Death of Quercus crispula by inoculation with adult Platypus quercivorus (Coleoptera: Platypodidae)

Kinuura, Haruo; Kobayashi, M

doi:10.1303/aez.2006.123

Cited by 72 publications

(54 citation statements)

References 6 publications

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“…The causal agent of the disease is the Ascomycete fungus Raffaelea quercivora Kubono et Shin. Ito (Kubono and Ito, 2002), and the insect vector of the fungus is reported to be the ambrosia beetle Platypus quercivorus (Murayama) (Kinuura and Kobayashi, 2006). P. quercivorus is widely distributed in Japan, with collection records from the main islands of Honshu, Kyushu, Shikoku, and the smaller islands of Miyakejima, Sadogashima, Yakushima, AmamiOshima, and Okinawajima (Murayama, 1953(Murayama, , 1954(Murayama, , 1955Nobuchi, 1973;Ito and Yamada, 1998;Makihara and Okabe, 2005;Nunokawa, 2007).…”

Section: Introductionmentioning

confidence: 99%

Genetic variation among Japanese populations of Platypus quercivorus (Coleoptera: Platypodidae), an insect vector of Japanese oak wilt disease, based on partial sequence of nuclear 28S rDNA

Hamaguchi

Goto

2010

Appl. Entomol. Zool.

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The ambrosia beetle, Platypus quercivorus, is an insect vector of the Ascomycete fungus, Raffaelea quercivora, the causal agent of Japanese oak wilt disease. In this study, we compared the nucleotide sequences (937-955 bp) of the nuclear 28S rDNA fragment, including the D1 and D2 expansion segment, among local populations of the beetle in Japan. Sequence analysis of 81 beetles from 32 collection sites ranging from the Ryukyu Islands to northern Honshu Island showed seven types of sequences, many of which were separated among different geographic areas. Phylogenetic analysis showed that these sequence types were separated between two deeply divergent genetic groups, suggesting the necessity for taxonomic reexamination of this species. DNA typing of beetles and oak wilt status at the collection sites indicated that several genetically divergent beetle populations are associated with the incidence of the disease. This is the first investigation of genetic variation in the ambrosia beetle across Japan.

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Section: Introductionmentioning

confidence: 99%

Genetic variation among Japanese populations of Platypus quercivorus (Coleoptera: Platypodidae), an insect vector of Japanese oak wilt disease, based on partial sequence of nuclear 28S rDNA

Hamaguchi

Goto

2010

Appl. Entomol. Zool.

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“…In addition, holes on surface of stem produced galleries inside of stem with complicated pattern (Sone et al, 1998). In Japan, ambrosia beetle P. quercivorus is known to be associated with ambrosia fungi, Raffaelea quercivora (Esaki et al, 2004;Kinuura and Kobayashi, 2006). Ambrosia beetles including Euplatypus parallelus, P. quercivorus, and P. koryoensis commonly produce frass (Moon et al, 2008b;Tarno et al, 2011;Tarno et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

NEW RECORD OF THE AMBROSIA BEETLE, Treptoplatypus micrurus Schedl. ATTACK ON SONOKEMBANG (Pterocarpus indicus Willd.) IN BATU, INDONESIA

2015

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Sonokembang (Pterocarpus indicus Willd.) is commonly planted as an ornamental tree in Batu city, East Java. In 2012 and 2013, there were some dying trees of sonokembang along the road of Batu city, and there were some indications that the signs and symptoms might be related to the ambrosia beetle samples from Batu. To clarify the precise condition, identification of beetle samples was needed in this research. Based on survey and sample collections conducted in Batu from the early July 2013 to the end of March 2014, characteristic of damage on trees was observed together with the presence of beetle collected. Identification was based on morphological characters such as posterior elytral declivities and body size of male, and mycangia on female`s pronotum. Based on the morphological characters, there were some special characters which described such as 1) the body size of female adult was bigger than male adult, 2) elytral declivities on male adult was unique, and 3) there was mycangia on pronotum of female adults. Morphological characters showed that the ambrosia beetle attacked on sonokembang belonged to Treptoplatypus micrurus Schedl. This ambrosia beetle species seems to be the responsible agent that caused dying trees of sonokembang.

