The fungal matrices of Ophiostoma ips hinder movement of the biocontrol nematode agent, Deladenus siricidicola, disrupting management of the woodwasp, Sirex noctilio

BioControl ◽  
2018 ◽  
Vol 63 (5) ◽  
pp. 739-749
Author(s):  
F. Yousuf ◽  
A. J. Carnegie ◽  
R. Bashford ◽  
H. I. Nicol ◽  
G. M. Gurr
2016 ◽  
Vol 103 ◽  
pp. 54-61 ◽  
Author(s):  
Helen F. Nahrung ◽  
Michael Ramsden ◽  
R. Andrew Hayes ◽  
Lesley P. Francis ◽  
Manon W. Griffiths

2000 ◽  
Vol 60 (4) ◽  
pp. 683-687 ◽  
Author(s):  
R. FENILI ◽  
C. J. MENDES ◽  
D. J. MIQUELLUTI ◽  
S. MARIANO-DA-SILVA ◽  
Y. XAVIER ◽  
...  

This work aimed to evaluate the Deladenus siricidicola, Bedding (Neotylenchidae)parasitism in adults Sirex noctilio, Fabricius, 1793 (Hymenoptera: Siricidae). Timber was sampled by cutting out pieces of 0.80 m in length in Sirex noctilio attacked and Deladenus siricidicola inoculated Pinus taeda. Longs were 15-20 cm in diameter, according to the tree age. Samples were packed in gauze-cages, for daily observations, till S. noctilio adults emergence. The emerged insects were transported, in plastic containers to the laboratory, where they were sectioned and dissected under stereoscopic microscopy to observ the nematode occurrence. From the initially proposed ten units, nine of them were evaluated in a total of 1,810 emerged adult insects, being 1,441 males and 369 females. Nematode parasitism was shown in 267 males and 74 females, in a total of 341 infected insects (18.84%).


PLoS ONE ◽  
2018 ◽  
Vol 13 (11) ◽  
pp. e0207529
Author(s):  
Miguel Castillo ◽  
Eugenio Sanfuentes ◽  
Andrés Angulo ◽  
Jose Becerra ◽  
Jesús L. Romero-Romero ◽  
...  

2013 ◽  
Vol 67 (2) ◽  
pp. 203-211 ◽  
Author(s):  
Stefanie A. Kroll ◽  
Ann E. Hajek ◽  
E. Erin Morris ◽  
Stefan J. Long

2018 ◽  
Vol 64 (4) ◽  
pp. 324-332 ◽  
Author(s):  
X. Osmond Mlonyeni ◽  
Brenda D. Wingfield ◽  
Jaco M. Greeff ◽  
Brett P. Hurley ◽  
Michael J. Wingfield ◽  
...  

2011 ◽  
Vol 59 (3) ◽  
pp. 348-353 ◽  
Author(s):  
X. Osmond Mlonyeni ◽  
Brenda D. Wingfield ◽  
Michael J. Wingfield ◽  
Rodrigo Ahumada ◽  
Paula Klasmer ◽  
...  

2014 ◽  
Vol 79 ◽  
pp. 67-74 ◽  
Author(s):  
Fazila Yousuf ◽  
Angus J. Carnegie ◽  
Robin A. Bedding ◽  
Richard Bashford ◽  
Helen I. Nicol ◽  
...  

2016 ◽  
Vol 36 (87) ◽  
pp. 297
Author(s):  
Susete Do Rocio Chiarello Penteado ◽  
Edilson Batista de Oliveira ◽  
Edson Tadeu Iede

The woodwasp Sirex noctilio Fabricius (Hymenoptera: Siricidae) was introduced in Brazil in 1988 and became the main pest in pine plantations. It has spread to about 1.000.000 ha, at different population levels, in the states of Rio Grande do Sul, Santa Catarina, Paraná, São Paulo and Minas Gerais. Control is done mainly by using a nematode, Deladenus siricidicola Bedding (Nematoda: Neothylenchidae). The evaluation of the efficiency of natural enemies has been difficult because there are no appropriate sampling systems. This study tested a hierarchical sampling system to define the sample size to monitor the S. noctilio population and the efficiency of their natural enemies, which was found to be perfectly adequate.


2012 ◽  
Vol 42 (6) ◽  
pp. 1173-1177 ◽  
Author(s):  
I. Leal ◽  
B. Foord ◽  
C. Davis ◽  
P. de Groot ◽  
X.O. Mlonyeni ◽  
...  

The woodwasp Sirex noctilio Fabricius, along with its obligate symbiotic fungus Amylostereum areolatum (Chaillet ex Fr.) Boidin, is amongst the most damaging invasive species to many commercial pine plantations. The most effective biocontrol agent for management of this woodwasp has been the nematode Deladenus siricidicola Bedding. Before this agent can be used in North America, answering key questions about its interaction with native siricids and other strains of the nematode is essential, as would be the need to track its spread after release. The aim of this study was to develop tools to differentiate between the North American D. siricidicola isolates and the Southern Hemisphere Kamona strain of this species. We sequenced a region from ribosomal DNA and the cytochrome oxidase subunit 1 and developed a PCR–RFLP method based on a single nucleotide polymorphism flanking a microsatellite sequence. These markers will be useful for science-based operational biocontrol of S. noctilio.


2008 ◽  
Vol 45 (3) ◽  
pp. 450-459 ◽  
Author(s):  
Brett P. Hurley ◽  
Bernard Slippers ◽  
Philip K. Croft ◽  
Hardus J. Hatting ◽  
Mike van der Linde ◽  
...  

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