Tomato growers are encouraged to monitor their crops following the detection of tomato potato psyllid in a glasshouse at a tomato production facility on the Bellarine Peninsula. Tomato potato psyllid (TPP; Bactericera cockerelli) is a small insect that feeds on hosts such as tomato, potato, eggplant, chili, and capsicum.
A glasshouse tomato producer reported an insect infestation to Agriculture Victoria.
Surveillance has since found TPP at further locations within 1.5 km of the glasshouse. TPP can spread a serious plant disease known as 'zebra chip' in potatoes when it is linked with the Candidatus Liberibacter solanacearum (CLso) bacterium. CLso has not been detected.
Victoria's Chief Plant Health Officer Dr Rosa Crnov said the early detection of TPP would enable Victorian producers and gardeners to step up their vigilant monitoring and ensure crops are safeguarded from exotic biosecurity threats.
"To support the surveillance activities, tomato producers are encouraged to monitor their crops and to contact Agriculture Victoria if they suspect that TPP might be present," Dr Crnov said. Commercial and residential growers of host crops are advised to regularly check their crops for signs of TPP, which can be found on the underside of leaves.
When present in a crop, noticeable signs of TPP include:
- Insects jumping from the foliage when disturbed
- Severe wilting of plants caused by high numbers of psyllids feeding
- Yellowing of leaf margins and upward curling of the leaves
- White sugar-like granules coat the plant leaves and stems, and can lead to the development of sooty mold
- Ants present on the plant, collecting the sugar-like granules
- Stem death symptoms similar to other potato and tomato disorders.
- An investigation is underway to understand where the incursion may have originated and how far TPP has spread from the site.
For more information:
Agriculture Victoria
Tel: +61 1800 226 226
Email: [email protected]
www.agriculture.vic.gov.au