Hallo Ranjini, this is caused by a bark beetle (German name Buchdrucker Kaefer) http://de.wikipedia.org/wiki/Buchdrucker_(K%C3%A4fer) Unfortunately I did not find any english site. If I find a good one, will post the link here. The female bore just underneath the bark and deposits eggs on each side of the "channel". The larvae then bore further away from the main channel and feed on the wood. Sometimes you will find a very small hole at the end of the channel, where the creature comes out. Your Foto shows the Log, probably nearby one would find the bark as well, with the mirror-pattern. I have collected a few barks and I used to bring the pattern on a pottery or sometimes print it on the paper. It is in fact a disease, but as along as the number of beetles is small and they use old trees I don't mind beetles carving beautiful patterns in the wood.
Regards Nalini ----- Original Message ----- From: "ranjini kamath" <[email protected]> To: "indiatreepix" <[email protected]> Sent: Wednesday, October 07, 2009 11:31 AM Subject: [indiantreepix:20349] Marks left by Bracket Fungi? > Found this interesting log in Bannarghatta Forest.04-10-09.What could > the marks be due to? > Would like some info. > Thanks. > Ranjini Kamath > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "indiantreepix" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.co.in/group/indiantreepix?hl=en -~----------~----~----~----~------~----~------~--~---
