Re: Blossom End Rot !!!!!!!!
- To: pumpkins@mallorn.com
- Subject: Re: Blossom End Rot !!!!!!!!
- From: P*@aol.com
- Date: Sat, 6 Feb 1999 23:25:46 EST
In a message dated 2/6/99 1:05:23 PM Eastern Standard Time, res@colfax.com
writes:
<< I have to attend 15 hrs of class each year to keep my spray license. One
of the speakers this year was a Phd in plant Physiology talking about roots
and their importance to the plants. She said that they have determined
blossom rot, in pumpkins and squash, is caused when the plant is made
susceptible to the rot by the inability to take in calcium. It may be a
lack of calcium in the soil, but most of the time it is excess soil
moisture or humidity. If possible elevate the planting sites so there is
drainage. I had the thought that adding calcium to the leaf feeding might
also help. Roger
>>
Roger,
Calcium has severe mobility problems in the fruit. A leaf can show adequate
levels and the end of the fruit(which is the furthest distance from the point
of entry(the stem)) will have a deficiency. Leaves can get calcium by the high
rates of transpiration.......a fruit does not do this. I have always wanted to
do a tissue analysis on two pieces of pumpkin....one at the stem end and one
at the blossom end to compare calcium levels at each end of the fruit. To
confirm the deficiency problems at the blossom end. It is important to keep
calcium and magnesium levels in balance and not go wacky on just the calcium.
pumkinguy
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