Australia extends 2,4-D ester suspension
The Australian Pesticides and Veterinary Medicines Authority (APVMA) has extended its suspension of short-chain ester forms of the phenoxy herbicide, 2,4-D, until January 31st 2012. Under the suspension, applications can only be made between May 1st and August 31st, with specified restrictions. Limits were first placed on ethyl, butyl and isobutyl esters of 2,4-D in 2006 because of concerns over spray drift ( Agrow No 506, p 16). The APVMA began a review of the risks posed by 2,4-D spray drift last year ( Agrow No 592, p 24).