Thanks Sylvain.
... "12 oz (355 g not sure) of water"...
I don't use metric much, but I believe 1 1/2 cups is not measured in grams. 1 1/2 cps is 350 ML .
It's got to be more than 0.355g of GA - label says 1.25cc (0.4 - 0.5 g). I don't know why it isn't more precise on g measure.
Does this make sense to anyone else?
Hey, thanks for "the coke line method" of measuring LOL.

water weighs 1 gram for each 1 ml. So 10 mls of water weighs 10g.

I found this product, Pro-Gibb
http://rosecare1.stores.yahoo.net/progibb4.html
which is very expensive!

here is the MDSD with info on how to use it on citrus, which may be helpful (or scary)
http://www.hort.wisc.edu/cran/PestWeb/Cranberry%20Labels/progibb%204.pdf

Hi Patty,
If your instructions say add the contents to 12 oz to make 1000 ppm, I would add the contents to 12 oz of alcohol and keep that as your stock solution. The GA should keep better in alcohol than in water and it is more soluble in alcohol.

Then make a 1:100 dilution when you are ready to use it. 10 ml will make a 1000 ml of 10 ppm solution. In non metric measures that would be about 2 tsp per quart.

Thanks for explaining. I'm good at math but I'm a metric dummy.
I read about mixing with alcohol mostly because GA dilutes better than in water.

Thanks again Skeet. I was gone for 10 days & there were blossoms ready to open, so I missed them. Hopefully those fruits will hang on.
I mixed 1/2 the powder into 6 oz of alcohol & it is in fridge. I mixed 1 tsp of that in 3/4 cp water (everything in half) & sprayed several new open blossoms with more to open in next few days. Saving the other half for next year.
Anyone know what the shelf life would be?

Patty, you might have made your solution a little strong (about 25 ppm)-- half the powder in 6 oz would still be 1000 ppm, but 1 tsp (5 ml) in 3/4 Cup would be the same as 5 tsp in a quart.

The alcohol solution should keep fairly well in the fridge.

SussanB, Pro Gib is the gibberellic acid formulation I have long used on citrus, it works very well. The application rate for Pro Gib is 1 gram per gallon. Spray citrus when the tree is in full bloom. Gibberellic acid "pollinates" citrus blooms so well that the tree sets an over abundance of fruit, which causes the fruit to be smaller than normal. Therefore, if large fruit is desired, some thinning should be carried out. We also use Pro Gib on various field crops on our farm. - Millet

Ah, that makes more sense, Millet.

Skeeter, so glad you have the math skills!

Patty, we are 95 percent winter wheat, however, we also raise Gamble's Oak, Statice, Aspen, and Rocky Mountain Cedar. The wheat is sold to the grain elevator, and the other products are cut, dyed, preserved and sold to the floral and potpourri industry, throughout the USA. - Millet

My word!
How do you ever find time to attend to your citrus and grapes, read, and post here? Do you ever sleep?

Susan

Patty, --yes it was the 3/4 cup part that I read in the original post that would have been wrong, but if you used 2 cups that was correct.

As for other things that GA is used for--2 that I am familiar with are strawberries and camelias. Those huge strawberries we get nowdays do not grow that way naturally--they are "Gibbed". I have a neighbor that is a camelia fanatic and competes in the local garden club for the biggest and best camelias in shows--to do that they use GA and a lot of pruning.

thanks every body for the useful information.
i just recieved my GA3 order from this web site
the table explains the dosage
http://www.super-grow.biz/GA3Powder20.jsp
my question is when to apply and at what stage of flowering?
does it help new growth if applied when there is no blooms?
how many times a year is applied?
thanks