"David Ross" wrote in message
...
madgardener wrote:

"THURSTON ACKERMAN" wrote in
message ...

Night-time temperatures below 50F will also cause a failure of
tomato flowers to form fruit. This failure can be mitigated with
certain plant hormone sprays.

The failure caused by daytime temperatures being too high cannot be
similarly corrected. The only mitigation for high temperatures
might be shade cloth and misting, to keep the temperatures from
getting too high.

David E. Ross

Misting increases blight problems IMHO and shade cloth is a bit pricey for
many home gardeners. For high temperatures I tried a variety called 'Sun
Leaper' last year that produced a huge quantity of large, smooth tomatoes
that were wonderful for canning when temperatures were really warm. They
didn't have as good as flavor as many others, but they produced after the
others quit and certainly tasted better than the pale, plastic blobs one
finds in stores.

John