Publications by authors named "Pham Q Thu"
Chukrasia tabularis A. Juss produces a valuable timber but plantations are susceptible to attack by the shoot-tip borer Hypsipyla robusta Moore. An integrated pest management (IPM) approach is desirable to limit the extent of damage.
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- Peatlands play a crucial role in global carbon and nitrogen cycles, holding 15 to 30% of the world's soil carbon stock, but their varying chemistry complicates global carbon inventories.
- A study analyzed 436 peat cores from 24 countries, finding significant differences in carbon, nitrogen, and organic matter content between different peatland categories, mainly influenced by pH levels.
- The results indicate predictable differences in carbon and organic matter concentrations across peatland types, which can help enhance future assessments of global peatland carbon and nitrogen stocks.
The fungal pathogen, Ceratocystis manginecans, has caused serious canker and wilt disease on Mangifera indica (mango), on legume tree species in Oman and Pakistan and on Acacia spp. in Indonesia. A Ceratocystis species, with similar morphology to C.
View Article and Find Full Text PDFIdentification, pathogenicity and abundance of Paracremonium pembeum sp. nov. and Graphium euwallaceae sp. nov.--two newly discovered mycangial associates of the polyphagous shot hole borer (Euwallacea sp.) in California.
Mycologia
June 2016
Fusarium euwallaceae is a well-characterized fungal symbiont of the exotic ambrosia beetle Euwallacea sp. (polyphagous shot hole borer [PSHB]), together inciting Fusarium dieback on many host plants in Israel and California. Recent discoveries of additional fungal symbionts within ambrosia beetle mycangia suggest these fungi occur as communities.
View Article and Find Full Text PDFThe mass mortality of oak trees has been prevalent in Japan since the late 1980s. The fungus Raffaelea quercivora is transmitted by an ambrosia beetle, Platypus quercivorus, which causes mortality. The beetle is able to bore galleries into the sapwood of most Fagaceae trees in Japan; however, the level of mortality caused by R.
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- Fungi are essential to ecosystems but their diversity and geographic patterns are not well understood.
- Using DNA metabarcoding from soil samples worldwide, researchers found that fungal richness is not directly linked to plant diversity.
- Key factors like climate, soil properties, and location mainly influence fungal richness and community composition globally, revealing trends similar to other organisms with some differences.
The recent decline and death of young cedar, Cedrela odorata L. (Sapindales: Meliaceae), plantations in Vietnam is caused by Aclees sp. (Coleoptera: Curculionidae), a wood-boring brown weevil.
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