Invasion history and management of Eucalyptus snout beetles in the Gonipterus scutellatus species complex

Schröder, Michelle L.; Slippers, Bernard; Wingfield, Michael J.; Hurley, Brett Phillip

doi:10.1007/s10340-019-01156-y

Cited by 36 publications

(50 citation statements)

References 104 publications

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“…Due to the nature of biological control and the specificity of the interaction between pest and biological control agent unidentified cryptic species, either the pest or biocontrol agent, could decrease the efficacy and success of the programmes (Bickford et al ., 2006). For example, the Eucalyptus weevil, Gonipterus scutellatus ( sensu lato ) has been a pest of Eucalyptus species for many years, with varying levels of control by a mymarid parasitoid, Anaphes nitens (Mapondera et al ., 2012; Schröder et al ., 2020). In the last decade, this weevil has reached pest status in Western Australia where it is also invasive (Mapondera et al ., 2012).…”

Section: Challenges In Dealing With the Identification Of Invasive Gamentioning

confidence: 99%

“…In the last decade, this weevil has reached pest status in Western Australia where it is also invasive (Mapondera et al ., 2012). Recent taxonomic studies suggested that the ineffectiveness of the parasitoid in some regions may be due to the presence of cryptic species in the pest genus (Mapondera et al ., 2012; Schröder et al ., 2020).…”

Section: Challenges In Dealing With the Identification Of Invasive Gamentioning

confidence: 99%

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Invasive gall‐forming wasps that threaten non‐native plantation‐grownEucalyptus: diversity and invasion patterns

Dittrich-Schroder

Hurley

Wingfield

et al. 2020

Agri and Forest Entomology

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Gall-forming hymenopterans of Eucalyptus species are highly successful invaders causing significant damage in non-native plantation forests. To date, at least 16 of these species have been recorded as invasive eucalypt gall formers, of which less than half are known from Australia where they are thought to be native. About 80% of the species have become invasive only in the last two decades, <10%, of which were known from Australia beforehand. 2 Two species, Leptocybe invasa and Ophelimus maskelli are global invaders that have become established in 43 and 23 countries, respectively, since 2000. They belong to a large number of wasps that cause similar damage and that could become invasive in the future. 3 The problem of identification is exacerbated by the fact that many species lack taxonomic descriptions; over 80% of the invasive eucalypt gall wasps were first described from their invasive range. The small number of taxonomists able to identify these insects slows accurate diagnoses. Even when initial identifications have been made, these may be confused with morphologically similar but distinct cryptic species, which may differ in their host range and natural enemy interactions. 4 Furthermore, detailed information regarding their biology and native distribution is typically sparse or unknown. This lack of information delays the initiation of management actions because breeding for resistance and biological control requires accurate identification of the target pest. 5 The gall-forming hymenopterans associated with Eucalyptus represent an important group on which to focus the development of pre-emptive quarantine, monitoring and potential management options. Given the global nature of invasions by these insects, an international and collaborative research approach is required, where knowledge and tools for study can be shared in a more effective manner.

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Section: Challenges In Dealing With the Identification Of Invasive Gamentioning

confidence: 99%

Section: Challenges In Dealing With the Identification Of Invasive Gamentioning

confidence: 99%

Invasive gall‐forming wasps that threaten non‐native plantation‐grownEucalyptus: diversity and invasion patterns

Dittrich-Schroder

Hurley

Wingfield

et al. 2020

Agri and Forest Entomology

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“…The eucalyptus snout beetle, Gonipterus sp. n. 2 (originally recorded as G. scutellatus) 41 , recorded in South Africa in 1916 (Figure 1), was the first serious non-native pest to affect non-native plantations in the country 42,43 . Numerous other non-native insect pests, especially those on Pinus spp.…”

Section: Non-native Insects and Fungimentioning

confidence: 99%

“…51 From the insect side, the eucalyptus snout beetle is at least in part responsible for the discontinued planting of Eucalyptus viminalis and E. globulus in the country. 40,42,43 And the recent introduction of the gall wasp L. invasa has already substantially influenced the Eucalyptus genotypes that can be planted in affected areas due to considerable differences in host resistance. 45,52 Much as in the case of introduced insect pests, a large number of host-specific pathogens of Pinus, Eucalyptus and Acacia species have been recorded in South Africa.…”

Section: Non-native Insects and Fungimentioning

confidence: 99%

“…This use dates back to the introduction of the parasitoid wasp Anaphes nitens for the biological control of Gonipterus sp. 2 (then known as G. scutellatus) 42,43 , which remains one of the classic examples of successful biological control. Other examples of classical biological control for non-native insect pests include Pauesia sp.…”

Section: Management Of Pests and Pathogensmentioning

confidence: 99%

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Tree health in South Africa: Retrospect and prospect

et al. 2020

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South Africa is a country with very limited natural forest cover. Consequently, the timber and fibre needs of the country cannot be provided for from indigenous forest. It is largely for this reason that South Africa initially developed a highly productive plantation forest industry, which today makes a substantial contribution to the local economy. These plantations are based on non-native species of Eucalyptus, Pinus and Australian Acacia. In the early years of establishment, South African plantations were relatively free of pest and pathogen problems. But, over time, an increasing number of insects, fungi and bacteria have emerged as serious threats to the sustainability of the forestry industry. Numerous native pests and pathogens, especially insects, have adapted to these introduced tree species to cause damage or disease. The problem is compounded by the accidental introduction of non-native pests and pathogens, and this has been at a rapidly increasing rate over the past three decades. Some of these introduced pests and pathogens also threaten the fitness and even the survival of many indigenous South African tree species. Fortunately, South Africa has developed an impressive knowledge base and range of integrated management options to deal with these problems. This development was first driven by government programmes, and in more recent years by public–private partnerships between industry, universities and government. It is clear from the pattern of emergence of pests and pathogens in recent years that South Africa will deal with an increasing number of these problems and a continuously changing tree health environment. This requires robust investment in both quarantine and mitigation mechanisms to protect the country’s biodiversity as well as to ensure the sustainability of its wood and fibre industries.

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Presence of the Eucalyptus snout beetle in Ecuador and potential invasion risk in South America

Crespo‐Pérez,

Soto‐Centeno,

Pinto

et al. 2023

Ecology and Evolution

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Eucalyptus snout beetles are a complex of at least eight cryptic species (Curculionidae: Gonipterus scutellatus complex), native to mainland Australia and Tasmania, that defoliate Eucalyptus trees and are considered important pests. Since the 19th century, three species of the complex have been introduced to other continents. Here, we document the presence of Eucalyptus snout beetles in Ecuador. We used DNA data for species identification and unambiguously demonstrated that the Ecuadorian specimens belong to the species Gonipterus platensis, which has low genetic diversity compared with other species in the complex. We analyzed G. platensis' potential distribution in South America with ecological niche models and found several areas of high to intermediate climatic suitability, even in countries where the pest has not been registered, like Peru and Bolivia. Accurate identification of species in the G. scutellatus complex and understanding of their potential distribution are essential tools for improved management and prevention tactics.

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Invasion history and management of Eucalyptus snout beetles in the Gonipterus scutellatus species complex

Cited by 36 publications

References 104 publications

Invasive gall‐forming wasps that threaten non‐native plantation‐grownEucalyptus: diversity and invasion patterns

Invasive gall‐forming wasps that threaten non‐native plantation‐grownEucalyptus: diversity and invasion patterns

Tree health in South Africa: Retrospect and prospect

Presence of the Eucalyptus snout beetle in Ecuador and potential invasion risk in South America

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