Host susceptibility to Gonipterus platensis (Coleoptera: Curculionidae) of Eucalyptus species

Gonçalves, Catarina I.; Vilas-Boas, Liliana; Branco, Manuela; Rezende, Gabriel Dehon Sampaio Peçanha; Valente, Carlos

doi:10.1007/s13595-019-0850-y

Cited by 15 publications

(11 citation statements)

References 35 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Finally, forestry management could also alter the distribution of tree species and their pests [42]. The area occupied by A. nitens has increased substantially the northern Iberian Peninsula due to its naturalisation in areas prone to frosts and its lower susceptibility to defoliation by G. platensis [55]. Changes in land use comprising an increase in urban and forested areas would affect the spread of pests [56].…”

Section: Discussionmentioning

confidence: 99%

Actions for Monitoring the Gonipterus Pest in Eucalyptus on the Cantabrian Coast

Ayuga-Téllez

García-Iruela

Rielo³

et al. 2022

Agronomy

View full text Add to dashboard Cite

Forests are a natural resource of great importance for sustainable development. They represent the primary use of Spanish territory and cover 36% of its area. Eucalyptus shrublands are the most productive, particularly on the Cantabrian coast, occupying a total area of 406,566 ha. Since 1991, some of these shrublands have been affected by the eucalyptus snout beetle (Gonipterus platensis), a coleoptera (weevil) from the Curculionidae family that feeds on eucalyptus leaves and produces significant damage. The innovation project of the Supra-regional Operational Health Group on Gonipterus in Eucalyptus was developed (2019–2020) to establish a global approach to the serious problem it causes in Asturias and Galician Eucalyptus stands. A group of experts devised two action protocols to unify the methods and variables measured in the field: a protocol for measuring and estimating damage (degree of defoliation) and a parasitism protocol to establish actions to monitor the degree of parasitism (collection of oothecae, management of the sample, laboratory procedure). In the results, in addition to establishing the sampling protocol, an analysis of the data (from 2017 to spring 2020) provided by the different administrations of the Autonomous Communities studied has been carried out. The data analysis reveals an improvement in the impact of the damage on the Cantabrian coast (29.8% reduction in damage in Galicia and 14.7% in Asturias). In Galicia, the number of adult insects decreased from 2017 to 2019, increasing in the spring (from April to June) of 2020 above the mean values of previous years in that period. The number of larvae in the different larval stages showed similar development in all cases. The mean larvae (in their different stages) and mean oothecae showed a significant decline in the year 2018 compared to the spring of 2017, with an upturn in 2019 and again similar values to 2018 in the spring of 2020. In Asturias, similar mean values of the order of 0.5 insects per plot on dates (May–June) in spring were observed in 2019. While in 2020, a progressive increase could be seen in the mean number of insects throughout March, up to 1.9 insects per plot. Results of research on the biological treatment of parasitisation of oothecae with A.nitens were also collected to adjust the number of oothecae per bag deposited in the field and the number of Anaphes released per ha. Based on the field observations, the appropriate release time was determined to succeed in controlling the Gonipterus population.

show abstract

Section: Discussionmentioning

confidence: 99%

Actions for Monitoring the Gonipterus Pest in Eucalyptus on the Cantabrian Coast

Ayuga-Téllez

García-Iruela

Rielo³

et al. 2022

Agronomy

View full text Add to dashboard Cite

show abstract

“…Studies of G. platensis and Gonipterus sp. n. 2. have shown a general tendency of these species to prefer feeding on trees of the subgenus Symphyomyrtus , particularly those in the section Maidenaria (Newete et al ., 2011; Gonçalves et al ., 2019), to which E. dunnii and E. nicholii belong. E. propinqua , which belongs in the section Latoangulatae, has been shown to sustain G .…”

Section: Discussionmentioning

confidence: 99%

Gonipterus (Coleoptera: Curculionidae) in subtropical Australia: host associations and natural enemies

2021

View full text Add to dashboard Cite

Gonipterus is a genus of defoliating weevils that causes significant impact in commercially grown eucalypts in their native range in southern Australia and as invasive pests in Western Australia and several countries overseas. The diversity of species in this genus is still in the process of discovery, and in subtropical Australia, its diversity and ecological parameters are largely unknown. We surveyed Gonipterus phenology, species composition and trophic associations in South East Queensland, where little has been recorded about this genus. Surveys were conducted once a month in a non‐commercial plantation of native eucalypts, where three species of trees were sampled regularly and others checked on an ad hoc basis. On each sampling occasion, adult weevils, larvae and egg capsules were collected, adults identified, larvae reared and egg capsules individualized in small containers for emergence of larvae and parasitoids. Two peaks of egg‐laying occurred, whereas numbers of adults and larvae had only one peak each. Six species of Gonipterus were collected: two described but in need of revision, two undescribed but previously recognized and two undescribed and hitherto unrecognized, each with a different pattern of host–tree association. Three egg‐parasitoid species, Anaphes nitens, Centrodora damoni and Euderus sp. were reared from egg capsules, varying in prevalence according to the tree species from which the eggs were collected.

show abstract

“…Research has been conducted searching for Eucalyptus species less susceptible to the Eucalyptus snout weevil (e.g. Gonçalves et al 2019) as well as E. globulus genetic materials resistant to Mycosphaerella leaf disease (Pérez et al 2016). Some selected genetic materials are now used by enterprises for plantation in areas at high risk of a specific agent.…”

Section: Tree Breedingmentioning

confidence: 99%

Opportunities and challenges of Eucalyptus plantations in Europe: the Iberian Peninsula experience

et al. 2021

View full text Add to dashboard Cite

Although native to Australia, Eucalyptus species are found throughout Europe. At present, they are located mainly in the Iberian Peninsula and Eucalyptus globulus is the most commonly planted species. Climate forecasts anticipate an expansion of Eucalyptus to other regions of Europe. The fast growth of E. globulus, together with its resprouting ability and wood properties, has promoted the use of this species in the Iberian Peninsula. The total volume of E. globulus harvested there was close to 14 million m 3 in 2019. Eucalyptus species represent the main source of raw material for the pulp and paper industries and provide an important source of income to non-industrial owners. Being exotic fast-growing trees, their expansion has also been associated with negative environmental impacts. The species therefore poses a series of challenges, while also generating opportunities. The objectives of this review paper are: (1) to summarize the importance of Eucalyptus plantations in Europe; (2) to analyse the opportunities and challenges of this genus in present and future plantations in Europe;(3) to assess to what extent forest management, at both stand and landscape levels, can reduce negative impacts; (4) to make policy and management recommendations that may support the use of this genus in other European regions. These aims are accomplished based on a thorough literature review, particularly focused on research developed in the Iberian Peninsula.

show abstract

Host susceptibility to Gonipterus platensis (Coleoptera: Curculionidae) of Eucalyptus species

Cited by 15 publications

References 35 publications

Actions for Monitoring the Gonipterus Pest in Eucalyptus on the Cantabrian Coast

Actions for Monitoring the Gonipterus Pest in Eucalyptus on the Cantabrian Coast

Gonipterus (Coleoptera: Curculionidae) in subtropical Australia: host associations and natural enemies

Opportunities and challenges of Eucalyptus plantations in Europe: the Iberian Peninsula experience

Contact Info

Product

Resources

About