Diversity and Abundance of Twig Borers of Robusta Coffee and Their Associated Ambrosia Fungi in Uganda

Egonyu, James P.; Mukasa, Yosia; Ogari, Isaac; Ahumuza, Gladys; Hakiza, G. J.; Olal, S.; Phiri, Noah; Ritchie, Barbara J.

doi:10.4001/003.025.0311

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…The hollow trunk was presumably caused by the insect borer which commonly attacks the trunks of Rubiaceae trees, namely Xylosandrus spp. These insects attacked weathered tree trunks and burrow trunks close to the soil surface (Egonyu et al 2017). The sample examination results of Pavetta sp.…”

Section: Visual Tree Assessmentmentioning

confidence: 99%

Evaluation on Fallen Trees of Hesperocyparis guadalupensis (S.Watson) Bartel and Pavetta sp. in Bali Botanic Garden Based on Visual Assessment and Acoustic Tomography

Swari

Sari²,

Hanum³

et al. 2022

Jur. Ilm. Kehut.

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The health of fallen tree collection especially which has not been assessed yet, has to be evaluated to understand its cause. This study aimed to see the health conditions of Cupressus guadalupensis and Pavetta sp. and the causes of fallen trees. The identification of tree health was done visually with a modified Tree Risk Assessment (TRA) form from the International Society of Arboriculture (ISA). Meanwhile, the internal examination used ArborSonic 3D Acoustic Tomograph. The tomogram results showed a hole in the tree trunk. The cause of the fallen trees was predicted due to structural damage with wind factors.

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Section: Visual Tree Assessmentmentioning

confidence: 99%

Evaluation on Fallen Trees of Hesperocyparis guadalupensis (S.Watson) Bartel and Pavetta sp. in Bali Botanic Garden Based on Visual Assessment and Acoustic Tomography

Swari

Sari²,

Hanum³

et al. 2022

Jur. Ilm. Kehut.

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“…A few fungal species isolated from galleries infested by these three Xylosandrus spp. are plant pathogens, such as species of the genus Ophiostoma, Fusarium, Phomopsis and Raffaelea (Kinuura 1995;Dute et al 2002;Ploetz et al 2013;Carrillo et al 2014;Bateman et al 2016;Egonyu et al 2017;Gugliuzzo et al 2020;Morales-Rodríguez et al 2020). The extent to which they contribute to tree damage or death remains untested.…”

mentioning

confidence: 99%

Recent advances toward the sustainable management of invasive Xylosandrus ambrosia beetles

et al. 2021

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We provide an overview of both traditional and innovative control tools for management of three Xylosandrus ambrosia beetles (Coleoptera: Curculionidae: Scolytinae), invasive species with a history of damage in forests, nurseries, orchards and urban areas. Xylosandrus compactus, X. crassiusculus and X. germanus are native to Asia, and currently established in several countries around the globe. Adult females bore galleries into the plant xylem inoculating mutualistic ambrosia fungi that serve as food source for the developing progeny. Tunneling activity results in chewed wood extrusion from entry holes, sap outflow, foliage wilting followed by canopy dieback, and branch and trunk necrosis. Maintaining plant health by reducing physiological stress is the first recommendation for long-term control. Baited traps, ethanol-treated bolts, trap logs and trap trees of selected species can be used to monitor Xylosandrus species. Conventional pest control methods are mostly ineffective against Xylosandrus beetles because of the pests’ broad host range and rapid spread. Due to challenges with conventional control, more innovative control approaches are being tested, such as the optimization of the push–pull strategy based on specific attractant and repellent combinations, or the use of insecticide-treated netting. Biological control based on the release of entomopathogenic and mycoparasitic fungi, as well as the use of antagonistic bacteria, has yielded promising results. However, these technologies still require validation in real field conditions. Overall, we suggest that management efforts should primarily focus on reducing plant stress and potentially be combined with a multi-faceted approach for controlling Xylosandrus damage.

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Diversity and Abundance of Twig Borers of Robusta Coffee and Their Associated Ambrosia Fungi in Uganda

Cited by 2 publications

References 16 publications

Evaluation on Fallen Trees of Hesperocyparis guadalupensis (S.Watson) Bartel and Pavetta sp. in Bali Botanic Garden Based on Visual Assessment and Acoustic Tomography

Evaluation on Fallen Trees of Hesperocyparis guadalupensis (S.Watson) Bartel and Pavetta sp. in Bali Botanic Garden Based on Visual Assessment and Acoustic Tomography

Recent advances toward the sustainable management of invasive Xylosandrus ambrosia beetles

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