Questions tagged: bluestone

Missing
Val
Answer: Hi Val, Yates Bluestone which contains copper sulphate can be used to control algae on pathways including concrete. Dissolve 5 grams in a 9 litre w...
Category: Weeds
Tags: bluestone, algae
Answered: 02:00PM, 18 Oct 2011
Missing
Lynne
Answer: Hi, Thank you for your enquiry. We no longer manufacture that product, however, it is a poison and should not be used where wildlife, like frogs ma...
Answered: 12:48PM, 15 Dec 2015