white louse scale

Started by Ron - 2065 Thursday, 26 April 2012

How do you tell when white louse scale are dead? I have a large mandarin (5m tall) that was infested and after spraying lime sulfer twice the scale are still there but when I look at them through a magnifying glass they do not appear to move. Does this mean they are kaput or do they drop off when dead?

Deirdre - The Compulsive Gardener Sunday, 06 May 2012

How are they going now, Ron? I think if they aren"t moving you may have knocked them on the head. Deirdre

Ron - 2065 Sunday, 06 May 2012

Thanks Deirdre, I think I"ve got them. They appear to have been washed off in a short sharp shower of rain we had the other night. Here"s hoping, thanks again. Ron

Deirdre - The Compulsive Gardener Sunday, 06 May 2012

Glad to hear that, Ron! Deirdre

Ron - 2065 Monday, 10 September 2012

Thanks Patricia but I finished up giving the mandarin a real boy"s prune leaving practically nothing for the scale to live on!!

Ron - 2065 Friday, 21 December 2012

3 months on and I think the poor old mandarin is in trouble again. I gave it a hard prune and it started to come back well but I then noticed the leaves on the new shoots were becoming wavy and the thorns are enormous and the white louse scale is back!! See attached. Any advice would be welcome even if it is chop it down and start again!! Ron


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