Forest Pathology (2005) 35, 105-113

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S.D. Reay, J.M. Thwaites and R.L. Farrell (2005)
A survey of Ophiostoma species vectored by Hylastes ater to pine seedlings in New Zealand
Forest Pathology 35 (2), 105-113
Abstract: Ecological studies in New Zealand require consideration of the impact of exotic (introduced) organisms from disparate environments. A survey of Ophiostoma species isolated and identified from Pinus radiata stumps, the bark beetle Hylastes ater collected from these stumps and from P. radiata seedlings following sublethal damage by H. ater, was undertaken in 10 reforestation sites in New Zealand. Nine Ophiostoma species were isolated and identified in this survey. Ophiostoma galeiformis and Ophiostoma huntii were isolated most frequently from all the substrates sampled. Ophiostoma floccosum, Ophiostoma setosum, Leptographium procerum and Leptographium truncatum were also isolated from stumps, damaged seedlings and beetles. Ophiostoma quercus was only isolated from stumps and beetles and Ophiostoma ips only from beetles. A strong relationship between the severity of H. ater feeding damage, and the presence and number of species of Ophiostoma was found. Eight Ophiostoma species were transmitted by H. ater to P. radiata seedlings in laboratory transmission experiments. From the results of this field survey and the laboratory experiments we confirm that H. ater is a vector of Ophiostoma species to P. radiata seedlings in New Zealand.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Stephen D. Reay, Roberta L. Farrell

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Hylastes ater Pine (Pinus) New Zealand
Grosmannia huntii Pine (Pinus) New Zealand
Ophiostoma quercus Pine (Pinus) New Zealand
Ophiostoma setosum Pine (Pinus) New Zealand
Ophiostoma ips New Zealand
Ophiostoma floccosum Pine (Pinus) New Zealand
Leptographium procerum Pine (Pinus) New Zealand
Leptographium lundbergii Pine (Pinus) New Zealand
Grosmannia galeiformis Pine (Pinus) New Zealand