Alt— Lancaster Farming, Saturday, April 10,1912
Yerticillium wilt help available to Pa. farmers
UNIVERSITY PARK - While
putting in this year’s alfalfa crop,
Pennsylvania farmers have access
to at least three Verticilhuxn wilt
resistant varieties with more
expected next year, reported
Donald Barnes, secretary of the
National Alfalfa Improvement
Conference.
Barnes, also a research
geneticist at the University of
Minnesota, said small quantities of
the following resistant varieties
are available this year. Apollo II
by North American Plant
Breeders; Trumpeter by Nor
thrup-King and Company; and WL
316. A fourth variety, Vernema has
been developed by the USDA and
Washington State University, but
Barnes reported that seed is
currently not available.
In addition to the use of
resistance varieties, farmers can
furthur control the disease with
proper crop rotation and Thiram
applications, said USDA plant
pathologist Ken Leath.
Crop rotation, with two years
minimum between alfalfa crops
should help to decrease fungal
inoculum said Leath. However, he
warned, other plants including red
clover, Canada thistle, sheperd's
purse and yellow rocket can
harbor the pathogen.
Thiram, applied correctly and at
proper dosage, does not interfere
with nodulation, will kill most
fungi within a seed lot and may
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WHOLESALE & RETAIL
BOYD’S SEED CENTER, INC.
306 lona Rd Lebanon, Pa 17042
Phone 717-272-8943
delay introduction of the disease
into a field, Leath explained.
Although Thiram, a nonsystemic
fungicide, can be expected to kill
the fungi on contact when applied
to the exterior of the seeds, the
fungicide will not kill fungi borne
within seed and possibly not the
fungi borne within any ac
companying plant debris, warned
Extension agronomist John
Baylor.
The alfalfa-killing fungus, which
resembles fusanum wilt and
anthracnose, was first discovered
last summer on a few Central
Pennsylvania farms. However,
subsequent state-wide checks for
the fungus were negative, Leath
confirmed.
Leath explained the fungus,
native to Europe, is usually found
in cooler climates. The disease,
first discovered in the U.S. in 1977,
showed up in Idaho, Washington
and Oregon, major seed producing
states. Wisconsm and New York
also experienced Verticillium
damage in 1980.
Although the same fungus exists
now in both Europe and the U.S.,
the big difference, said Leath, is
the stage of the disease.
In Europe, the fungus produces
spores on the outside of the alfalfa
stems and easily can be carried in
the wind or rain.
However, the disease discovered
in Centre County last year was
located within the stem and roots
and would move slowly or creep
along within a field. The fungus
showed up in 1978 seedmgs and
Leath explained the disease
worsens in the second and third
year of the stand.
Verticilluim wilt interferes with
WASHINGTON, D.C. -
Producers with certain 1980 and
1981 crop commodity loans now
have the option to extend their
loans for an extra year, according
to Under Secretary of Agriculture
Seeley Lodwick.
“This option is being offered
because prices for these com
modities are currently low,”
Lodwick said.
The option applies to all 1980-
crop barley, corn, oats, grain
sorghum and wheat loans, and all
Consistent Winners!
In 1980 and 1981, The Milton Hershey School Farms won the grand champion hay silage award; they
also won the reserve grand champion alfalfa growing contest. In 1979, Daniel Schrack broke the 9 ton
barrier for the first time in Pennsylvania by producing 9.1 tons of dry hay per acre
WL3II Resistant to Anthracnose. One of the highest yielding varieties a consistent winner 1
WL3I3 New in 1981. Resistant to Phytophthora root rot and anthracnose
WL3I6 Resistant to Verticillium Wilt, which is the new threat to alfalfa yields and stands
y WL22I A new winter hardy superior in yield and disease resistance.
▼ WL3IS Well adapted to the northeastern US , dark green in color with superior disease resistance
WL3IB Phytophthora root rot resistance, designed for wetter soils
WL22O Excellent winter hardiness and resistance to Anthracnose.
BEACHLEY-HARDY
Field and Grass Seeds
Camp Hill, PA 17011
(717) 737-4529
USDA extends maturity date
on some 1980-81 crop loans
For
Yield Quality
(From left) Dr. Joseph Graham, Plant Pathologist with W-L
Research, Inc , Alfred Dugan, Director of Research with Milton
Hershey School Farms, and Kenneth Beachley, President of
Beachley-Hardy Seed. Co with the award for the 1981
Forage Silage winner, captured by WL 311 at the Hay Crop
Silage Show.
A Consistent Winner
All W-L varieties have multiple pest resistance
water movement throughout the
plant, said Leath. The leaflets
wither and turn brown followed by
stem dehydration. Eventually, the
fungus invades the crown and kills
the plant.
Leath suggested that farmers
familiarize themselves with the
following symptoms:
✓ Yellow blotchmess of leaflets
on a single stem;
✓V-shaped yellow segments
f orm at the tips of leaflets. This
1981-crop barley, oats, rye ana
wheat loans. Ail producers with
outstanding loans on these com
modities are eligible, Lodwxck
said.
Producers extending their 1900-
crop loans for an additional year
will be charged an interest rate of
12.25 percent through Dec. 31,1962.
This rate will be subject to change
Jan. 1, 1983, to reflect the cost to
the Commodity Credit Corporation
of borrowing from the U.S.
e * If fo tmhough
Beachley-Hardy Seed Co.
Camp Hill, PA 17011
Please send more information on
these alfalfa varieties □
Name
Address
Town
-i
often turns pinkish-brown.
Younger leaflets curl upward or
inward from the tip or twist along
midrib to form a loose spiral;
die and turn a light-tan
color, but stem remains green and
erect;
Roots are often yellow-orange
inside, but this symptom is not
very reliable;
plants get
progressively weaker and die.
Treasury.
Extended 1981-crop loans will
continue to bear interest at a rate
applicable to the loan. Interest on
1981-crop loans is calculated to
reflect the CCC’s cost of borrowing
from the U.S. Treasury.
Producers wishing to
then- loans should contact tor
county office of USDA’s
Agricultural Stabilization and
Conservation Service, Lodwick
said.
Please send name of nearest dealer □
Stati