A
ProMED-mail post
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International Society for Infectious Diseases
February 16, 2006 From: ProMED-mail<promed@promedmail.org>
Source: European Plant Protection Organization (EPPO), Reporting
Service, 2006 No.12 [edited] <http://archives.eppo.org/EPPOReporting/Reporting_Archives.htm>
The NPPO of Israel (Plant Protection and Inspection Services)
informed the EPPO Secretariat that the bacterium _Acidovorax
avenae_ subsp. _citrulli_, a quarantine pest for Israel, has
been found infecting watermelon (_Citrullus lanatus_) and melon
(_Cucumis melo_) at a limited number of production sites.
Eradication measures have been implemented at these sites and
national surveillance is ongoing.
The status of _Acidovorax avenae_ subsp. _citrulli_ in Israel is
officially declared as follows: Present, only in some areas,
under eradication.
Source: NPPO of Israel, 2006-01
--
ProMED-mail
<promed@promedmail.org>
[Bacterial fruit blotch has great potential to cause significant
economic losses to cucurbit production and has been responsible
for up to 90 percent losses of marketable yield in some
watermelon fields. Although all cucurbits are susceptible,
bacterial fruit blotch is only a problem on watermelon. The
fruit symptoms (irregularly shaped water-soaked lesions with
cracks) that are most obvious and distinctive. Fruit blotch can
be introduced in infected
seeds as part of the international seed trade. PCR-based
detection methods in seed are being developed. Use of clean seed
and disease-free transplants is necessary in order to manage the
disease. Because the pathogen is seedborne, and a significant
portion of commercial watermelon fields are planted with
seedlings raised in greenhouses or other transplant production
facilities, recognition of symptoms on seedlings is important.
Control in the field involves rotation out of cucurbits and
control of volunteer watermelon plants. Sprinkler irrigation can
lead to spread through the field.
Links:
<http://www.ipm.ucdavis.edu/PMG/r116101711.html>
<http://www.apsnet.org/education/LessonsPlantPath/BacterialBlotch/Default.htm>
<http://www.plantmanagementnetwork.org/pub/php/management/bacterialblotch/>
<http://www.tpp.uq.edu.au/disease/research/a12c04.htm>
- Mod.JAD]
[see also in the
archive:
2001
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Acidovorax avenae subsp. avenae, rice - Burkina Faso
20010714.1362] |