I am pretty sure a gardener in Fairfield also may have it--based on his
descriptions. His plants came from Connecticut and NJ.
Best,
Wendy Sue
*************************************************
Wendy Sue Harper, Ph.D.
Vegetable and Fruit Advisor
Providing Technical Assistance for Farmers, Apprentices, and Gardeners
Northeast Organic Farming Association of Vermont
PO Box 697
Richmond, VT 05477
(802)434-4122 phone
(802)434-4154 fax
[log in to unmask]
*************************************************
> Newfane (southern VT) but also sounds like Jake has it and Pooh Sprague
> across the river in Plainfield NH. several gardeners in Bethel area and
> other
> central VT locations (Verbally confirmed only but sure sounds like it)
>
> Mimi Arnstein wrote:
>> Where is it being reported in VT?
>>
>>
>> Mimi Arnstein
>> Farmer
>> Wellspring Farm
>> Marshfield, VT
>> http://www.wellspringcsa.com
>>
>>
>> -----Original Message-----
>> From: Vermont Vegetable and Berry Growers
>> [mailto:[log in to unmask]] On Behalf Of Vern Grubinger
>> Sent: Wednesday, July 15, 2009 11:51 AM
>> To: [log in to unmask]
>> Subject: late blight red alert
>>
>> Late blight is now confirmed at multiple locations in Vermont as well as
>> in every other northeast state. It appears to be spreading rapidly. Hot
>> dry weather may help slow it but cool mornings mean dew on the plants
>> which is not good. Many homeowners are now reporting symptoms of the
>> disease as well. Here are condensed recommendations, adapted from UMass
>> Extension:
>>
>> Fields with significant disease should be burned down with herbicide or
>> plowed under ASAP. Each infected field is producing spores that will
>> move to other farms in the area. Fields showing little or no symptoms
>> should be protected as follows with fungicides, which are the only
>> practical tool for managing late blight this year. Destruction of all
>> infected plant material will help manage the disease for next year since
>> it needs plant tissue to overwinter. Be especially vigilant about
>> digging all infected tubers and destroying, or burying deeply.
>>
>> Fungicides - Conventional.
>> Protectant sprays work well, with chlorothalonil (ie. Bravo or
>> comparable material) continuing to provide excellent control. However if
>> you are late in getting either a chlorothalonil, metiram or mancozeb
>> spray on, then the combination of Curzate (cymoxanil, fungicide group
>> 27) mixed with a protectant is helpful to provide some kickback
>> activity. Curzate works well when plants are actively growing and
>> temperatures are cool, conditions that exist now for both potatoes and
>> tomatoes. Previcur Flex has similar activity, and should be mixed with
>> chlorothalonil. The pathogen has developed resistance to some fungicides
>> such as metalaxyl and mefenoxam (Ridomil, Ridomil Gold), so these are no
>> longer effective. If environmental conditions remain conducive for late
>> blight, apply a fungicide from a different mode of action class every
>> 5-7 days such as Ranman, Forum, Tanos, Gavel, Reason (each mixed with a
>> protectant), Revus Top,or a phosphorous acid fungicide (ProPhyt,
>> Fosphite, Phostrol).
>>
>> Fungicides - Organic.
>> There are some OMRI (Organic Material Review Institute) approved
>> products that list late blight as a target disease. The information
>> available usually indicates that they are not as efficacious as
>> "conventional" materials, but if good coverage of crop foliage is
>> maintained they offer some hope for protecting an uninfected crop. The
>> OMRI approved materials include basic copper sulfate (NuCop 50w and
>> Champ WG are OMRI and the biological fungicide Sonata. Use a 5-10 day
>> schedule.
>>
>> here are links to many images of late blight on tomato
>> http://www.hort.cornell.edu/department/Facilities/lihrec/vegpath/photos/late
>> blight_tomato.htm
>>
>> and potato
>> http://www.hort.cornell.edu/department/Facilities/lihrec/vegpath/photos/late
>> blight_potato.htm
>>
>> if you have any doubts send plant sample to: Ann Hazelirgg, UVM Plant
>> Diagnostic Clinic, Carrigan Ave., Burlington VT 05405-0082
>>
>
>
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