Scale gone mad on my Lilli Pillis Traditional remedies not workin
I have an absolute infestation of white scale on my lilli pilli hedges. I have completely drenched them in white oil and pest oil monthly and even fortnightly and it has done nothing.
My hedges are dying branch by branch and some have been totally dessimated. I've heard that Mavrick and Success may be more useful than the oil. Is this correct?
I'm also wondering about the environment that scale like.I've been told that Lillipilli is quite hardy and I water the lilli pillis twice weekly.Is this providing too good an environment for the scale? Should I turn the water off or will this distress the plants more and make the scale spread further?
Do ants play a role in the spreading of scale? Should I be treating ants simultaneously? There is also some black dust on them is this related to the scale or something else entirely.
When is the best time to treat the scale and stop them spreading?
Any help would be most appreciated as the next step is just to kill them all and start again with something with less problems!