I recently had the opportunity to see and treat a truly disastrous mite
infestation. Each line is a record of the mite drops each day after an
oxalic acid treatment.
August 29: 858, 254, 254,254, 237, 237, 237, 237, 334, 296, 188, 238
Sept 10 2805, 753, 388, 191, 215, 198, 205
Sept 17 2428, 1077, 467, 325, 112, 144, 166
Sept 24 1121, 871, 347, 270, 174,
Sept 29 691, 266, 62, 16, 21
Oct 4 9, 29, 27, 9, 4, 4, 4, 4,
It is hard to draw any conclusions from this, although it appears that
vaporizing every 5th day is more effective than every 7th day. It also
seems that the vapour kills the mites almost immediately and loses its
effect very quickly.
Best regards,
Donald Aitken
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