Amitraz or coumaphos efficacy tests in Guatemala for control of Varroa jacobsoni in honey bees
Baxter, J.R, Ibarra, J, Wilson, W.T, Arther, R.G, Kellerby, J.D, Stewart, J
Published in The Southwestern entomologist (01.12.1999)
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Published in The Southwestern entomologist (01.12.1999)
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Mechanical manure harvesting from feedlots
Kellerby J.D, Smith J.L
Published in Transactions of the ASAE [American Society of Agricultural Engineers] (1977)
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Published in Transactions of the ASAE [American Society of Agricultural Engineers] (1977)
Journal Article