Forest health worldwide is impacted by many invasive alien pathogens and pests (IAPPs)
that cause significant harm, with severe economic losses and environmental alterations …

Gall-inducing insects cause the development of specialised plant tissues (galls) that provide
them with nutrition and some measure of protection from physical and biotic stresses. Their …

The gall wasps Leptocybe invasa and Ophelimus maskelli (Hymenoptera Eulophidae) have
become established in the Mediterranean Basin during the last 15 years. In contrast to the …

As well as being planted for wind breaks, landscape trees, and fuel wood, eucalypts are also
widely used as urban street trees in California. They now are besieged by exotic insect …

Leptocybe invasa Fisher & La Salle (Hymenoptera, Eulophidae) is an invasive pest in
Eucalyptus plantations throughout the world. Potential biological control agents for L. invasa …

The larval parasitoid Quadrastichus mendeli (Hymenoptera: Eulophidae: Tetrastichinae), a
highly effective parasitoid of the invasive blue-gum chalcid Leptocybe invasa …

We report here for the first time the presence of Ophelimus mediterraneus sp. n. in
Mediterranean Europe. This species appears to be closely related to Ophelimus maskelli, a …

The expansion of eucalypt forestry worldwide has been accompanied by accidental and
deliberate introductions of Australian insects associated with eucalypts. Local insect species …

Ophelimus eucalypti and Ophelimus maskelli are gall wasps that are considered as a threat
to the large Eucalyptus commercial plantations in Sumatra, Indonesia. However, they are …

In this chapter we concentrate on the main invasive species which feed on the foliage, by
consuming leaves or inducing galls, and which affect both native and non-native tree …