Effective August 3, the allowance for the use of tetracycline in organic apple and pear production will be extended until Oct. 21, 2014, providing two years for the development of alternatives for fire blight control. Additionally, producers will have the option of using formic acid as a means of controlling varroa and tracheal mites in organic honey bee operations, while processors will have the option of using attapulgite, a nonsynthetic processing aid, for purification of plant and animal oils.
Tetracycline has been allowed in organic crop production since 2002 solely to control fire blight, a bacterial disease affecting large populations of apples and pears. Given the high susceptibility of the crops to the disease, and in light of tetracycline’s proven effectiveness to treat it, the National Organic Standards Board recommended that the substance continue to be allowed for a period. However, the expiration date should encourage the development of options for biological controls and also help cultivate fire blight-resistant apple and pear varieties. http://ow.ly/cIMJz