Scenario 4: Variation to increase application rate in a food producing crop
Objective
An application is made to increase the rate of application for an insecticide product for the control of aphids in wheat. The product is currently used with a non-ionic surfactant. It is proposed that the higher rate of active does not require the addition of a surfactant to be effective.
|
|
Crop |
Insect |
Rate |
Critical use comments |
|---|---|---|---|---|
|
Existing use pattern |
Wheat |
Aphids |
15 g/ha plus a non-ionic surfactant at label rates |
Apply at the first sign of the pest. This product will take 3–4 days to reach full effectiveness. |
|
Proposed use pattern |
Wheat |
Aphids |
30 g/ha |
Apply at the first sign of the pest. This product will take 3–4 days to reach full effectiveness. |
The current withholding period for harvest and grazing is four weeks. The applicant proposes that these withholding periods do not need to change.
Application type
This application is considered under a technical variation (Item 14) as evidence is needed to demonstrate the product will continue to meet the safety (section 5A), efficacy (section 5B) and trade (section 5C) criteria when used at the higher rate.
To support the higher rate of application, the applicant has provided efficacy, crop safety data to show that the product when used proposed directions for use has equivalent efficacy and crop safety to when the product is used with the existing directions. Residues data has also been submitted.
The following table examines each assessment module and provides an explanation of what modular assessments, levels, timeframe and associated fees are likely to apply to this extension. Preliminary Assessment, Finalisation and Limits on Use modules are mandatory for this application.
|
Module |
Timeframe |
Fee |
|---|---|---|
|
Preliminary assessment |
Up to 1 month |
$902 |
|
Chemistry |
No assessment required as the product is currently registered and there are no changes to the product formulation or packaging. |
|
|
Poison scheduling |
No assessment required as the product is currently registered and relevant scheduling is established. |
|
|
Residues 2 |
An assessment is required to consider the potential for residue in wheat grain, straw and forage for the use of the product from the higher rate. Wheat is a major export commodity so Residues 2 is appropriate if a change to the established MRL for wheat grain may be required. A public consultation on the implications to international trade will be required should the MRL need to increase. |
|
|
8 months |
$11 149 |
|
|
Health 5 |
A work health and safety assessment is required for use of the product at the higher rate. |
|
|
4 months |
$4 000 |
|
|
Environment 2 |
An environmental assessment is required for use of the product at the higher rate. |
|
|
7 months |
$7 659 |
|
|
Efficacy and Safety 3 |
An efficacy and safety assessment is required for use of the product at the higher rate. |
|
|
3 months |
$1 160 |
|
|
Non-food Trade |
Not required. |
|
|
Special Data |
The product is not a genetically modified organism so this assessment is not required. |
|
|
Finalisation 1 |
3 months |
$8 110 |
|
Limits on use (data protection) |
N/A |
$460 |
|
Total |
11 months |
$33 440 |