A
ProMED-mail post
ProMED-mail is a program of the
International Society for Infectious Diseases
October 13, 2006
From: ProMED-mail <promed@promedmail.org>
Source: stopsoybeanrust.com
[edited]
<http://www.stopsoybeanrust.com/viewStory.asp?StoryID=981>
Asian soybean rust has reached the state
of Illinois for the 1st time ever, found in Pope County in
extreme southern Illinois. It's the 10th state with rust in
2006.
On top of several rust finds in other
states yesterday and today, the discovery brings the United
States total to 120 rust-positive counties and parishes in 10
states, with 98 of those finds on soybeans. Pope County is near
the rust-infected counties in eastern Kentucky, and just a bit
south of the northernmost rust county, Union County, Kentucky.
In a news release about the find,
Illinois officials said the discovery is no cause for major
alarm to growers in the state. "The arrival of rust so late in
the year will have no impact on the 2006 soybean crop," said
plant pathologist Suzanne Bissonnette, who serves as the soybean
rust coordinator for University of Illinois Extension. "The
soybean harvest is already well under way across much of the
state. Those areas that have experienced a hard frost will not
be affected at all. No management actions should be undertaken
by growers or commercial applicators at this time."
According to the Illinois commentary on
<http://www.sbrusa.net>:
"Soybean rust was detected for the 1st time in Illinois on a
sample taken 11 Oct 2006. The find was in the extreme southern
Illinois in Pope County on late group V soybeans. A soybean
sample was taken from soybeans adjacent to a mature soybean plot
at the University of Illinois Department of Crop Sciences Dixon
Springs Agricultural Center.
"University of Illinois Plant Clinic
director Nancy Pataky and Dr Glen Hartman USDA-ARS, soybean
plant pathologist, observed the sample and sent the sample to
the National Mycologist USDA-ARS in Beltsville, Maryland, for
positive confirmation and species verification as indicated by
the National protocol for handling of first soybean rust samples
in a state.
Confirmation of soybean rust was
received 13 Oct 2006. Adjacent counties are being sampled to
determine the spread of the outbreak.
"The finding of soybean rust in southern
Illinois was not unexpected," the commentary said. "Kentucky has
recently reported soybean rust in 8 counties adjacent to
southern Illinois, and our sentinel personnel were continuing to
observe the situation in Illinois. The finding of soybean rust
in Illinois at this time will have NO impact on the 2006 soybean
crop.
"Soybean harvest is well under way
across the state. All areas of Illinois that have experienced a
hard frost also will not be affected in any way.
However, information on the extent of
this outbreak will greatly facilitate research on soybean rust
and aid in the refinement of predictive models for soybean rust.
NO management actions should be undertaken by growers or
commercial applicators at this time."
Source: Illinois commentary on <http://www.sbrusa.net>
and Univ. of Illinois news release.
ProMED-mail
<promed@promedmail.org>
[Asian soybean rust (ASR ) is a plant
disease caused by the fungus _Phakopsora pachyrhizi_ and was
introduced into the USA in 2004. In addition to the crop plant
soybean (_Glycine max_), cowpeas, green beans, and other edible
legumes could be affected by the ASR pathogen, which causes
defoliation and yield reduction. Kudzu (_Pueraria lobata_, also
known as Japanese arrowroot) is an important alternate host for
the pathogen in southern states of the USA.
This is the 1st report of ASR in
Illinois. The article makes clear that the report comes as no
surprise, given the proximity to other detections of ASR in the
adjacent state of Kentucky. It also notes that at this late
stage of the soybean crop season the impact will be minimal.
This report will be added to a subsequent posting which will
summarise all finds of ASR in USA since the last summary
(20060915.2611), which was posted on 15 Sep 2006.
Maps:
Asian soybean rust outbreaks 2006 <http://www.sbrusa.net>
Pictures:<http://www.dtnsoybeanrustcenter.com/index.cfm?show=65&mid=60&page=ALL>
Diagnosis cards (broadband best) <http://www.aphis.usda.gov/lpa/issues/sbr/SBR_IDcard_11-04.pdf>
Links: <http://www.sbrusa.net>
National commentary, updates from states, maps, chronology.
