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Old 09-07-2010, 01:34 PM posted to rec.gardens
Boron Elgar Boron Elgar is offline
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First recorded activity by GardenBanter: Jan 2007
Posts: 139
Default More bad tomato news

On Fri, 09 Jul 2010 07:30:18 -0600, wrote:

First you need to find out what you REALLY have. Then read everything you can on the
web
...a true wilt seldom occurs in tomato, at least not until late in the season
....Tomatoes and potatoes must have at least a day of saturated soil before infection
occurs.

Control
1. resistant varieties
2. raised beds that drain quickly
3. new soil over plastic that blocks the fungus
4. even moisture and dont over fertilize.


You have some interesting information, but there are circumstances in
which wilt DOES come early and its attack is swift and devastating. We
were hit with it in the NE last season.

You can read up on it here, or do some more searching of your own.

http://www.nytimes.com/2009/08/09/opinion/09barber.html

The article says, in part:

The latest trouble is the explosion of late blight, a plant disease
that attacks potatoes and tomatoes. Late blight appears innocent
enough at first — a few brown spots here, some lesions there — but it
spreads fast. Although the fungus isn’t harmful to humans, it has
devastating effects on tomatoes and potatoes grown outdoors. Plants
that appear relatively healthy one day, with abundant fruit and
vibrant stems, can turn toxic within a few days. (See the Irish potato
famine, caused by a strain of the fungus.)

Most farmers in the Northeast, accustomed to variable conditions, have
come to expect it in some form or another. Like a sunburn or a
mosquito bite, you’ll probably be hit by late blight sooner or later,
and while there are steps farmers can take to minimize its damage and
even avoid it completely, the disease is almost always present, if not
active.

But this year is turning out to be different — quite different,
according to farmers and plant scientists. For one thing, the disease
appeared much earlier than usual. Late blight usually comes, well,
late in the growing season, as fungal spores spread from plant to
plant. So its early arrival caught just about everyone off guard.

And then there’s the perniciousness of the 2009 blight. The pace of
the disease (it covered the Northeast in just a few days) and its
strength (topical copper sprays, a convenient organic preventive, have
been much less effective than in past years) have shocked even
hardened Hudson Valley farmers.