Risk to plant health in the EU territory of the intentional release of the bud‐galling wasp Trichilogaster acaciaelongifoliae for the control of the invasive alien plant Acacia longifolia

Rossi, Vittorio

doi:10.2903/j.efsa.2015.4079

Cited by 4 publications

(7 citation statements)

References 41 publications

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“…Following the publication of the EFSA Scientific Opinion on the risk posed to plant health in the EU by the intentional release of the bud-galling wasp T. acaciaelongifoliae for the control of the invasive alien plant A. longifolia in April 2015(EFSA PLH 2015, the EFSA PLH Panel intends to adopt a statement on the procedures to follow should similar requests be made in future to assess the risk posed to plant health in the EU by the intentional release of BCAs of invasive alien plant species.…”

Section: Interpretation Of the Terms Of Reference 12mentioning

confidence: 99%

“…The EFSA PLH Panel Opinion on the risk to plant health in the EU of the intentional release of Trichilogaster acaciaelongifoliae as a biological control agent of the invasive alien plant Acacia longifolia (EFSA PLH Panel, 2015) is the first EFSA scientific opinion on a potential BCA of an invasive alien plant and the process of assessment has revealed a few issues. Therefore, the PLH Panel wishes to make the following observations on the process that could be followed should future requests be made.…”

Section: 4mentioning

confidence: 99%

“…In addition, the Portuguese application for permission to release T. acaciaelongifoliae did not consider the risk posed to plant health outside of Portugal. A third problem was the still ongoing tests regarding the host status of two plant species, the alien invasive plant Acacia retinodes (which is also cultivated as ornamental in some European countries) and the native Portuguese broom Cytisus striatus (EFSA PLH Panel, 2015).…”

Section: 4mentioning

confidence: 99%

“…This self-task intends to build on the EFSA Scientific Opinion on the risk posed to plant health in the EU by the intentional release of the bud-galling wasp Trichilogaster acaciaelongifoliae for the control of the invasive alien plant Acacia longifolia, which was published in April 2015 (EFSA PLH 2015). This was the first mandate on an exotic biological control agent (BCA) of an invasive alien plant that EFSA had to assess.…”

Section: Introductionmentioning

confidence: 99%

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Statement on the assessment of the risk posed to plant health in the EU territory by the intentional release of biological control agents of invasive alien plant species

Rossi¹

2015

EFS2

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Classical biological control has been successfully used in various continents to manage many invasive alien plants originating from Europe, but this approach is still not widely adopted in Europe, despite its advantages (sustainable, effective, efficacious, good safety record) compared to chemical and manual control of weeds. Following the publication in April 2015 of the EFSA PLH Scientific Opinion on the risk posed to plant health in the EU by the intentional release of the bud‐galling wasp Trichilogaster acaciaelongifoliae for the control of the invasive alien plant Acacia longifolia, the EFSA PLH Panel is publishing this statement on the procedure to follow should similar requests be made in future. Ideally what is required for an EFSA Opinion on a risk assessment of a BCA release is: (i) host specificity tests of a plant list agreed in advance by an appropriate body; (ii) a risk assessment for plant health produced using a standardized template for the whole of the EU or at the least for an appropriate bio‐climatic area within the EU; and (iii) consideration of benefits. This process could be facilitated by an expert working group that would be available to advise the applicant at regular intervals. The role of EFSA is best suited to providing a peer review of a weed BCA risk assessment for the EU considering that peer review of applications prepared by researchers specialized in a particular BCA is the procedure adopted for BCA risk assessment in the countries that have much experience with using exotic BCAs of weeds. Following the appropriate International Standard for Phytosanitary Measures (ISPM) 3 and European and Mediterranean Plant Protection Organization (EPPO) Phytosanitary Measure (PM) 6/1 standards will help the releasing authority manage the process. Post‐release, as per EPPO PM 6/2, all appropriate safety procedures should be put in place.

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Section: Interpretation Of the Terms Of Reference 12mentioning

confidence: 99%

Section: 4mentioning

confidence: 99%

Section: 4mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Statement on the assessment of the risk posed to plant health in the EU territory by the intentional release of biological control agents of invasive alien plant species

Rossi¹

2015

EFS2

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“…Acacia species have industrial (tannin and pulp production), agroforestry and ornamental uses (Griffin et al, 2011). They were introduced for economic purposes or for rehabilitation of degraded land, but subsequent invasion has resulted in significant economic and environmental impacts (as cal-culated in De Wit et al, 2001) that outweigh the economic benefits (Low, 2012;Duponnois et al, 2013;Richardson et al, 2015). However, their use is expected to increase, which could entail a further expansion in their distribution (Griffin et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Invasiveness, ecological impacts and control of acacias in southwestern Europe – a review

Vieites-Blanco

González-Prieto

2020

Web Ecol.

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Abstract. The most prolific acacias in southern Europe (Acacia dealbata, A. melanoxylon and A. longifolia) are rapidly spreading in its westernmost area: Portugal and NW Spain, where congeners with invasion potential are already established. We performed a bibliographic search of acacia invasions in southern Europe and used spatial data on acacia distribution and abiotic parameters in Iberia to check the influence of abiotic factors on acacia invasion. According to our results, in Iberia A. dealbata and A. melanoxylon seem limited by high soil pH (pHCaCl2>5.5), frequent frosts (>21 to 40 d yr−1) and low annual precipitation (<500 to 1000 mm); data were inconclusive for A. longifolia, while A. saligna prefers neutral soils in the driest and warmest areas. The percentage of area occupied by A. dealbata and A. melanoxylon increases significantly with the percentage of burnt surface. In the literature, acacias' invasiveness is usually attributed to their high resprouting and seeding capacity and to native exclusion through their allelopathic potential; symbiotic promiscuity with rhizobia; high environmental plasticity; and adaptation to burnt, cleared and resource-poor land. However, it is unknown how acacias became so invasive in western Iberia, where native Fabaceae shrubs with similar ecological traits (and invaders outside their natural range) are abundant. Invasive acacias can modify fire and water regimes, aboveground biodiversity, and topsoil characteristics (microbial communities, pH, organic matter and macronutrients levels); nevertheless, sound comparisons with mature stands of Iberian legumes for these and other soil properties (N fluxes, micronutrients) are lacking. As several acacias outcompete Iberian Fabaceae shrubs partly thanks to enemy release, the introduction of biocontrol agents (as for A. longifolia in Portugal) can be useful for invasion control.

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Acacia longifolia (golden wattle)

Vélez-Gavilán¹

2022

CABI Compendium

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Risk to plant health in the EU territory of the intentional release of the bud‐galling wasp Trichilogaster acaciaelongifoliae for the control of the invasive alien plant Acacia longifolia

Abstract: KEY WORDSbeneficial organisms, biological control, bud-galling wasps, invasive Acacia spp., ornamental industry, plant health, Trichilogaster acaciaelongifoliae

Cited by 4 publications

References 41 publications

Statement on the assessment of the risk posed to plant health in the EU territory by the intentional release of biological control agents of invasive alien plant species

Statement on the assessment of the risk posed to plant health in the EU territory by the intentional release of biological control agents of invasive alien plant species

Invasiveness, ecological impacts and control of acacias in southwestern Europe – a review

Acacia longifolia (golden wattle)

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