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346ss ... I have never gotten a bag with flies, that is not normal. But the good news is, it really will not hurt anything - provided they are just ole run of the mill house flies.
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If they are gnats, put the bag into a large black trash bag, tie it closed & sit it in the sun for a couple of days. It will get so hot, it will kill them all.
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Death to gnats, they damage roots and annoy me in general.
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Keep it Real...Organic...
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