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WA Industry Update, Tomato Potato Psyllid (TPP) complex

1 December 2017

Quarantine Area - approved treatments for movement of TPP host plants

A Quarantine Area Notice is in place to help minimise the spread of the Tomato potato psyllid (TPP) in Western Australia.
Commercial growers should be familiar with the Notice, including Clause 4, which sets out the spray regime required for movement of commercial host plants, such as seedlings or nursery stock, from the Quarantine Area to other areas in Western Australia.


Alternative approved treatment options

Clause 5 of the Quarantine Area Notice allows movement of host plants from the Quarantine Area if prepared in an approved manner.

The alternative approved manners for preparation for movement published on the department's website, details the preparation required to allow commercial growers to move host plants by applying abamectin or bifenthrin to spirotetramat within 7 days prior to movement, in addition to spraying plans with methomyl no more than 36 hours prior to movement.

These treatment guidelines maintain a satisfactory level of effectiveness against TPP while improving the practicality of spray application and dispatch timing for the nursery and garden industry.

QAN treatment guidelines apply to the movement of host plants within Western Australia only. Records for treatment and the details of transporters and consignees must be kept. 


What areas are included in the Quarantine Area?

The Quarantine Area includes the Perth metropolitan area and the local government areas listed below:

Perth Metropolitan Area, Augusta-Margaret River, Beverley, Boddington, Boyup Brook, Bridgetown-Greenbushes, Brookton, Bunbury, Busselton, Capel, Carnamah, Chittering, Collie, Coorow, Cranbrook, Cuballing, Dandaragan, Dardanup, Denmark, Donnybrook-Balingup, Gingin, Harvey, Kojonup, Mandurah, Manjimup, Moora, Murray, Nannup, Narrogin, Northam, Pingelly, Plantagenet, Toodyay, Victoria Plains, Wagin, Wandering, Waroona, West Arthur, Wickepin, Williams, Woodanilling, York.


TPP chemical control options

Growers are reminded there are a number of pre-harvest control options available to assist with the management of TPP.

Permits from the Australian Pesticides and Veterinary Medicines Authority (APVMA) have been made available for use in host crops and nursery stock.

Download permits at

A summary of available permits according to the crop type and active ingredient is available online.

Growers have a responsibility to ensure chemicals are used according to the label/permit instructions.


Check and report

Commercial growers are encouraged to check for, and report sightings of unusual insects or damage to their plants through the My Pest Guide reported app or contacting the department on 08 9368 3080.

Good farm biosecurity procedures should be in place to prevent the entry, establishment and spread of pests and diseases. More information on biosecurity is available at the Farm Biosecurity website www.farmbiosecurity.com.au


Contacts for growers

Phone: 08 9481 0834
Potato Growers Association of WA
Phone: (08) 9481 0834
Nursery and Garden Industry Western Australia
Matthew Lunn, Chief Executive Officer
Phone: 0410 714 207
Department of Primary Industries and Regional Development
Rohan Prince, Industry Liaison
Phone: 0429 680 069

Email: rohan.prince@dpird.wa.gov.au

Further information and general enquiries
Pest and Disease Information Service
Phone: 08 9368 3080