Pesticide regulatory changes

Pesticide regulatory changes

Monday, July 8, 2013

Organophosphate and carbamates in pasture pest control products: conclusions of Environmental Protection Authority review

Several insecticides have been banned by the EPA on the ground of their high toxicity to human health or the environment, and the EPA will phase out others used for plant and crop protection.

The EPA has withdrawn approval for insecticides or formulations containing 10 of the active ingredients approved until now.  Seven others, including diazinon, are to be phased out over a period of up to 15 years.  Controls on the use of the other substances (except for fenitothion and phorate, for which the current controls won't be changed) are to be tightened in two years (start date 1 July 2015).  If you, or your staff, apply pesticide to pasture, make sure you check out the new controls.

The EPA now intends to review the use of organophosphates and carbamates in veterinary products such as sheep dips.

A summary table showing the outcomes for the pesticides that drystock farmers typically use is shown below. 

Pesticide

Target pest

Result

Chlorpyrifos methyl

Argentine stem weevil, Grass grub, Clover root weevil, Sitona weevil, Porina species, Springtail, Aphids

Retained with more controls

Diazinon

Grass grub, Porina species, Springtail, Aphids

Retained with more controls for 15 years only (to 1 July 2028)

Dichlorvos

Aphids

Retained with more controls

Dimethoate

Springtail, Aphids

Retained with more controls

Fenamiphos

Nematodes (worms)

Retained with more controls for 10 years only (to 1 July 2023)

Fenitrothion

Sitona weevil, Porina species, Springtail, Aphids

Retained under existing controls for 3 years only (to 1 July 2016)

Maldison (malathion)

White butterfly, Black field cricket, Aphids

Retained with more controls –

except approval of dustable powder containing combination of maldison, carbaryl and rotenone declined

Methamidophos

Aphids

Retained with more controls for 10 years only (to 1 July 2023)

Oxamyl

Argentine stem weevil

Retained with more controls

Phorate

Argentine stem weevil, Grass grub, Springtail, Aphids

Retained under existing controls for 3 years only (to 1 July 2016)

Pirimicarb

Aphids

Retained with more controls

Terbufos

Argentine stem weevil, Grass grub, Springtail, Aphids

Retained with more controls for 10 years only (to 1 July 2023)

Pirimiphos-methyl

White butterfly

Retained with more controls