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Location

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Date Posted

Kutztown, PA

The Science indicates that Ca does not move far enough or fast enough into the plant via foliar application since it's a large molecule in most forms. So why are folks providing it by foliar application? Also, I've read folks are spraying the pumpkin skin with it. Is there any evidence that does anything at all or is it more "Hocus Pumpcus"?

3/2/2022 10:45:09 AM

On a cliff in the desert

You can use a 10% solution to spray for powdery mildew.

3/2/2022 11:46:34 AM

Colorado

No positive info on the skin.You get it into the plant through the roots.Amino acids with kelp based compost tea help with active tranport for ca++ uptake.I use it right around the fruit because its not supposed to be very mobile.

3/2/2022 4:44:22 PM

Watlington, UK

Waste of time adding it by foliar. It's translocated from the roots via the transpiration stream.

3/3/2022 4:51:30 AM

Menomonie, WI (mail@gr8pumpkin.net)

For prevention of powdery mildew

3/3/2022 7:31:52 AM

Grittyville, WA

When applied to skin, I believe it will only absorb skin deep. I dont think it will translocate to the interior of the plant or pumpkin. Boron might. Of course, then one must wonder why a calcium chloride spray would help set tomatoes. Maybe when a fruit/blossom small there is significant absorbtion. Hmm. Couldn't hurt I guess.

3/3/2022 4:00:47 PM