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insectwatch

Tomato potato psyllid info

 

 

What to look for in the crop:

Psyllid sugar is the symptom that you are most likely to see on your plants. Excess plant sap which the insect ingests, is excreted as small white waxy beads (psyllid sugar) on the leaf.

Psyllid sugar

The adult psyllid is a small insect (about 3 millimetres) that resembles a miniature cicada. The adults have white markings on their backs in front of the wings (thorax), clear wings, and lines on their abdomen (located beneath the wings) that separate the abdominal segments. When first hatched the adults are light yellow/brown in colour but after 5 days they become grey/black and white banded in colour.  The adults “jump” when disturbed.

adult psyllid
MAF Biosecurity New Zealand - Investigation and Diagnostic Centre

The nymphs feed most often on the undersides of the leaves and will move when disturbed. The larger nymphs have wing buds, which makes them easy to distinguish from whitefly nymphs.

Tomato potato nymphs
MAF Biosecurity New Zealand - Investigation and Diagnostic Centre

The yellow eggs are oval shaped and laid on stalks. Eggs on the leaf margins are easiest to see.

Psyllid egg
MAF Biosecurity New Zealand - Investigation and Diagnostic Centre

If you suspect you have found this pest on your crops you should contact Mette Nielsen, entomologist, at Crop & Food Research.

Any additional  information on the psyllid, its impact and damage to crops and management options can be found on the Biosecurity NZ website.

Current distribution - from grower information and survey.

This work has been done under the MAF Sustainable Farming Fund. Click on map to see a closer view Click on map to see a closer view Click on map to see a closer view Click on map to see a closer view Click on map to see a closer view Click on map to see a closer view

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insectwatch
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Sustainable Farming FundHorticulture New Zealand