<http://www.stopsoybeanrust.com/mc_home.asp>
Latest news, articles, maps and tracking information.
<http://www.dtnsoybeanrustcenter.com/index.cfm?show=10&mid=31>
Latest news, articles and other information.
More links on ASR:
<http://www.stopsoybeanrust.com/mc_resources.asp>
- Mod.JAD]
[see also in the
archive:
Soybean rust,
Asian strain update 2006 (11): USA 20060915.2611 Soybean rust,
Asian strain update 2006 (10): USA 20060815.2288 Soybean rust,
Asian strain update 2006 (09): USA 20060802.2143 Soybean rust,
Asian strain Update 2006 (08): USA 20060711.1898 Soybean rust,
Asian strain update 2006 (07): USA 20060703.1830 Soybean rust,
Asian strain update 2006 (06): USA 20060616.1667 Soybean rust,
Asian strain update 2006 (05): USA 20060612.1642 Soybean rust,
Asian strain update 2006 (04): USA 20060518.1402 Soybean rust,
Asian strain update 2006 (03): USA 20060226.0622 Soybean rust,
Asian strain update 2006 (02): USA 20060221.0568 Soybean rust -
Mexico: 1st report 20060219.0546 Soybean rust, Asian strain
update 2006 20060214.0482 Soybean rust, Asian strain - USA (GA)
20060208.0415 ProMED-Plant Disease Report: July - December 2005
20060201.0331 2005
Soybean rust, Asian strain - USA: 2005
disease summary 20051228.3694 Soybean rust, Asian strain - USA
(KY)(02): confirmed 20051219.3640 Soybean rust, Asian strain -
USA (multistate) (10) 20051218.3628 Soybean rust, Asian strain -
USA (KY): 1st report 20051123.3404 Soybean rust, Asian strain -
USA (multistate)(09) 20051101.3187 Soybean rust, Asian strain,
kudzu control 20051006.2914 Soybean rust, Asian strain - USA
(GA)(05) 20051005.2902 Soybean rust, Asian strain - USA (AL)(04)
20050917.2743 Soybean rust, Asian strain - USA (multistate)(08)
20050913.2711 Soybean rust, Asian strain - USA (multistate) (07)
20050909.2672 Soybean rust, Asian strain - USA (GA) (04)
20050905.2623 Soybean rust, Asian strain - USA (multistate)(04)
20050829.2556 Soybean rust, Asian strain - USA (GA)(03)
20050827.2531 Soybean rust, Asian strain - USA (AL)(03)
20050826.2528 Soybean rust, Asian strain - USA (AL)(02)
20050824.2496 Soybean rust, Asian strain - USA (SC)
20050818.2414 Soybean rust, Asian strain - USA (FL)(03)
20050815.2386 Soybean rust, Asian strain - USA (Multistate)(06)
20050808.2318 Soybean rust, Asian strain - USA (multistate)(05):
susp. 20050806.2291 Soybean rust - USA (multistate)(04)
20050806.2289 Asian soybean rust, Asian strain - USA
(multistate) 20050724.2133 Soybean rust, Asian strain - USA (AL)
20050715.2029 Soybean rust, Asian strain - USA (multistate)(03)
20050714.2005 Soybean rust, Asian strain - USA (multistate)(02):
Florida 20050708.1938 Soybean rust, Asian strain - USA
(multistate) 20050702.1868 Soybean rust, Asian strain - USA (LA)
20050624.1769 Soybean rust, Asian strain - USA (FL) (02)
20050620.1731 Soybean rust, Asian strain - USA (GA)
20050505.1245 Soybean rust, Asian strain - USA (GA)
20050429.1196 Soybean rust, Asian strain - USA (FL): 1st report
2005 20050309.0693] |
