The bizarre phenomenon started about three weeks ago and sparked wild speculation about what it could be.Some are worried it could be harmful.Some are worried it could be harmful.

Mystery yellow blobs are appearing on cars, windows and bins in part of Stockport – and it’s left people baffled.

The bizarre phenomenon started about three weeks ago and sparked wild speculation about what it could be.

It appears to be liquid landing and drying, leaving markings which keep coming back when cleaned.

Some suggested it could be bee poo, but there don’t appear to have been any sightings of large swarms.

Never miss a story with the MEN’s daily Catch Up newsletter – get it in your inbox by signing up here

hulme>Cheadle Hulme resident Roy, 78, said that some people are worried it could be harmful.

“We’ve been suffering with this problem for about two or three weeks,” he said.

“We’ve been here for 30-odd years and we’ve never seen it before, we’re all a bit fed up with it.

“I was worried that it could be air pollution and it could be a health concern. My main concern is if it’s harmful to us, I don’t mind washing the car.”

The material has landed on bins and windows.The material has landed on bins and windows.

Cheadle East and Cheadle Hulme North councillor David Meller posted online about the strange substance in June, after getting several reports from residents.

“This has probably been the most unusual piece of casework I’ve ever had and, I hope, it isn’t anything more sinister than ‘bee poo’ or digested pollen,” Coun Meller said.

“Hopefully, it’s just nature doing its thing. However, considering it’s affecting a large area of my ward – from the Ladybridge estate right over to Cheadle Heath – and there haven’t been any reports of bee swarms causing this, I am nervous it’s something else. I know residents affected are, too.”

A car roof was left covered in the yellow markings.A car roof was left covered in the yellow markings.

Join our Stockport WhatsApp group HERE

Stockport council has been investigating the reports.

It confirmed to the Local Democracy Reporting Service that the yellow blobs are being left by insects or bees, and are nothing to worry about.

A spokesperson for the council said: “We can understand residents’ concerns but this is a common phenomenon associated with insect/bee droppings and pollen and is not a public health concern.”