December 19, 2005
From: ProMED-mail<promed@promedmail.org>
Source: AgriNews, 17 Dec 2005 [edited]
<http://www.agrinewspubs.com/Main.asp?SectionID=1&SubSectionID=207&ArticleID=9491>
Soybean rust found in Kentucky for the first time
Soybean rust, Asian strain (ASR) has been found for the 1st time
ever in Kentucky, the U.S. Department of Agriculture confirmed
on 18 Nov 2005. The disease was found on kudzu in Caldwell
County, the northernmost site where rust has been found, USDA
reported. Caldwell County is in the western part of the state,
and this is the 1st ASR find in Kentucky and now the
northern-most U.S. location this year [2005]. University of
Kentucky plant pathologist Don Hershman found the one leaf with
rust lesions and pustules among several he picked up in a
Princeton kudzu patch in western Kentucky.
As the suspected ASR sample was the 1st in the state, it was
sent to the USDA lab in Beltsville, Maryland for confirmation,
where it was confirmed by real-time PCR and microscopic
observation.
Hershman also said the kudzu patch with the infected leaf was
about a mile away "as the crow flies" from a spore trap at the
UK Research and Education Center that picked up "rust-like"
spores 5 times this summer and fall [2005]. That kudzu patch has
been killed back by the cold temperatures.
A total of 9 states have been infected with soybean rust. USDA
also recently reported that North Carolina had 3 more positive
counties: Greene, Lenoir and Pitt. Alabama now has 31 counties
reported positive with rust; Florida, 23; Georgia, 35;
Mississippi, 2; South Carolina, 23; North Carolina, 18;
Louisiana, one; Texas, one; and Kentucky, one. As the growing
season has finished or nearly finished in most regions, the
threat of ASR has diminished. It may be expected that rust will
continue to be found in more counties within states already
reporting rust and in adjacent states without causing any
economic damage.
--
ProMED-mail
<promed@promedmail.org>
[This was not the last posting of ASR in the 2005 crop year. ASR
was recorded in western Kentucky in late November 2005. -
Mod.DH]
[see also in the
archive:
Soybean rust, Asian strain - USA (FL): 1st report 2005
20050309.0693 Soybean rust, Asian strain - USA (GA)
20050429.1196 Soybean rust, Asian strain - USA (GA)
20050505.1245 Soybean rust, Asian strain - USA (FL) (02)
20050620.1731 Soybean rust, Asian strain - USA (LA)
20050624.1769 Soybean rust, Asian strain - USA (multistate)
20050702.1868 Soybean rust, Asian strain - USA (multistate)(02):
Florida 20050708.1938 Soybean rust, Asian strain - USA
(multistate)(03) 20050714.2005 Soybean rust, Asian strain - USA
(AL) 20050715.2029 Asian soybean rust, Asian strain - USA
(multistate) 20050724.2133 Soybean rust - USA (multistate)(04)
20050806.2289 Soybean rust, Asian strain - USA (multistate)(05):
susp. 20050806.2291 Soybean rust, Asian strain - USA
(Multistate)(06) 20050808.2318 Soybean rust, Asian strain - USA
(FL)(03) 20050815.2386 Soybean rust, Asian strain - USA (SC)
20050818.2414 Soybean rust, Asian strain - Uruguay 20050819.2435
Soybean rust, Asian strain - USA (AL)(02) 20050824.2496 Soybean
rust, Asian strain - USA (AL)(03) 20050826.2528 Soybean rust,
Asian strain - USA (GA)(03) 20050827.2531 Soybean rust, Asian
strain - USA (multistate)(04) 20050829.2556 Soybean rust, Asian
strain - USA (GA) (04) 20050905.2623 Soybean rust, Asian strain
- USA (multistate) (07) 20050909.2672 Soybean rust, Asian strain
- USA (multistate)(08) 20050913.2711 Soybean rust, Asian strain
- USA (AL)(04) 20050917.2743 Soybean rust, Asian strain - USA
(GA)(05) 20051005.2902 Soybean rust, Asian strain, kudzu control
20051006.2914 Soybean rust, Asian strain - USA (multistate)(09)
20051101.3187 Soybean rust, Asian strain - USA (KY): 1st report
20051123.3404 Soybean rust, Asian strain - USA (multistate) (10)
20051218.3628]
