Tomato/Potato Psyllid

A new biocontrol agent, Tamarixia, has been released to combat Tomato/Potato Psyllid.

Psyllids are very small insects of about 3mm in length, which suck sap from their favourite host plants, potatoes and tomatoes. They transfer a bacterial disease called Liberibacter, which shows in infected plants as yellowing or distorted leaves and can cause plant death. Potatoes harvested from diseased plants will have a symptom called zebra chip, which means that the flesh has discoloured stripes, and it cooks unevenly.

*Tomato potato psyllid, Bactericera cockerelli Hemiptera: Triozidae, nymph with wing buds and white ‘psyllid sugars’, the wax coated excess sap excreted by the insects. © Plant & Food Research*

What is Tamarixia and how do I use it?

Tamarixia is a small, 100% safe parasitic wasp that cannot sting. It specialises in parasitising tomato potato psyllid. Tamarixia lays its eggs on the surface of psyllid nymphs (young psyllids). Once hatched, the eggs develop into larvae that feed on the psyllid nymphs, eventually killing them.

Gardeners who notice Pysllid on their tomatoes or potatoes can buy the biocontrol agent and establish a viable population of the parasitic wasp around their garden to help control this troublesome pest. It can be bought from Bioforce Ltd

Tomato/Potato Psyllid

What is Tamarixia and how do I use it?

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