1 Anoplophora chinensis in Lombardy, Italy : an update of the ...
1 Anoplophora chinensis in Lombardy, Italy : an update of the ...
1 Anoplophora chinensis in Lombardy, Italy : an update of the ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Sign <strong>an</strong>d symptoms<br />
1 18<br />
Frass (excrements)<br />
The amount <strong>of</strong> extruded frass varies depend<strong>in</strong>g on <strong>the</strong> host pl<strong>an</strong>t species, larval <strong>in</strong>star <strong>an</strong>d<br />
environmental conditions…<br />
Frass is not systematically found on <strong>in</strong>fested trees; frass is not a fully reliable symptom which may be lack<strong>in</strong>g even if trees are <strong>in</strong>fested with<br />
larvae. Fur<strong>the</strong>rmore, it is located on ground level <strong>an</strong>d could be easily washed <strong>of</strong>f dur<strong>in</strong>g irrigation or removed by gardeners.
Change language