Inhaltsangabe
Excerpt from A Study of the Bulb Mite
Formalin, 1 part to parts water, and 1 part to parts water - cold.
Nicotine sulfate, 1 part to 400 parts water, plus soap, 2 pounds to 50 gallons - cold. Mercuric chloride, 1 part to parts water, and 1 part to parts water - cold. Naphthalene fumigation in paper bags at temperatures prevailing in common storage.
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