Com­bat­ing spray drift with new re­stric­tions for 2,4-D her­bi­cides

The Western Star - - RURALWEEKLY - Madeleine Stuch­bery news@ru­ral­

NEW mea­sures and re­stric­tions for her­bi­cides con­tain­ing 2,4-D have been im­ple­mented by the Aus­tralian Pes­ti­cides and Vet­eri­nary Medicines Author­ity.

In­ci­dents of spray drift dam­age to crops such as cot­ton and grapes have been cited as the cat­a­lyst for the changes, which came into ef­fect in Oc­to­ber.

New in­struc­tions in­clude not spray­ing in in­ver­sion con­di­tions and ad­di­tional in­for­ma­tion on recog­nis­ing in­ver­sion con­di­tions, down­wind manda­tory no-spray zones for aquatic and ter­res­trial off-tar­get veg­e­ta­tion (in­clud­ing sen­si­tive crops, gar­dens, land­scap­ing veg­e­ta­tion, pro­tected na­tive veg­e­ta­tion or pro­tected an­i­mal habi­tat), use of noz­zles pro­duc­ing spray droplets no smaller than Very Coarse, manda­tory record keep­ing re­quire­ments, and ad­vi­sory state­ments re­gard­ing spray ap­pli­ca­tion over sum­mer (Oc­to­ber to April).

A spokesman for the Aus­tralian Pes­ti­cides and Vet­eri­nary Medicines Author­ity said in­ci­dents of spray drift dam­age have been re­ported in the last two sum­mer spray sea­sons, with the APVMA work­ing with state and ter­ri­tory gov­ern­ment and in­dus­try groups to tighten re­stric­tions.

“The Aus­tralian Pes­ti­cides and Vet­eri­nary Medicines Author­ity is re­spon­si­ble for reg­u­lat­ing agvet chem­i­cals up to, and in­clud­ing, the point of re­tail sale,” the spokesman said.

“Be­yond this point, the state and ter­ri­tory gov­ern­ments are re­spon­si­ble, in­clud­ing con­trol­ling the use of these chem­i­cals.”

Changes in­clude al­ter­ations to record keep­ing and ap­pli­ca­tion tech­nique.

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