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“…in Asia are caused by fungi that effect restricted damage in their hosts. For both of these diseases, mass attack by the respective vectors is associated with, and apparently required for, tree mortality (90,102). Both diseases qualify as black swans, in that large swaths of native oak trees have been killed by unpredictable and hitherto unknown diseases (89,98).…”

Section: Greater Understandings Of These Possibilities Are Neededmentioning

confidence: 99%

“…Japanese oak wilt (JOW) is caused by R. quercivora (98). Its vector, Platypus quercivorus (Platypodinae: Platypodini), transmits the pathogen to members of the Fagaceae, among which there is a considerable range in susceptibility (90,120). Global warming has been proposed as a reason for the development of JOW, as the beetle has extended its geographic range northward into the ranges of previously unencountered host species (80).…”

Section: Greater Understandings Of These Possibilities Are Neededmentioning

confidence: 99%

Destructive Tree Diseases Associated with Ambrosia and Bark Beetles: Black Swan Events in Tree Pathology?

et al. 2013

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Diseases that are associated with ambrosia and bark beetles comprise some of the most significant problems that have emerged on trees in the last century. They are caused by fungi in the Ophiostomatales, Microascales and Hypocreales, and have vectors in the Scolytinae (ambrosia and bark beetles), Platypodinae (ambrosia beetles) and Hylesininae (bark beetles) subfamilies of the Curculionidae (Coleoptera) (73,102,144). Some of these problems, such as Dutch elm disease (DED), have a long history, have been extensively researched, and are fairly well understood (23,56,70,113,149,168,169). In contrast, other similar diseases developed recently and are poorly or partially understood (2,3,42,51,73,89,94,98,114,127,137,154,158, 164,165). Significant data gaps may exist for the ecology, epidemiology and management of the latter diseases.The emergence and unexpected importance of these tree diseases are discussed in thisarticle. An underlying factor in most of these interactions is the absence of a coevolved history between the so-called "naïve" or "new encounter" host trees and the pathogens and/or beetles (27,128,174). For the ambrosia beetles, these interactions are associated with susceptibility to what are typically benign fungi and atypical relationships with healthy trees (ambrosia beetles favor trees that are dead or stressed). Interestingly, the pathogens for both the ambrosia and bark beetle-associated diseases often have symbiotic relationships with the insects that are not based on phytopathogenicity. Some of the most alarming and damaging of these diseases are considered below as "black swan events" (155).Black Swans. Before 1697, improbable events and situations in Europe were known as "black swans" (at the time, all swans known to Europeans were white) (134). In that year, the black swan, Cygnus atratus, was discovered in Western Australia (38). Thereafter, "black swan" developed as a metaphor for a supposed impossibility that is contradicted with new information.For example, John Stuart Mill used black swan logical fallacy when identifying falsification, a key component in the scientific method (68).In a recent book, Taleb (155) developed Black Swan Theory (BST). Unlike the "black swan" to which Mill referred (68), BST focuses on unexpected events of large magnitude and consequence (155). Taleb (155) recognized such events in diverse fields including finance, history, science and technology. He suggested that black swan events: 1) have extreme impacts; 2) lie outside the realm of regular expectations (they are rare); and 3) are unpredictable.Although all ambrosia and bark beetle-associated diseases are not black swan events, several do fulfill the above criteria since they have large impacts, are uncommon surprises and are unpredictable (2,3,51,56,73,89,94,98,114,137,154,158, 164,165) (Table 1). They are typically understood and appreciated only with the benefit of hindsight and subsequent research.The Beetles and Beetle-associated Tree Diseases. The order Coleoptera contains more species than any other or...

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Death of Quercus crispula by inoculation with adult Platypus quercivorus (Coleoptera: Platypodidae)

Cited by 72 publications

References 6 publications

Genetic variation among Japanese populations of Platypus quercivorus (Coleoptera: Platypodidae), an insect vector of Japanese oak wilt disease, based on partial sequence of nuclear 28S rDNA

Genetic variation among Japanese populations of Platypus quercivorus (Coleoptera: Platypodidae), an insect vector of Japanese oak wilt disease, based on partial sequence of nuclear 28S rDNA

NEW RECORD OF THE AMBROSIA BEETLE, Treptoplatypus micrurus Schedl. ATTACK ON SONOKEMBANG (Pterocarpus indicus Willd.) IN BATU, INDONESIA

Destructive Tree Diseases Associated with Ambrosia and Bark Beetles: Black Swan Events in Tree Pathology?

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