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Valencia Spain

Hi all do u find toms pollinate Well at 90f does toothbrush work at 90f
The first blooms I have used tomatone to make them set, But the tomatos produce no seeds cos i think tomatone has giberellic acid in it

Cos the megablooms were good ones I wanted to make sure they set

5/7/2015 3:46:16 PM

Allentown, PA

Hi Westham,

90 F is notably above ideal temperature range for blossom set to occur.
Tomatoes grow best if daytime temperatures range between 70 F / 21 C and 85 F / 29 C. While tomato plants can tolerate more extreme temperatures for short periods, several days or nights with temps outside the ideal range will cause the plant to abort fruit set and focus on survival.

This is the challenge that growers in warmer climates such as yours face.

In the far south of the U.S. most that grow tomatoes grow them during winter when temperatures are notably lower than during the late spring and summer time.

At 90F you will experience blossom drop due to the plants defense mechanism being in place in order for it to survive during very warm periods.

The top three reason why blossom drop occurs are

The most frequent cause of tomato blossom drop is temperature.

High daytime temperatures (above 85 F / 29 C)
High Nighttime Temperatures (above 70 / 21 C)
Low Nighttime Temperatures (below 55 / 13 C)

I hope this helps you.

5/7/2015 5:40:25 PM

On top of Brush Mountain, Pa.

Don't forget lack of viable pollen for whatever reason.

5/7/2015 8:37:46 PM

Valencia Spain

Thanks

5/8/2015 5:13:07 PM