The tomato-potato psyllid (Bactericera cockerelli) (TPP) is an important economic pest in the Americas and New Zealand, and was detected in Western Australia in February 2017.
These psyllids affect a number of crops including tomato, potato, capsicum, chilli, eggplant and sweet potato, and feed by sucking the sap of their host plant, which results in poor growth and productivity.
TPP is listed as prohibited matter under the Biosecurity Act 2014. This means that you must report any occurrences of the pest to Biosecurity Queensland by calling 13 25 23 or the Exotic Plant Pest Hotline on 1800 084 881.
Photos or symptoms of psyllids can be sent to: email@example.com
Signs of TPP include:
In potatoes, there may also be purpling of leaves, and small misshapen tubers and aerial tubers. In tomatoes, it can cause small misshapen fruit.
Psyllids have 3 life stages:
|Crops affected||Tomato, potato, capsicum, chilli, eggplant and sweet potato|
TPP can cause ‘psyllid yellows’, which can result in:
It can also result in poor productivity of crops due to the introduction of phytotoxins during feeding, and reduce the quality of produce resulting in misshapen and small fruits or tubers.
TPP can also carry the bacterial pathogen Candidatus Liberibacter solanacearum, which causes the disease ‘zebra chip’ in potatoes. Symptoms of zebra chip include leaf rolling, purpling and discolouration of tubers.
|Spread of pest|
Dispersal can occur by movement of plant material such as seedlings, and by flight of adults to neighbouring hosts. Adults can spread by using wind currents