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Menthol for Tracheal Mite Control

92-19
BEEKEEPING INFORMATION
OHIO DEPARTMENT OF AGRICULTURE
Division of Plant Industry – Apiculture
8995 East Main Street
Reynoldsburg, Ohio 43068-3399

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

Permanent link to this article: http://www.ohiostatebeekeepers.org/resources/ohio-fact-sheets/menthol-for-tracheal-mite-control/

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