scholarly journals Seasonal Fluctuation of the Pine Wood Nematode, Bursaphelenchus xylophilus (STEINER et BUHRER) NICKLE (Nematoda : Aphelenchoididae), Transmitted to Pine by the Japanese Pine Sawyer, Monochamus alternatus HOPE (Coleoptera : Cerambycidae)

1985 ◽  
Vol 20 (3) ◽  
pp. 241-245 ◽  
Author(s):  
Ei'ichi SHIBATA
Keyword(s):  
Seasonal Fluctuation ◽  
Bursaphelenchus Xylophilus ◽  
Pine Wood Nematode ◽  
Monochamus Alternatus ◽  
Pine Wood ◽  
Monochamus Alternatus Hope ◽  
Japanese Pine Sawyer

scholarly journals The effect of feeding behavior of Monochamus alternatus (Coleoptera: Cerambycidae) on the departure of pine wood nematode, Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae)

2019 ◽  
Author(s):  
Yang Wang ◽  
Fengmao Chen ◽  
Lichao Wang ◽  
Lifeng Zhou ◽  
Juan Song
Keyword(s):  
Oxidative Phosphorylation ◽  
Feeding Behavior ◽  
Bursaphelenchus Xylophilus ◽  
Pine Wood Nematode ◽  
Monochamus Alternatus ◽  
Pine Wood ◽  
Start Date ◽  
Significant Difference ◽  
Departure Date ◽  
Effect Of Feeding

AbstractIn order to study the causes of pine wood nematode (PWN) departure from Monochamus alternatus, the effects of the feeding behavior of M. alternatus on the start date of the departure of PWN were studied. The start date of the departure of PWN carried by the directly fed M. alternatus was 5—13 d after beetle emergence, mainly concentrated within 6—10 d, with a mean (±SD) of 8.02 ± 1.96 d. The start date of the departure of PWN carried by the M. alternatus fed after starvation was 5—14 d after beetle emergence, mainly concentrated within 6—9 d, with a mean of 7.76 ± 2.28 d. The results show that there was no significant difference in the start departure date of PWN between the two treatments. This shows that the feeding behavior of M. alternatus is not the trigger for PWN departure. At the same time, it was found that the motility of the PWN carried by M. alternatus at 8 d after emergence was significantly greater than that of the PWN carried by the newly emerged M. alternatus. And the PWN carried by M. alternatus at 8 d after emergence was extracted more easily than the PWN carried by newly emerged beetles. These results show that greater motility was associated with easier departure of PWN from M. alternatus. In addition, transcriptome sequencing found that the level of oxidative phosphorylation metabolism of PWN carried by beetles at 8 d after emergence was significantly higher than that in the PWN carried by newly emerged beetle. High oxidative phosphorylation was associated with increased energy production and motility by the PWN and were the internal cause of the start of nematode departure.

scholarly journals Ophiostomatoid fungi associated with pines infected by Bursaphelenchus xylophilus and Monochamus alternatus in China, including three new species

MycoKeys ◽  
2018 ◽  
Vol 39 ◽  
pp. 1-27
Author(s):  
HuiMin Wang ◽  
YingYing Lun ◽  
Quan Lu ◽  
HuiXiang Liu ◽  
Cony Decock ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Pine Wilt Disease ◽  
Molecular Data ◽  
Bursaphelenchus Xylophilus ◽  
Its2 Region ◽  
Ophiostomatoid Fungi ◽  
Pine Wood Nematode ◽  
Pine Wood ◽  
Bark And Ambrosia Beetles ◽  
Japanese Pine Sawyer

The activity of the pine wood nematodeBursaphelenchusxylophilusleads to extremely serious economic, ecological and social losses in East Asia. The nematode causes pine wilt disease, which is currently regarded as the most important forest disease in China. The pathogenic nematode feeds on dendrocola fungi to complete its cycle of infection. As the vector of the nematode, the Japanese pine sawyer (Monochamusalternatus) also carries dendrocola fungi. Pine woods, infected byB.xylophilusand tunnelled byM.alternatus, are also inhabited by ophiostomatoid fungi. These fungi are well known for their association with many bark and ambrosia beetles. They can cause sapstain and other serious tree diseases. The aims of our study were to investigate and identify the ophiostomatoid communities associated with the epidemic pine wood nematode and the pine sawyer inPinusmassonianaandP.thunbergiiforests, which are the main hosts of the pine wood nematode in China. Two hundred and forty strains of ophiostomatoid fungi were isolated from nematode and sawyer–infected trees in the coastal Shandong and Zhejiang Provinces, representing newly and historically infected areas, respectively. Six ophiostomatoid species were identified on the basis of morphological, physiological and molecular data. For the latter, DNA sequences of the internal transcribed spacer (ITS1–5.8S–ITS2) region and partial b-tubulin gene were examined. The ophiostomatoid species included one known species,Ophiostomaips, three novel species, viz.Ophiostomaalbumsp. nov.,Ophiostomamassonianasp. nov.andSporothrixzhejiangensissp. nov.and two species whose identities are still uncertain, Ophiostomacf.deltoideosporum and Graphilbumcf.rectangulosporium, due to the paucity of the materials obtained. The ophiostomatoid community was dominated byO.ips. This study revealed that a relatively high species diversity of ophiostomatoid fungi are associated with pine infected byB.xylophilusandM.alternatusin China.

