August 13th – A bit better today, and I’m on the mend, and out and about earlier. Time I note for another periodic explanation…

This isn’t pollution at Catshill Junction, or anywhere else it’s happening. This time the scum film at wind traps and bends on the canal is caused by rose bay willow herb plants, which are currently going to seed and producing oodles of the white fluff. 

Just like the sallow earlier in the year, it looks horrid as the chaff and hairy detritus forms a film on the water – but it’ll soon be gone.

Another curious little marker of the passing seasons.