Dimethoate Chemical Review - 5. Assessment

Review Process Workflow

Click on one of these tabs for more information about that phase in the review process. For more information about how each phase is conducted, please read the reconsideration process.

Work Plan Information

Nomination Reason: Occupational health and safety, Residues, Toxicity, Trade
Related Chemical Dimethoate
Reconsideration Assessment Period N/A
Scope Toxicology, occupational health and safety, trade and residues
Timeframe 2 July 2004
Work plan release date 1 July 2015
Work plan revision date

Review process phases

Phase Phase status Link
Phase status: 
In progress


On 6 October 2011 the APVMA suspended all products containing dimethoate and issued new instructions that no longer allowed the use of dimethoate on a number of food crops due to potential dietary risks. The suspension and associated permits were extended, first to 5 October 2013, then to 5 October 2014. The suspension prohibits:

  • use of dimethoate on certain horticultural crops
  • use on all food-producing plants in the home garden
  • supply and possession of dimethoate products unless they carry the new instructions for use.

The suspension follows the release of the August 2011 Dimethoate residues and dietary risk assessment report, which determined that its use on many crops could exceed the recommended public health standard (the acute reference dose).

Certain dimethoate products have had the suspension of their registrations revoked to allow the approval of new labels that have instructions consistent with the suspension instructions. Previous labels of these products (those approved before 6 October 2011) must still be used only according to the current suspension instructions included in PER13155 (PDF) or PER13156 (PDF) or according to any other permits issued by the APVMA.

On 7 March 2013, the exposure and risk assessment component, which included the occupational health and safety assessment component of the human health risk assessment of dimethoate was completed and published. This assessment, including the occupational health and safety risks associated with the use of dimethoate, was prepared by the Office of Chemical Safety.

The release of this assessment followed the publication of the toxicology component in January 2011 and the Dimethoate residues and dietary risk assessment report in August 2011.

The APVMA plans to publish Preliminary Review Findings for dimethoate and then seek comments and information that may be used to refine the toxicology, occupational health and safety and residues assessments prior to finalising the review. This may include any available studies, as well as descriptions of work practices such as application rates per hectare and hectares treated per day. We will also consider any proposals to amend label directions to address any identified concerns.

Suspended and allowed uses following 2011 Dietary Risk Assessment of dimethoate

Note: Individual crops are listed where possible, however crop groups are also listed where they appear on the label.

Suspended dimethoate uses

  • Acerola
  • Ambarella
  • Apples
  • Apricots (except uses at flowering only)
  • Babacos
  • Bell fruit (water apple)
  • Berry fruit (except preharvest uses on blackberries, blueberries, bilberries and raspberries)
  • Blueberries post harvest
  • Boysenberries
  • Brazil cherry (grumichama)
  • Brussels sprouts
  • Bulb vegetables (except bulb onion)
  • Cabbage (except specified drumhead varieties)
  • Cape gooseberry
  • Capsicum post harvest
  • Carambola
  • Cashew apple
  • Cherries
  • Cole crops (other than broccoli, drumhead cabbages and cauliflower)
  • Cucumber
  • Cucurbits (except melons, watermelons and zucchini)
  • Dates
  • Egg plants
  • Figs
  • Fruiting vegetables, other (except capsicum, tomatoes for processing and sweet corn)
  • Gourd – bitter
  • Grapes all uses after commencement of flowering
  • Grumichama (Brazil cherry)
  • Guava (edible peel varieties)
  • Hog plum
  • Home garden use on any food producing plant
  • Kiwifruit (Chinese gooseberry)(edible peel varieties)
  • Kohlrabi
  • Kumquat
  • Leafy vegetables
  • Lettuce
  • Loganberries
  • Loofa – smooth
  • Loquats
  • Malay apple
  • Miracle fruit
  • Mulberries
  • Nashi pear
  • Nectarines (except uses at flowering only)
  • Olives
  • Peaches (except uses at flowering only)
  • Pears
  • Pepinos
  • Persimmon (edible peel varieties)
  • Plums (except uses at flowering only)
  • Plumcot (except uses at flowering only)
  • Pome fruit
  • Quince
  • Root and tuber vegetables (except beetroot, carrot, parsnips, potatoes and sweet potatoes, radish and turnip)
  • Rose apple
  • Silverbeet
  • Stalk and stem vegetables except asparagus, celery, globe artichoke and rhubarb)
  • Stone fruit (except uses at flowering only)
  • Strawberries (except strawberry runners – vegetative planting material only)
  • Tropical and subtropical fruit (edible peel)+

Dimethoate uses - continue to be allowed

Please note: some uses in this “continue to be allowed” list may require more data for use to be supported long term. More information is available in the Dimethoate Residues and Dietary Risk Assessment Report 2011 (see pages 131-134).