A new parasitoid (Hymenoptera: Braconidae) of Monochamus alternatus (Coleoptera: Cerambycidae) in China

Biologia ◽  
2009 ◽  
Vol 64 (5) ◽  
Author(s):  
Yiping Wang ◽  
Xuexin Chen ◽  
Hong Wu ◽  
Junhua He
Keyword(s):  
Bursaphelenchus Xylophilus ◽  
Pine Wood Nematode ◽  
Immature Stages ◽  
Forest Pest ◽  
Monochamus Alternatus ◽  
Pine Wood

AbstractBracomorpha ninghais sp. n. (Hymenoptera: Braconidae) is described and illustrated based on individuals reared from the immature stages of the pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in Zhejiang of China, which is considered a notorious forest pest associated with the main vector of the pine wood nematode Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae) in China.

scholarly journals Escape of Pine Wood Nematode, Bursaphelenchus xylophilus, through Feeding and Oviposition Behavior of Monochamus alternatus and M. saltuarius (Coleoptera: Cerambycidae) Adults

2009 ◽  
Vol 48 (4) ◽  
pp. 527-533 ◽  
Author(s):  
Dong-Soo Kim ◽  
Sang-Myeong Lee ◽  
He-Soon Huh ◽  
Nam-Chang Park ◽  
Chung-Gyoo Park
Keyword(s):  
Oviposition Behavior ◽  
Bursaphelenchus Xylophilus ◽  
Pine Wood Nematode ◽  
Monochamus Alternatus ◽  
Pine Wood

Bidens pilosa Extract Effects on Pine Wilt: Causal Agents and Their Natural Enemies

2019 ◽  
Vol 66 (3) ◽  
pp. 284-290
Author(s):  
Satoshi Taba ◽  
Koichiro Ashikaga ◽  
Tsuyoshi Oohama ◽  
Atsushi Ajitomi ◽  
Chouji Kiyuna ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Hyphal Growth ◽  
Bursaphelenchus Xylophilus ◽  
Control Treatment ◽  
Pine Wood Nematode ◽  
Bidens Pilosa ◽  
Pine Wood ◽  
Pine Wilt ◽  
Japanese Pine Sawyer

Abstract We investigated the nematicidal and insecticidal activities of the aqueous extract from Bidens pilosa var. radiata on pine-wood nematode (Bursaphelenchus xylophilus) and Japanese pine sawyer (Monochamus alternatus) larvae and adults, the causal agent and vector of pine wilt, respectively. The aqueous extract killed the pine-wood nematode, adults, and larvae of the vector in vitro at all concentrations tested, and the effect decreased significantly with increasing extract dilution. Repellent activity was observed on the nematode and the vector adults as well, although the activity decreased with time in case of the vector. Furthermore, the aqueous extract of B. pilosa effectively promoted approximately 3.0–9.0 mm of hyphal growth in Beauveria spp., when compared with the control treatment. A minor insecticidal effect was also observed on two species of click beetle (Cryptalaus larvatus pini and Paracalais berus), which are natural predators of the Japanese pine-sawyer larvae. Pesticidal and repellent activities of the aqueous extract observed on several organisms related to pine wilt suggest that a multifactorial approach may effectively control this devastating disease.

Presence of the pine wood nematode, Bursaphelenchus xylophilus, in the spermatheca of female Monochamus alternatus

Nematology ◽  
2004 ◽  
Vol 6 (1) ◽  
pp. 157-159 ◽  
Author(s):  
Yoh Arakawa ◽  
Katsumi Togashi
Keyword(s):  
Bursaphelenchus Xylophilus ◽  
Pine Wood Nematode ◽  
Monochamus Alternatus ◽  
Pine Wood

scholarly journals Study of the departure of pine wood nematode, Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae) from Monochamus alternatus (Coleoptera: Cerambycidae)

2020 ◽  
Vol 23 (4) ◽  
pp. 981-987
Author(s):  
Yang Wang ◽  
Fengmao Chen ◽  
Lichao Wang ◽  
Lifeng Zhou ◽  
Juan Song
Keyword(s):  
Bursaphelenchus Xylophilus ◽  
Pine Wood Nematode ◽  
Monochamus Alternatus ◽  
Pine Wood
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