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Re: [compost_tea] spraying during bloom-grapes



Bill,
 
Most commercial varieties of grapes have self pollinating "perfect flowers" and bees are not required for pollination.  There are grapes such as muskadine that have separate male and female flowers and bees do play a role in their pollenation. Self-pollination and wind cross-pollination are generally thought to be the more efficient pathways for grape pollination. One thing I've noticed is the pollen bearing anthers tend to be on the fragile side and if they are knocked off the flower before they release their pollen, fruit set can be reduced.  Spray programs are not generally conducted during the pollination time so as to not disturb the fruit set.  I would also not run overhead sprinklers during grape bloom time.  Turning away heavy rains and hail, on the other hand, is a function of those nice looking grape leaves.  :)
 
--Thomas Giannou
http://www.tandjenterprises.com
 
----- Original Message -----
Sent: Sunday, June 08, 2003 11:24 AM
Subject: Re: [compost_tea] spraying during bloom-grapes

Bees pollinate grapes? I generally stay out of the field during bloom as fruitset is affected.
Bill

soilfoodweb@aol.com wrote:

 You don't want to interfere with the bees pollinating the blossoms.  Wet blooms can deter the bees, so spray before blossom, and after.  Of course, if in the middle of a severer disease season, better to lose a few blossoms than to get hit with severe disease.

Elaine
President, Soil Foodweb Inc.


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