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Ohio Department of Agriculture Public Domain Literature --Menthol for Tracheal Mites Dept.
of Agriculture
92-19 OHIO DEPARTMENT OF AGRICULTURE
Division of Plant Industry
MENTHOL FOR TRACHEAL MITE CONTROL ACTIVE INGREDIENT: Menthol crystals - food grade with a purity of 98%+.RATES: Treat each 2 story colony with 1 .8 oz or 50 grams of menthol. METHODS OF TREATMENT: Prepackaged menthol can be obtained in 50 gr. packets making preparation and handling easier. Bulk menthol also should be placed in 50 gr. packages. A possible package would be to place the menthol in aluminum foil and fold the foil over a wire mesh screen, forming a screened package. A menthol/grease mix can be prepared by using equal weights of menthol and vegetable shortening. Heat the shortening to 65°c or 149°F and add the menthol. Then immerse corregated cardboard (size: 12"x12") until saturated. Remove and let cool, storing in an airtight container, in a cool place. Put one sheet on the bottom board of each colony. APPLICATION: When there is no surplus honey flow, during daytime temperatures of at least 60°F. Place menthol packet on the top bars or on the bottom board. If the temperature is below 80°F, place on the top bars and if above 80°F place on the bottom board. The menthol should remain in the hive for about 2 weeks. It can be reapplied as long as there is not a honey flow. Remove all menthol from the colonies at least one month before the surplus honey flow to prevent contamination of marketable honey. SAFETY AND CAUTION: Menthol should be handled in a well ventilated area and avoid any eye contact. If there is skin contact, wash with soap and water. If ingested induce vomiting and consult a physician.
Prepared by: Gordon Rudloff State Apiarist Ohio Department of Agriculture
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