  • Artichoke, globe (pre harvest use with 14 day WHP)
  • Asparagus
  • Abiu, pre harvest
  • Abiu, post harvest
  • Adzuki bean
  • Avocado, pre harvest
  • Avocado, post harvest
  • Banana, pre harvest
  • Banana, post harvest
  • Banana, passionfruit
  • Beans
  • Beetroot (pre harvest use with 14 day WHP)
  • Bilberries (see blueberries)
  • Blackberries (pre harvest uses)
  • Blueberries, bilberries and other vaccinium berries (pre harvest modified use pattern)
  • Borlotti beans
  • Broccoli (preharvest use with a 21 day WHP)
  • Cabbage (specified drumhead varieties only)
  • Cactus fruit
  • Caimito/star apple
  • Canola
  • Capsicum, pre harvest
  • Carrots (pre harvest use with 14 day WHP)
  • Casimiroas, pre harvest
  • Casimiroas, post harvest
  • Cauliflower (pre harvest use with 21 day WHP)
  • Celery (pre harvest use with 21 day WHP)
  • Cereals
  • Cherimoya, pre harvest
  • Cherimoya, post harvest
  • Cherries (uses at flowering only)
  • Chickpeas
  • Chilli peppers
  • Citrus, pre harvest
  • Citrus, post harvest
  • Clover
  • Cotton
  • Cowpea
  • Custard apple, pre harvest
  • Custard apple, post harvest
  • Durian, pre harvest
  • Durian, post harvest
  • Feijoa
  • Globe artichoke (see Artichoke, globe) (pre harvest use with 14 day WHP)
  • Grain legumes
  • Granadillas, pre harvest
  • Granadillas, post harvest
  • Grapes (pre flowering uses only)
  • Guava (inedible peel varieties)
  • Kiwifruit (Chinese gooseberry) (inedible peel varieties)
  • Legume vegetables
  • Lentils
  • Leucaena
  • Linseed
  • Litchi
  • Lucerne
  • Maize
  • Mandarins
  • Mango
  • Mangosteen, pre harvest
  • Mangosteen, post harvest
  • Medics
  • Melons (and watermelon)
  • Mung bean
  • Navy bean
  • Onions
  • Oilseeds
  • Papaya (paw paw), pre harvest
  • Papaya (paw paw), post harvest
  • Parsnips (pre harvest use with 14 day WHP)
  • Passion fruit, pre harvest
  • Passion fruit, post harvest
  • Pastures, pasture seed and forage crops (inc clover, medics, cereals, Lucerne, legumes for animal feeds)
  • Peanuts
  • Peas
  • Persimmon (inedible peel varieties)
  • Pigeon pea
  • Pineapple
  • Pomegranate
  • Potato and sweet potato, (pre harvest use with a 14 day WHP)
  • Prickly pear
  • Pulses
  • Radish, (pre harvest use with 14 day WHP)
  • Rambutan, pre harvest
  • Rambutan, post harvest
  • Raspberries (pre harvest uses)
  • Rhubarb
  • Rollinia
  • Santols, pre harvest
  • Santols, post harvest
  • Sapodillas (chikus), pre harvest
  • Sapodillas (chikus), post harvest
  • Sesame
  • Sorghum
  • Soursop
  • Soybean
  • Stonefruit (use at flowering only)
  • Strawberry runners – vegetative planting material only (DO NOT use on fruiting strawberries)
  • Sunflowers
  • Sweet corn
  • Sweet potatoes, (pre harvest use with 14 day WHP)
  • Sweetsop/sugar apple
  • Tamarillo
  • Tomatoes, fresh, field grown, (preharvest DO NOT use after fruit set)
  • Tomatoes (processing), (pre harvest with 21 day WHP)
  • Tropical and subtropical fruit (inedible peel), post harvest
  • Turnip (preharvest with 14 day WHP)
  • Vetch
  • Watermelons
  • Wax jambus, pre harvest
  • Wax jambus, post harvest
  • Zucchini (pre harvest uses)


Exposure and risk assessment including occupational health and safety assessment of dimethoate
- application/pdf PDF (1.05 MB) | application/msword DOC (1.19 MB)
Dimethoate residues and dietary risk assessment report: Part 1 - Main report including conclusions and recommendations
- application/pdf PDF (2.04 MB) | application/msword DOC (1.83 MB)
Dimethoate residues and dietary risk assessment report: Part 2 - Appendix 1—National estimate of short term intake and national estimate of dietary intake data
- application/vnd.ms-excel XLS (141.5 KB)
Dimethoate residues and dietary risk assessment report: Part 3 - Appendixes 2 to 6—Results of pesticide monitoring programs; Metabolism data; Processing studies; Storage stability and Analytical methods)
- application/pdf PDF (1.04 MB) | application/msword DOC (1018 KB)
Dimethoate residues and dietary risk assessment report: Part 4 - Appendix 7—Residues data supplied by registrant
- application/pdf PDF (2.52 MB) | application/msword DOC (1.97 MB)
Dimethoate residues and dietary risk assessment report: Part 5 - Appendix 8—Residues data supplied by Horticulture Australia
- application/pdf PDF (1.3 MB) | application/msword DOC (1 MB)
Human health risk assessment of dimethoate—toxicology component
- application/pdf PDF (1.05 MB) | application/msword DOC (1.19 MB)
- application/pdf PDF (269.6 KB)
- application/pdf PDF (87.88 KB)


Chemical Review
Phone: +61 2 6210 4749
Fax: +61 2 6210 4776
Email: chemicalreview@apvma.gov.au