Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae) and Its Fungal Symbiont Ambrosiella roeperi Associated with Arecanut Kernel Decay in Karnataka, India

Thube, Shivaji Hausrao; Pandian, Thava Prakasa; Bhavishya, Anthara; Babu, Merin; Josephrajkumar, A.; Chaithra, M.; Hegde, Vinayaka; Ruzzier, Enrico

doi:10.3390/insects13010067

Cited by 7 publications

(3 citation statements)

References 25 publications

(29 reference statements)

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“…The tribe inhabits all major world climatic regions and its highest diversity can be found in tropical and subtropical regions. Xyleborini are generally xylomycetophagous species 18 , rarely seed feeders [19][20][21] , and actively farm symbiotic fungi inside parental galleries 22,23 . These fungi serve primarily as food for both larvae and adults but also to detoxify plant defense chemicals 24 .…”

Section: Background and Summarymentioning

confidence: 99%

The first full host plant dataset of Curculionidae Scolytinae of the world: tribe Xyleborini LeConte, 1876

et al. 2023

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Xyleborini is the largest tribe of Scolytinae accounting for about 1300 species worldwide; all species are primarily xylomycetophagous, developing on symbiotic fungi farmed in plant woody tissues. Xyleborini wood-boring action, associated with the inoculum of symbiotic fungi, can lead, sometimes, to the emergence of host plant dieback, wood damage and death; for this reason, multiple Xyleborini are major pests on both cultivated, forest and ornamental trees. Many Xyleborini are invasive worldwide and great effort is expended to manage their biological invasions or prevent new arrivals. Imports of host plants often have a primary role as a pathway for introduction and are frequently responsible for the establishment of species in non-native environments. In this context, data availability on Xyleborini host plants is a major limiting factor in the development of effective detection and monitoring strategies as well as a fundamental variable to consider in risk assessment of plant pests and invasive species. This contribution provides updated host records and the hosts economic categorization for the 1293 Xyleborini known worldwide to date.

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Section: Background and Summarymentioning

confidence: 99%

The first full host plant dataset of Curculionidae Scolytinae of the world: tribe Xyleborini LeConte, 1876

et al. 2023

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“…This particular beetle infests all the woody sections of trees, ranging from small- to medium-diameter twigs, branches, and trunks. It can attack relatively small woody parts with a diameter of 2.5–8 cm, but even larger logs with a diameter of up to 30 cm are susceptible to damage [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Assessment and Optimization of the Insecticidal Properties of γ-Al2O3 Nanoparticles Derived from Mentha pulegium By-Products to Xylosandrus crassiusculus (Carob Beetle)

Mohamed Abdoul-Latif,

Ainane,

Eddabbeh

et al. 2024

Molecules

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This study concentrates on assessing the insecticidal attributes of the γ-Al2O3 nanoparticles derived from the remnants of Mentha pulegium, which include essential oil, ethanolic extract, and plant waste. The synthesis of the γ-Al2O3 nanoparticles was executed using a direct sol-gel procedure, affirming the crystal structure according to extensive physicochemical analyses such as UV-Vis, XRD, FTIR, and SEM. Evaluation of the insecticidal activity in vitro was conducted against Xylosandrus crassiusculus, a pest that infests carob wood, utilizing strains from diverse forests in the Khenifra region, situated in the Moroccan Middle Atlas. The lethal doses 50 ranged from 40 mg/g to 68 mg/g, indicating moderate effectiveness compared to the commercial insecticide Permethrin. Optimization of the conditions for the efficiency of the γ-Al2O3 nanoparticles was determined using experimental plans, revealing that time, humidity, and temperature were influential factors in the lethal dose 50 of these nanomaterials. Moreover, this study encompasses the establishment of correlations using Principal Component Analysis (PCA) and Ascending Hierarchical Classification (AHC) among various geographic, biological, and physical data, amalgamating geographic altitude and γ-Al2O3 nanoparticle insecticide parameters, as well as the attributes of the mechanical tests conducted on the carob wood affected by insects. The correlations highlight the close connections between the effectiveness of the insecticide, mountain altitude, and the mechanical parameters that were examined. Ultimately, these nanoparticles demonstrate promising potential as alternative insecticides, thus opening up encouraging prospects for safeguarding against carob wood pests.

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“…Ornamental or timber production species such as eucalyptus ( Eucalyptus spp., L'Hér), maple ( Acer spp., L.), and oak ( Quercus spp., L.) can also be attacked (Ranger et al, 2016). Large scale infestations can have serious economic implications for farmers and local communities (Thube et al, 2022), and there are no known effective treatments among conventional insecticides for beetles that are already established in host trees. Reports of breeding populations on conifers are infrequent and restricted to freshly cut logs of a few species of Pinus and Juniperus (Horn & Horn, 2006; Nahrung, 2021).…”

Section: Introductionmentioning

confidence: 99%

Phenological observations and trapping tactics for the granulate ambrosia beetle Xylosandrus crassiusculus (Coleoptera: Curculionidae, Scolytinae) in New Zealand

Sutherland

Meurisse

Pugh

et al. 2023

Agri and Forest Entomology

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1. The granulate ambrosia beetle (GAB) Xylosandrus crassiusculus, was first formally detected in New Zealand in 2019. Since then, GAB has subsequently been found infesting numerous tree species in the Auckland region.2. Flight intercept traps baited with ethanol lures were deployed from October 2019 to May 2021 at three sites in the Auckland region to ascertain the phenology of GAB in New Zealand. Two distinct peak flight periods were identified in early and late summer, while a smaller and inconsistent third peak was detected in early autumn. Logistical analysis of GAB captures in the ethanol-lured traps and degreeday (DD) accumulation indicated that 90% of flight activity is completed by 800 DD.3. To assess monitoring tactics, flight intercept traps were baited with three different ethanol lures with varying release rates or ethanol-soaked or non-soaked wood bolts from three species of trees. A lure releasing 2 g ethanol per day was most effective at capturing GAB. Ethanol-soaked bolts were less effective than the lures. 4. Xylosandrus crassiusculus represents a significant risk for shrubs and trees native to New Zealand, as well as commercial horticultural and forestry trees. We recommend using ethanol-lured panel traps for monitoring purposes.

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Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae) and Its Fungal Symbiont Ambrosiella roeperi Associated with Arecanut Kernel Decay in Karnataka, India

Cited by 7 publications

References 25 publications

The first full host plant dataset of Curculionidae Scolytinae of the world: tribe Xyleborini LeConte, 1876

The first full host plant dataset of Curculionidae Scolytinae of the world: tribe Xyleborini LeConte, 1876

Assessment and Optimization of the Insecticidal Properties of γ-Al2O3 Nanoparticles Derived from Mentha pulegium By-Products to Xylosandrus crassiusculus (Carob Beetle)

Phenological observations and trapping tactics for the granulate ambrosia beetle Xylosandrus crassiusculus (Coleoptera: Curculionidae, Scolytinae) in New Zealand

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