Delignification - or chemical defibration.

Chemical delignification is a process that breaks down the lignin in timber. Lignin is an organic polymer that acts as a glue in timber (amongst other things), giving structural integrity to cell walls and thus holding the fibres together. It's the same material that gets attacked by fungal decay. The result is similar, the timber loses its structural integrity and slowly flakes apart. 

Chemical delignification gives this roof batten its "hairy" appearance.  

Delignification is often found in roof timber battens as depicted in these pictures, being caused by chemicals in the air. Often it is found near heavy industry, major roads or not far from the Sea.  

If there is significant damage caused by delignification then it's best to get it checked for structural integrity by a builder, seeing that roof battens are often affected by this phenomenon, caution should be exercised when walking around on roofs.

This chemical defibration was discovered in Newcastle, an area with historically a lot of heavy industry and is not too far from the ocean!

See a video showing the obvious effects of chemical defibration on roof battens.  

Liquid termite treatment vs. Baiting

Here is a video on the differences of a liquid chemical treated zone versus a perimeter baiting system. 

The video is produced by Dow Agrosciences who produce the Sentricon baiting system, so although it is promoting baiting it does provide a good overview of the functionality of both systems.

Chemical Termite treatments after heavy rain and flooding.

Following the East Coast Low, heavy rainfall has battered a large portion of the East Coast of Australia. Many homes were flooded and a large portion of land was inundated with water, both moving and standing. Does this flooding and saturation affect chemical termite treatments?

A technical note from BASF regarding Termidor treatments can be found here.