Eucalyptus Redgum Lerp Psyllid

Pest:  Eucalyptus redgum lerp psyllid (Glycaspis brimblecombei)

Pest Type: Insect Pest

lerp psyllid

Major Identifying Features: Suck phloem sap and excrete honeydew, which promotes the growth of black sooty mold, some species also excrete pale wax or crystallized honeydew, adults are usually about 1/8 inch long and hold their wings roof-like over their bodies when feeding, adults lift their bodies at a 45° angle from the plant surface, they are light green to brownish with yellow blotches, psyllids have short antennae, strong jumping legs, no cornicles, nymphs develop in lerps and enlarge them as they grow, yellow or brownish nymphs resemble wingless aphids

Life Cycle: Psyllids on deciduous trees overwinter as eggs or young nymphs in or around bud scales, in spring eggs hatch and nymphs feed on new growth, on evergreen trees all stages can be found year-round, high temperatures may reduce populations of some species, females lay eggs on succulent leaves and young shoots

Pest Rating: Moderate

Management Rating: Moderate

Host/Season/Outbreak Information: Evergreen or deciduous shrubs and trees, especially Eucalyptus species, flooded gum and forest red gum

Damage Information: High psyllid populations can reduce plant growth and cause premature leaf drop, certain species can cause terminals to distort, discolor, or die back, many native shrubs can deal with psyllid and don’t suffer from damage

Management Options: Cultural practices by choosing proper plants, replacing problem plants, avoiding over irrigation and fertilization, proper plant care, biological control with convergent lady beelte, multicolored Asian lady beetle, green lacewings, syrphid flies, pirate bugs, spiders, dragonflies, chemical control is not recommended

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