The Australian Pesticides and Veterinary Medicines Authority (APVMA) considers the priority of chemicals nominated for reconsideration prior to commencing a new reconsideration. In determining the chemicals to be prioritised for reconsideration, we assess the available information for chemicals previously nominated for reconsideration, chemicals that were nominated for spray drift reviews in 2010, public domain information including overseas regulatory decisions and information received from holders and the public raising concerns around specific chemicals.

The chemicals prioritised for commencing reconsideration are listed in Table 1 and the risk areas for reassessment are identified. The APVMA will commence scoping the full extent of the reconsideration of these chemicals as soon as possible, balancing risk, regulatory impact and workforce capacity. Where risks of these or other chemicals on the nomination list can be minimised through minor changes to instructions for use or through other regulatory mechanisms, action may be taken prior to commencing a full reconsideration.

Commencement of reconsiderations are announced in the APVMA Gazette.

Table 1: Chemical reconsiderations prioritised to be commenced (2024 to 2029)

Chemical Risk areas identified for reassessment
Chlorothalonil Chemistry, environment, health, residues, trade
Chlorpyrifos methyl Environment, health, residues, trade
Dithiocarbamates:
Mancozeb
Metiram
Propineb
Thiram
Zineb
Ziram
Environment, residues, trade
Flupropanate Environment, health, residues, trade
Group 4 – Phenoxy – carboxylate herbicides Spray drift – potential risk to vegetation areas, natural aquatic areas 
Methomyl Environment, residues, trade
Phorate Environment, health, residues, trade

The chemicals which have been previously nominated and remain on the nomination list are identified in Table 2. This list may be added to as new information is received or identified and will be revisited regularly to ensure that the prioritised chemicals are the most relevant.

Table 2: Chemicals nominated for reconsideration

Chemical Risk areas identified for reassessment
Abamectin (agricultural) Environment, residues
Acephate Environment, health, residues
Aluminium phosphide Health
Amitrole Environment, health, residues
Bifenthrin Environment, health
Bromoxynil Residues, trade
Chlorfenapyr Environment, residues
Cyanazine and simazine Environment, health
Cyproconazole Environment
Dicamba Environment
Difenoconazole Environment
Dimethoate Health, residues
Fenbutatin oxide Environment, residues, trade
Flutriafol Environment
Hexazinone Environment
Ipconazole Environment
Levamisole  Efficacy, health, residues, trade
Methyl bromide Health
Myclobutanil Environment
Permethrin Environment, residues
Picloram Environment, residues
Propargite Environment, health, residues, trade
Propiconazole Environment, residues, trade
Pymetrozine Residues
Spray drift (multiple chemicals) See Table 3 for full list of chemicals nominated for targeted spray drift review.
Tebuconazole Environment
Tetraconazole Environment
Triadimefon Environment
Triadimenol Environment
Trichlorfon Environment
Triticonazole Environment

Table 3: Chemicals nominated for targeted spray drift reconsideration

  Chemical Mode of action* Reason for nomination
Herbicides Dicamba Group 4 – benzoates Potential risk to vegetation areas, natural aquatic areas
Aminopyralid Group 4 – pyridine – carboxylate  Potential risk to vegetation areas, natural aquatic areas
note: picloram also bystander areas
Clopyralid
Picloram
Fluroxypyr Group 4 – pyridyloxy – carboxylate Potential risk to vegetation areas, natural aquatic areas
Triclopyr
Quinclorac Group 4 – quinoline
Diclofop – methyl Group 1 Potential risk to vegetation areas, natural aquatic areas 
Fenoxaprop
Fluazifop
Chlorsulfuron Group 2 Potential risk to vegetation areas, natural aquatic areas 
Iodosulfuron
Metsulfuron
Triasulfuron
Tribenuron
Atrazine Group 5 – triazines  Potential risk to vegetation areas, natural aquatic areas, bystander areas
Hexazinone Group 5 – triazinones 
Diuron Group 5 – ureas  Potential risk to vegetation areas, natural aquatic areas
Bromoxynil Group 6  Potential risk to vegetation areas, trade areas, natural aquatic areas
Glyphosate Group 9  Potential risk to vegetation areas, natural aquatic areas 
Glufosinate – ammonium Group 10  Potential risk to vegetation areas, natural aquatic areas, bystander areas
Insecticides Thiodicarb Group 1 Potential risk to pollinator areas, natural aquatic areas, bystander areas
Chlorpyrifos – methyl
Dimethoate
Abamectin Group 6 Potential risk to pollinator areas, natural aquatic areas
Emamectin
Pymetrozine Group 9
Chlorfenapyr Group 13
Fungicides Carbendazim Group 1 Potential risk to bystander areas, natural aquatic areas
Propiconazole Group 3

Mode of action classification scheme

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