Quote:
Originally Posted by tam91
I decided to give the Mancozeb a try.
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I don't want to be "alarmist", but you may want to do some research before you just go out and buy
something.
I also use Daconil, but I don't ever remember seeing an Article like this regarding the effects it may have.
Toxicity to Humans
Mancozeb is a cholinesterase inhibitor and can therefore have affects to the
nervous system. Symptoms of exposure include fatigue, headache, blurred
vision, and nausea. At high doses exposed persons can have convulsions,
slurred speech, confusion, and slowed heartbeat. In lower doses, mancozeb can
also cause a skin rash if the chemical has contact with the skin. In one study, a
vineyard worker developed a rash on the forearm as well as inflammation of the
eyelids after handling seedlings which had been treated with mancozeb.1
A major toxicological concern with respect to mancozeb and other
dithiocarbamates is its primary metabolite, ethylenethiourea (ETU), shown to
cause thyroid and carcinogenic effects in test animals. Mancozeb is listed as a
chemical known by the State of California to cause cancer in humans. Many
studies dating back to 1980 show that mancozeb can cross the placental barrier
and induce or increase tumor incidence. A recent study shows that mancozeb
and its metabolites are capable of crossing the placental barrier and can produce
DNA damage and initiate tumors in fetal cells.
(from Environmentalcommons.org)
For me, if the problem you are trying to solve is mainly cosmetic and not fatal to the plant, I would just live with it, rather than risking the above. Something to think about..
Raybo
