Mike Maas said:There are chemical treatments that reduce the seeds, but it's expensive, needs to be applied by spray annually, and has variable efficacy at best.
It should be mentioned that the seed crop varies from year to year. You may just be seeing an unusually large crop because of the drought we've been having, or some other stress. Treeseer's idea to mulch may be your best way to reduce the seed crop. If you go a week or so without rain, let the sprinkler run under the dripline of the tree for a half hour or so.
Otherwise, your money might be better spent putting gutter helmets on and buying one of the new high volume backpack blowers, to facilitate easy clean-up.
alanarbor said:There are some trunk injectable products that can help reduce seed production as well, but they may be a bit pricey, and have mixed results.
http://www.arborsystems.com/chemicals_pinscher.htmlybai said:Do you have detailed information about "trunk injectable products"?
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