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