[MPWG] basil-a little more information

[Jeanine Davis]

Just an update to that information (which was released about 10 years ago).
There are now several resistant and tolerant varieties available, e.g.,
Nufar and Aroma 2.  
 
Jeanine
 

Jeanine M. Davis 
Assoc. Professor & Extension Specialist 
Dept. of Horticultural Science 
NC State University 
Mtn. Hort. Crops Research & Extension Ctr 
455 Research Drive, Fletcher, NC 28732 
Phone: 828-684-3562   FAX: 828-684-8715 
Email: Jeanine_Davis at ncsu.edu 
Websites:  http://ncherb.org <http://ncherb.org/>  
http://ncspecialtycrops.org <http://ncspecialtycrops.org/>  
http://ncorganic.org <http://ncorganic.org/>  
http://ncmedicinalherbs.org <http://ncmedicinalherbs.org/>  

 

  _____  

From: mpwg-bounces at lists.plantconservation.org
[mailto:mpwg-bounces at lists.plantconservation.org] On Behalf Of Lucy Pongetti
Sent: Monday, January 14, 2008 10:59 AM
To: Kathy Schlosser; mpwg at lists.plantconservation.org
Cc: Moore, Christine; Rexford Talbert; Gloria McClure;
director at herbsociety.org; Anne Abbott
Subject: Re: [MPWG] basil



Yes, thank you.  

 

Lucy Pongetti
Grants Coordinator
City of Bonita Springs
9101 Bonita Beach Road
Bonita Springs, FL 34135
239-949-6262
email: lucy.pongetti at cityofbonitasprings.org
"The greatest achievements were at first and for a time dreams. The oak
sleeps in the acorn." James Allen

  _____  

From: E. Steve Schlosser, Jr. [mailto:eschlosserjr at triad.rr.com] On Behalf
Of Kathy Schlosser
Sent: Monday, January 14, 2008 8:33 AM
To: Lucy Pongetti; mpwg at lists.plantconservation.org
Cc: director at herbsociety.org; 'Anne Abbott'; 'Rexford Talbert'; 'Gloria
McClure'; 'Moore, Christine'
Subject: RE: [MPWG] basil

 

Could this be the disease you are referencing?

Kathy Schlosser

"A devastating basil wilt disease caused by a soilborne pathogenic fungus,
Fusarium oxysporum f. sp. basilicum, was first discovered in the U.S. in
1991 and identified in N.C. in 1992. Plants infected with this disease
usually grow normally until they are six to twelve inches tall, then they
become stunted and suddenly wilt. Initial symptoms usually include brown
streaks on the stems, discoloration of the internal stem tissue, and sudden
leaf drop. Interestingly, only sweet basil is affected. Some of the
specialty basils, such as lemon basil and purple basil, show some resistance
to the disease. 

The disease is introduced into fields, hydroponic systems, and greenhouse
culture primarily through contaminated seed. Growers should only buy basil
seed that has been tested for the fusarium wilt fungus. Currently, these
tests involve growing out a large number of seed and looking for disease
symptoms. This does not guarantee that the seed will be free of infection,
but it greatly reduces the risk. If it is not possible to obtain tested
seed, the seed should be soaked in cold water for four hours followed by a
heat treatment of 20 minutes in 133-136 degree F water. Seed germination
rates will probably be reduced by the hot water treatment, so a germination
test should be conducted on a small lot of the treated seed to determine how
much seeding rates need to be adjusted. Also, the hot water treatment causes
a sticky layer to develop on the outer surface of seed making it difficult
to handle. 

Once a field has become infested with the fusarium wilt pathogen, infective
propagules may persist in the soil for 8-12 years. During that time, growers
should avoid growing sweet basil or members of the mint family. Mints will
not exhibit symptoms of the disease but may carry over the inoculum from
year to year. There are currently no products registered to help control
this disease."

Source:  Jeanine M. Davis

Extension Horticultural Specialist

Department of HorticulturalScience

North Carolina Cooperative Extension Service

North Carolina State University  (1997)

 

 

From: mpwg-bounces at lists.plantconservation.org
[mailto:mpwg-bounces at lists.plantconservation.org] On Behalf Of Lucy Pongetti
Sent: Monday, January 14, 2008 8:15 AM
To: mpwg at lists.plantconservation.org
Subject: [MPWG] basil

 

I heard that basil crops around the world are infected with a fungus that
has no cure - what is the real story?

Thanks,

Lucy Pongetti
Grants Coordinator
City of Bonita Springs
9101 Bonita Beach Road
Bonita Springs, FL 34135
239-949-6262
email: lucy.pongetti at cityofbonitasprings.org
"The greatest achievements were at first and for a time dreams. The oak
sleeps in the acorn." James Allen

 

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