Giant pine scale threatens SA forestry industry

Friday 12 Sep 2025

 
South Australia's $3 billion forestry industry says a pest that kills pine trees and is spread by humans needs to be eradicated.  Giant pine scale was found in pine trees in the north-eastern Adelaide suburbs of Hope Valley and Highbury in 2023.

The pest sucks the sap of pine trees, causing branch dieback and eventually killing the tree. 

So far, it has been recorded at the Hope Valley Reservoir, Elliston Reserve, Silverlake Reserve, the aqueduct reserve in Highbury and a business at Holden Hill. The state government said nearly 1,400 trees had been cleared, with more trees set to be felled this year after further outbreaks at the reservoir and the Highbury Aqueduct Reserve.

Primary Industries Minister Clare Scriven said so far, the outbreak had been contained to the north-eastern suburbs. "We have had to remove a number of trees, but of course the plan is, as always, to get that balance right," she said.

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Source: ABC News
Image credit: South Australian Government


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