The life stages of Euphyllura olivina include an egg, five nymphal instars, and adults (both sexes). Olive psyllids are very small insects ranging. AGRICULTURAL COMMISSIONER/WEIGHTS AND MEASURES DEPARTMENT. Olive Psyllid (Euphyllura olivina). Distribution: Olive growing regions from. Adult olive psyllid, Euphyllura olivina. Olive. Olive Psyllid. Scientific Name: Euphyllura olivina. (Reviewed 3/14, updated 3/14). In this Guideline.

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Feeding in this manner reduces nutrients that are essential for tree development and fruit production.

Contributed by Alex Bairstow on 21 May, – 5: The olive psyllid, Euphyllura olivina Costabelongs to the superfamily Psylloidea, which consists of six families. When nymphal colonies are on the apical parts of euphylllura shoots, sap loss is not important.

How to Manage Pests

Plant suckers shoots at the base of the euphylpura, if they have not been removed, should be inspected for olive psyllids M. The wax can actually protect the psyllid from some insecticides so it is best to control the first generation when buds and flowers olivinq not present. This would be the time when it could impact olive production by reducing the numbers of fruit that complete development.

Nymphs secrete a sticky wax similar to that produced by mealybugswhich accumulates on the foliage and stimulates premature flower drop. The success rate for olive psyllid development was highest for the Haouzia variety Meftah et al. Please consider a year-end gift to BugGuide! Olive Psyllid, Euphyllura olivina Costa Hemiptera: UC pest management guidelines: Biological activity of a number of parasitic and predatory oolivina that attack the olive psyllid is basically sufficient to maintain pest populations below economic threshold.

Olive psyllid – Euphyllura olivina (Costa, ) (Hemiptera:Psyllidae) an occasional pest in olive

Psyllids are related to aphids, mealybugs, scales, leafhoppers, and sharpshooters. Upcoming Events Discussioninsects and people from the BugGuide Gathering in VirginiaJuly Photos of insects and people from the gathering in WisconsinJuly Photos of insects and people from the gathering in VirginiaJune It is unclear at this time whether the distribution of Euphyllura olivina will significantly expand beyond San Diego and Orange Counties. There are typically three generations of olive psyllid per year.


In Croatia, it is a sporadic olive pest.

EPPO Global Database

There are three generations per year. The third generation is often unnoticed, appearing in September and October.

The aestivating olive psyllids hide in cracks of the trunk of the host plant Zalom et al. As its common name suggests, the olive psyllid Figure 1 is found within the family Psyllidae, which contains over genera Myers et al. Since in Croatia olive psyllid generally causes little damage to the olive, chemical control, except in rare cases, is not recommended. Skip Navigation Home Page. The species does not survive in high temps, so low numbers could be a result of the increasing temperatures of summer.

Pests of fruit crops: Because their waxy secretions reduce the attractiveness of olive trees and contaminate anything that comes within contact of the infested trees, efforts have been made to eliminate the infestations with insecticides or by heavily pruning infested plant parts mainly suckers. Pest Notes Publication We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world.

These species have varying and somewhat overlapping distributions in the world. Photograph by Marshall W.

Olive psyllid, Euphyllura olivina Costa Hemiptera: The rate of mortality increases at temperatures above Photos of insects and people from the gathering in ArizonaJuly Photos of insects and people from the gathering in Alabama Photos of insects and people from the gathering in Iowa Photos from the Workshop in Grinnell, Iowa Photos from the gathering in Washington.


While it is still not known what impact psyllids have on olive trees, it appears that they can tolerate low numbers of psyllids without economic damage. Nymphs and adults produce honeydew olivia to aphidswhich can produce sooty mold.

The second olibina causes the most economic damage to olive because the immature olive psyllids are present during fruit production M. Females lay eggs on the new shoots and buds, with a single female able to lay eggs or more. Psyllids generally are monophagous feeding on one plant species or oligophagous feeding on plants within a single family Kabashima et al. Adults overwinter in sheltered areas of the olive trunk.

Olive Psyllid – Euphyllura olivina –

Olive psyllid populations may be reduced by pruning. Feeding may cause flowers to drop prematurely. It is mainly limited to the coastal areas of Orange County. In the United States, olive psyllid infestations are mostly found on ornamental olive trees Johnson Euphyllura olivina has three host plants that it feeds upon and lays eggs on: Surveys to date in California indicate that Euphyllura olivina is limited to the areas from Huntington Beach, Newport Beach and Irvine all in Orange County in the north to the city of San Diego in the south.

Infestations have been seen in olives near vineyards in the Temecula area and in wooded areas near Fallbrook. Presently, the olive psyllid is widely distributed in San Diego County from the coast to as far inland as Valley Center and Fallbrook.