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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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UC Management Guidelines for Olive Psyllid on Olive

Click the contributor’s name for licensing and usage information. Efforts were made olovina establish colonies of one parasitoid collected in Spain, but these were unsuccessful.

Honeydew, also produced by nymphs and adults, can lead to sooty mold development on the surface of the host plant Johnson General monitoring guidelines for psyllids are:. Contributed by Alex Bairstow on 21 May, – 5: Skip Navigation Home Page.

Female olive psyllids lay eggs on new shoots, leaves, and buds JohnsonZalom et al. Plant suckers oligina at the base of the tree, if they have not been removed, should be inspected for olive psyllids M.

Official Journal of the International Olive Council Observation of arthropod populations during outbreak of olive psyllid Euphyllura olivina in Oliina olive groves.

Pests in gardens and landscapes: RiversideCA Tel: The adults are about 2. Three insect species are commonly referred to as the olive psyllid: Large populations are able to retard the growth of young trees.

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These types of losses have not been reported in California. However, the olive psyllid is polyphagous, but it only feeds on a few different plants see hosts section below.

Olive psyllid populations may be reduced by pruning. Please consider a year-end gift to BugGuide! This would be the time when it could impact olive production by reducing the numbers of fruit that complete development. A colour handbook, second edition.

It is mainly limited to the coastal areas of Orange County. Click the contributor’s name for licensing and usage information. Ferguson, Pomology, UC Davis. There are nonresidual, contact insecticides that work against psyllids, such as neem oil, insecticidal soap, and olivinx oil Kabashima et al.

When colonies are on inflorescences, the level of sap loss is directly proportional to psyllid numbers and this could affect the amount of fruit that is set.

How to Manage Pests

Dedicated naturalists volunteer their time and resources here to provide this service. This only becomes a problem when olive psyllids are on inflorescences flower clusterswhich ultimately affects fruit production. Agriculture and Natural Resources, University of California. Did not expect to encounter this species here – doesn’t seem to have been recorded from the island wuphyllura.

EPPO Global Database

The accumulation of honeydew on foliage provides a substrate for development of sooty mold Figure 3which can potentially block sunlight and inhibit photosynthesis, or lead to premature aging of leaves that causes the leaves to drop Laemmlen Euphyllura olivine, the olive psyllid, was discovered in July in the California counties of San Diego and Orange and positively identified in September Females lay eggs on the new shoots and buds, with a single female able to lay eggs or more.


The first generation feeds as nymphs beginning in March Alford Insecticides, should they become necessary, are best used before olive psyllids begin producing their waxy secretions, which can provide protection from chemicals Zalom et al.

I am curious how and when and from where the species arrived on the island. Integrated pest management for home gardeners and landscape professionals. Females start egg laying when new shoots appear on olive trees. Females may lay more than 1, eggs. If Euphyllura olivine is able to establish in the Central Valley, it may be a significant problem for commercial olive producers as well.

The success rate for olive psyllid development was highest for the Haouzia variety Meftah et al.