Biological control of intolerant hardwood competition: Silvicultural efficacy of Chondrostereum purpureum and worker productivity in conifer plantations

2010 ◽  
Vol 259 (8) ◽  
pp. 1571-1579 ◽  
Author(s):  
Vincent Roy ◽  
Denise Dubeau ◽  
Isabelle Auger
Keyword(s):  
Biological Control ◽  
Worker Productivity ◽  
Conifer Plantations ◽  
Chondrostereum Purpureum

Variation in the mitochondrial DNA of the potential biological control agent Chondrostereum purpureum

2000 ◽  
Vol 77 (10) ◽  
pp. 1490-1498 ◽  
Author(s):  
Tod D Ramsfield ◽  
Simon F Shamoun ◽  
Zamir K Punja ◽  
William E Hintz
Keyword(s):  
Biological Control ◽  
British Columbia ◽  
Mitochondrial Dna ◽  
New Zealand ◽  
Cytochrome B ◽  
Biological Control Agent ◽  
Gene Diversity ◽  
Restriction Enzymes ◽  
Sample Population ◽  
Chondrostereum Purpureum

The mitochondrial DNA (mtDNA) of Chondrostereum purpureum (Pers.:Fr.) Pouzar was extracted and purified, and the size ranged from 51.8 to 66.4 kb. One isolate each from British Columbia, Alberta, Finland, the Netherlands, and New Zealand were found to have identical BamHI mtDNA restriction patterns, resulting in a mitochondrial genome of 63.8 kb. An additional isolate from British Columbia and one from Switzerland had different banding patterns, however, resulting in mitochondrial genomes of 66.4 kb and 51.8 kb, respectively. A sequence-characterized amplified region (SCAR) assay, based on a polymerase chain reaction, was developed to rapidly screen a larger population of 84 isolates from North America, Europe, and New Zealand. Two SCARs, one encoding the NADH 4 gene (3 kb) and the second encoding the ATPase VI and cytochrome b genes (5.1 kb), were digested with 24 restriction enzymes. There were no polymorphisms in the NADH 4 containing SCAR, while a single polymorphism was detected by NsiI in the ATPase VI - cytochrome b containing SCAR. Two mitochondrial haplotypes that were distributed throughout the sample population were thus identified. The coancestry coefficient (<$Q7A0D00000010446D80BFFEFF88A524F5343905055B98C420120907B4DDA9ECB1F0>) for all subpopulations of the sample population was calculated to be 0.0353. The level of gene diversity in the mtDNA ofC. purpureum suggested that the chance introduction of novel mitochondrial genes following biological control applications of the fungus is relatively low.

Biological control of forest aphid pests in Africa

1990 ◽  
Vol 80 (1) ◽  
pp. 31-36 ◽  
Author(s):  
N.J. Mills
Keyword(s):  
Biological Control ◽  
Classical Biological Control ◽  
Eastern Africa ◽  
Forest Plantations ◽  
Region Of Origin ◽  
Exotic Pests ◽  
Conifer Plantations ◽  
Control Programmes ◽  
1960S And 1970S ◽  
The 1960S

AbstractThe aphids, Cinara cupressi (Buckton), Eulachnus rileyi Williams and Pineus pini (Macquart), have invaded conifer plantations in southern and eastern Africa between 1968 and 1986. Conifer plantations, and particularly pine plantations, are a new habitat in this region, having been established in the 1960s and 1970s. These aphids are the first non-native pests to colonize these forest plantations. As exotic pests, the aphids are suitable targets for classical biological control through the importation of natural enemies from Europe, the region of origin of the three aphids. The opportunities for biological control are explored and the prospects are encouraging. Details of the natural enemy complexes of the target pests in Europe are provided and discussed in relation to previous successful biological control programmes against conifer pests in other continents.

Use of the silverleaf fungus Chondrostereum purpureum for biological control of stump-sprouting, riparian weedy tree species in New Zealand

2014 ◽  
Vol 43 (3) ◽  
pp. 321-326 ◽  
Author(s):  
S. E. Bellgard ◽  
V. W. Johnson ◽  
D. J. Than ◽  
N. Anand ◽  
C. J. Winks ◽  
...  
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Tree Species ◽  
Stump Sprouting ◽  
Chondrostereum Purpureum

scholarly journals Assessing the potential for biological control of Buddleja davidii with the fungus Chondrostereum purpureum

2008 ◽  
Vol 61 ◽  
pp. 396-396
Author(s):  
T.D. Ramsfield ◽  
M.W.P. Power
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Malt Extract ◽  
Fruiting Bodies ◽  
Buddleja Davidii ◽  
Inundative Biological Control ◽  
The World ◽  
Chondrostereum Purpureum ◽  
One Year ◽  
Cut Surface

Buddleja davidii is a perennial woody shrub that is highly invasive in many parts of the world including New Zealand This study was conducted to assess the potential for inundative biological control of this weed using Chondrostereum purpureum a wound invasive basidiomycete The fungus has been registered for woody weed control in Canada and the Netherlands and is present throughout New Zealand Mature B davidii shrubs planted at the Scion campus Rotorua were cut 30 cm from the ground and the cut surface of the stems was immediately inoculated with C purpureumcolonised malt extract agar (MEA) and sealed with Parafilm There were four replicate shrubs for each of three isolates and the control (inoculation with sterile MEA) One year following inoculation no fruiting bodies of C purpureum have been observed on the treated B davidii Although the inoculated stems appear dead most replicates have extensive epicormic shoot development and are forming coppices

scholarly journals Chondrostereum purpureum as an inundative biological control agent for invasive woody weeds in New Zealand

2010 ◽  
Vol 63 ◽  
pp. 274-274
Author(s):  
T.D. Ramsfield ◽  
C.A. Carlson ◽  
M.W.P. Power ◽  
D. Skudder
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Populus Trichocarpa ◽  
Control Agent ◽  
Lesion Length ◽  
Weed Species ◽  
Buddleja Davidii ◽  
Inundative Biological Control ◽  
Salix Matsudana ◽  
Chondrostereum Purpureum

Chondrostereum purpureum is a basidiomycete fungus that is being investigated as an inundative biological control agent for invasive woody weeds This study was conducted to assess the susceptibility of seven species of weeds to C purpureum The species that were inoculated in this trial were broom (Cytisus scoparius) gorse (Ulex europeaus) buddleia (Buddleja davidii) Himalayan honeysuckle (Leycesteria formosa) hawthorne (Crataegus monogyna) poplar (Populus trichocarpa) and willow (Salix matsudana) Two isolates of C purpureum and a control were used and were each replicated 12 times All plants were potted and the trial took place under nursery conditions Mortality and canker size were measured 6 months after inoculation Data were analysed using SAS The highest mortality (50) was recorded for broom with one isolate but very little mortality was observed across the other species A highly significant weed by isolate interaction was observed with regards to lesion length with weed species susceptibility varying with respect to one of the C purpureum isolates Hawthorn and willow had greater lesion lengths after inoculation with the same isolate that had caused mortality in broom The results from this trial are being used to direct a larger field trial

Sign in / Sign up

Export Citation Format

Share Document