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ISS
820 East 20th Street
Cookeville, TN 38501 USA
931 526 1106
Bob@sproutnet.com
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Alfalfa
Seed Rejected
SproutNet.com
ISS
September
10, 2000
ISS
just rejected eight of nine lots of seed it sampled. The reasons depended on the
lot and included fecal contamination, damaged seed and insect infestation.
Several lots were infested with the cyclid wasp, which bores into the center of
alfalfa seed to nest.
This brings up a new issue. Dr Wick has shown that damaged alfalfa seed, in all
likelihood, will escape sanitation. If this is true, what effect do insects have
on contaminating seed or at least making it susceptible to contamination by
damaging the seed coat?
I have attached three photos of the cyclid wasp. I'm sorry they are not of
higher quality. One of them shows some of the damage to a seed. The wasp
completely bored out the center of the seed. They have a bit of contortionist in
them, as they are large enough to be seen by the naked eye, but small enough to
completely climb into an alfalfa seed.
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