White stuff beneath thorns

Benyellow · Post by **Benyellow** » Sun Mar 08, 2015 4:11 am

Anyone knows what is the white stuff beneath the thorns of my melocactus? I suspect it's spider mites but couldn't find any sign of them.

Rod Smith · Post by **Rod Smith** » Sun Mar 08, 2015 12:59 pm

Could be the remnants of a mealy bug egg cluster. I'd look very closely for evidence of mealy bugs and their cotton wool-like egg clusters, See links below.

https://www.rhs.org.uk/advice/profile?PID=201" onclick="window.open(this.href);return false;

https://www.google.co.uk/search?q=mealy ... UoAQ&dpr=1" onclick="window.open(this.href);return false;

Benyellow · Post by **Benyellow** » Mon Mar 09, 2015 6:30 am

Thanks so much, I'll check.