Is Ips grandicollis disrupting the biological control of Sirex noctilio in Australia?This article is part of a larger document. View the larger document here.
Sirex woodwasp (Sirex noctilio) is considered one of the most serious threats to exotic Pinus radiata plantations in Australia. This exotic wasp has been established in Australia for more than six decades. The most significant outbreak occurred in the Green Triangle region of southeastern South Australia-western Victoria in the late 1980s, where more than 5 million trees were killed (Haugen 1990).