large-scale wineries, and was
then hired to help develop Four
Feathers Wine Estates, where
she now serves as the general
manager and director of wine-
making. She is also president of
the Washington Wine Technical
Group.
Williams has been involved
in the Washington wine industry
since 1972, when he helped his
dad clear land and plant the first
vineyard on Red Mountain. He
studied agricultural engineering
at Washington State University,
managed and planted vineyards
for others until 1984, then went
to work full-time for Kiona
Vineyards. Although Williams
has transitioned winery man-
Spokane junior livestock
show to be held in person
Mail rates paid in advance
Easy Pay U.S. $4 /month
(direct withdrawal from bank
or credit card account)
1 year U.S. ...........................................$55
2 years U.S. ........................................$100
By MATTHEW WEAVER
Capital Press
1 year Canada .....................................$275
1 year other countries ...........call for quote
Washington Department of Ecology
Washington Winegrowers
Association members have
re-elected three board
members.
agement and winemaking to his
sons, he continues to serve the
winemaking community.
Collins is a fourth-genera-
tion orchardist. He studied com-
munication from Washington
State University, followed by
viticulture and fermentation sci-
ence at the Walla Walla Institute
of Enology and Viticulture. He
has held leadership positions in
the Lake Chelan Wine Alliance,
Cascade Valley Wine Country
and the Washington Winegrow-
ers Association.
The remaining board mem-
bers are Patrick Rawn of Two
Mountain Winery in Zillah,
James Mantone of Syncline
Wines in Lyle, Mike Means of
Ste. Michelle Wine Estates in
Paterson, John Derrick of Mer-
cer Canyons in Prosser, Car-
rie Arredondo of Cave B Estate
Winery in Quincy and Steele
Brown of Golden West Vine-
yards in Royal City.
The Junior Livestock
Show of Spokane will be
live and in person this year,
although it will look a little
different due to COVID-19.
“We’re making lots of
adjustments,”
manager
Lynn Cotter told the Cap-
ital Press.
The show will be May
6-8 at the Spokane County
Fair and Expo Center, one
day shorter than normal. A
live auction will be May 8.
Face masks and social
distancing are required.
Class sizes will be slightly
reduced. No visitors or ven-
dors will be present on the
grounds.
“This is what we have to
do this year,” Cotter said.
The show’s mission is
to give kids the experience
of raising and selling an
animal.
Meeting in person gives
participants better inter-
actions with judges, more
feedback and experience
showing their animals,
Cotter added.
The number of partici-
pants is slightly down, with
roughly 400. Cotter esti-
mates the number of ani-
mals is down about 10%.
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P.O. Box 2048
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News: Contact the main office
Matthew Weaver/Capital Press File
Marshall Bye of Pomeroy, Wash., waits in line to
show his steer, Tart, in May 2019 at the Junior Live-
stock Show of Spokane. After going virtual in 2020
due to the COVID-19 pandemic, the show will return
to in-person this year, with social distancing restric-
tions and masks, manager Lynn Cotter says.
or news staff member closest to you,
send the information to
newsroom@capitalpress.com
or mail it to “Newsroom,” c/o Capital Press.
Include a contact telephone number.
Letters to the Editor: Send your
She’s keeping track of
the numbers in the fair-
grounds’ barns to allow
social distancing.
The costs of raising an
animal have gone up due
to inflation, Cotter said.
Cotter expects height-
ened demand for meat
after the closure last year
due to the pandemic.
“The meat prices and
meat demand are there for
the consumer,” she said.
Last year the show
held a virtual sale, and
this year’s show also
includes online sales
in addition to the live
auction.
Cotter said partic-
ipants got “fabulous”
prices selling online.
“They had to learn to
go out and sell that ani-
mal themselves, so I hope
that continues on into this
year,” she said.
comments on agriculture-related public
issues to opinions@capitalpress.com, or
mail your letter to “Opinion,” c/o Capital
Press. Letters should be limited to
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CALENDAR
Submit upcoming ag-related
events on www.capitalpress.com
or by email to newsroom@capital-
press.com.
FRIDAY-SUNDAY
APRIL 23-25
Oregon Ag Fest (drive-
thru): 11 a.m.-5 p.m. Clacka-
mas County Event Center, 694
NE Fourth Ave., Canby, Ore. Join
us for the Drive Thru Ag Fest
to experience the incredible
world of Oregon agriculture, in
a fun-filled, drive thru environ-
ment, and leave our event with
an “Ag-venture” kit filled with
activities, seedlings and more
to continue the fun at home.
The three-day event, aimed to
help families better understand
where their food, fiber and flora
come from, is a unique learn-
ing experience, where drive-by
exhibits make learning about
Oregon’s vast agricultural indus-
try educational and entertaining.
Tickets are $22 per vehicle and
are available online at https://
oragfest.com/
that are making managing their
manure difficult? Join Clark Con-
servation District for a presenta-
tion by Alayne Blickle of Horses
for Clean Water about creative
and practical solutions to solv-
ing your mud and manure issues
and keeping our streams clean.
This is the first of a three-part
webinar series, Manure Matters.
Contact: Sam Frundle, sfrundle@
clarkcd.org
WEDNESDAY MAY 5
THURSDAY-SATURDAY
MAY 6-8
Got Manure? Great Ideas
for Manure Management (vir-
tual): 6-7:30 p.m. Do you have
horses, livestock, or other critters
Junior Livestock Show of
Spokane (live): 9 a.m. Spokane
County Fair and Expo Center, 404
N. Havana, St., Spokane Valley,
Wash. The Junior Livestock Show
of Spokane will be in person this
year. A live auction will be May
8. Face masks and social distanc-
ing are required. Website: www.
juniorshow.org
WEDNESDAY MAY 12
Poop in the Pasture? Ideas for
Pasture Management. 6-7:30 p.m.
Join Clark Conservation District to
learn about best management prac-
tices for your pasture. Whether you
continually graze or rotational graze,
there are solutions to improve pro-
ductivity. Lisa Schuchman from
USDA-NRCS will teach you how to
get the most out of your pasture sys-
tem while also keeping poop out of
surface waters. This is the second of
a three-part webinar series, Manure
Matters. Contact: Sam Frundle, sfrun-
dle@clarkcd.org
THURSDAY-SATURDAY
MAY 13-15
Washington FFA Conven-
tion (virtual): The convention will
maintain its traditional agenda,
with one session streamed on
Thursday and Friday evenings and
two on Saturday. The new state
officers will be announced Satur-
day evening. Website: www.wash-
ingtonffa.org/91st-convention
Index
Markets .................................................10
Opinion ...................................................6
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staff and to our readers.
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caption, please call the Capital Press news
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