Various – Cotton/Melon Aphid (𝘈𝘱𝘩𝘪𝘴 𝘨𝘰𝘴𝘴𝘺𝘱𝘪𝘪) and Green Peach Aphid (𝘔𝘺𝘻𝘶𝘴 𝘱𝘦𝘳𝘴𝘪𝘤𝘢𝘦)

Crops(s)                 Various

Insect(s)                 Cotton/Melon aphid (Aphis gossypii), Green peach aphid (Myzus persicae)

Guidelines:

1. Rotate between registered insecticides that have different modes of action (e.g., Groups 1, 4, 9, 12A (cotton crop only), 23, 28 and 29.
2. Do not apply more than two consecutive applications of insecticides that have the same mode of action within and between seasons or exceed the recommended maximum number of applications in a crop.
3. With post-spray monitoring, do not re-treat a spray failure with a product from the same mode of action group.
4. Do not follow a seed/seedling/soil treatment with a foliar application from the same Group.
5. 1. The Modes of Action (Groups) and registered insecticides for control of cotton/melon aphid and/or green peach aphid are listed below:

   Group*	Chemical sub-group	Active ingredient
   1A	Carbamates	pirimicarb
   1B	Organophosphates	methamidophos
   3A	Pyrethroids Pyrethrins	tau-fluvalinate
   4A	Neonicotinoid	imidacloprid
   4C	Sulfoximines	sulfoxaflor
   8A	Alkyl halides	ethyl formate
   9B	Pyridine azomethine derivatives	pymetrozine
   9D	Pyropenes	afidopyropen
   12A	Diafenthiuron	diafenthiuron
   23	Tetronic and Tetramic acid derivatives	spirotetramat
   28	Diamides	cyantraniliprole
   29	Flonicamid	flonicamid
   36	Pyridazine	dimpropyridaz
   UN	Sulphur	sulphur
   UNF		Beauveria bassiana
   UNM		Parafinnic oil

   *Refer: CropLife Australia Expert Committee on Insecticide Resistance Mode of Action Classification for Insecticides

Notes:

1. There is known cross-resistance between Groups 1A and 1B. Rotate between Group 1 and Group 4, 9B, 9D, 12A, 23, 28 and 29.
2. Consecutive applications of a Group 4A and Group 4C product may be made only if no other effective option is available – either because:
   1. no other group is registered in the crop; or
   2. the target pest is resistant to the other Groups.
3. Seek advice from the manufacturers and/or government advisory services to determine local resistance levels for particular mode of action Groups.
4. Do not exceed the maximum number of applications permitted on the insecticide label.
5. When using insecticides/miticides to control other pests, consider the chemical group in relation to contributing to resistance development of Cotton/Melon Aphid and Green Peach Aphid.
6. When using insecticides/aphicides to control other pests consider the effect on beneficial insects and the potential to flare aphid populations.
7. For more information about insecticide resistance in the green peach aphid refer to http://cesaraustralia.com/latest-news/all/insecticide-resistance-in-the-green-peach-aphid.
8. For more detail on resistance management of aphids in cotton refer to the current Cotton Pest Management Guide or for more detail on resistance management for Green Peach Aphid in grain refer to https://ipmguidelinesforgrains.com.au/ipm-information/resistance-management-strategies/ or https://grdc.com.au/resources-and-publications/all-publications/factsheets/2015/07/grdc-fs-greenpeachaphid or https://thebeatsheet.com.au/key-pests/aphids

Notes regarding the application of insecticides:

1. To ensure the most effective control of the pest:
   1. Product labels should at all times be carefully read and adhered to;
   2. Full recommended rates of registered insecticides should always be used; and
   3. Ensure good coverage of the target area to maximise contact.