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PESTS AND DISEASES OF FORESTRY IN NEW ZEALAND

Sirex in South Africa

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Formerly known as the Forest Research Institute, Scion has been a leader in research relating to forest health for over 50 years. The Rotorua-based Crown Research Institute continues to provide science that will protect all forests from damage caused by insect pests, pathogens and weeds. The information presented below arises from these research activities.

From Forest Health News No. 43, June 1995.

About mid 1994 Sirex noctilio was found for the first time in pine plantations in South Africa, however there are no details of locality, etc. as yet. The wood wasp is now present on all Southern Hemisphere continents.
(
Mike Nuttall FRI)

From Forest Health News No. 45, August 1995

Sirex in South Africa Since the last item (FHNews 43, June 1995) we have learned a little more about the establishment of Sirex noctilo in South Africa. It was found there in early 1994 and appears to be widespread throughout areas with a mediterranean climate (Western Cape). This area is somewhat displaced from major forest operations and is planted in Pinus radiata . There is the possibility that the wood wasp may spread to summer rainfall areas where other pine species are planted. The South Africans recently imported the nematode Beddingia siricola, bought from the Australian CSIRO, in the hope of reducing the Sirex population.
(Mike Nuttall, FRI)

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(Scion is the trading name of the New Zealand Forest Research Institute Limited.)

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