Spore trap for sampling pastures. A—Gas meter to measure the volume of air taken into the impactor (F). B—Track for adjusting height of impactor. C Suction pump driven off wheels by chain (I). D—Lawn mower handle. E—Air exhaust tube. F—Impactor, in which is a sticky microscope slide so placed that spores sucked in through a narrow slit on the front of the impactor are caught in a narrow band on the slide. (The spores are counted afterward with a microscope.) G—Skid to keep impactor at a steady height above ground. H— Beater drive chain. I — Pump drive chain. JWheel. — Beater, driven off the wheels, to disturb spores in the pasture.
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Bibliographic details
New Zealand Journal of Agriculture, Volume 99, Issue 4, 15 October 1959, Page 310
Word Count
110Spore trap for sampling pastures. A—Gas meter to measure the volume of air taken into the impactor (F). B—Track for adjusting height of impactor. C Suction pump driven off wheels by chain (I). D—Lawn mower handle. E—Air exhaust tube. F—Impactor, in which is a sticky microscope slide so placed that spores sucked in through a narrow slit on the front of the impactor are caught in a narrow band on the slide. (The spores are counted afterward with a microscope.) G—Skid to keep impactor at a steady height above ground. H—Beater drive chain. I—Pump drive chain. JWheel. —Beater, driven off the wheels, to disturb spores in the pasture. New Zealand Journal of Agriculture, Volume 99, Issue 4, 15 October 1959, Page 310
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