‘Heat is on’: Window to stop spread of polyphagous shot-hole borer closing as spring nears, experts warn

Arborists warn the window to stop the spread of a tiny destructive beetle wreaking havoc on Perth’s trees is closing, given it will thrive in the imminent warmer weather.

The invasive polyphagous shot-hole borer has been less active in cooler winter weather, giving respite to teams tackling the…