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Rolf
I have a murraya hedge how can you tell if scale is under control as they are still on the trunk etc

Over the last two years the Murraya hedge has suffered from red spider mites, then aphids and now scale. I seem to have the spider mites and aphids under control, but using natasoap and confidor and more recently white oil to control the scale. How can I tell if I have scale under control as they seem to not be falling off the plant? Also is it safe to spray white oil every week or two over the winter period to get the plants healthy for the spring grow spurt? Also how long would confidor stay in the plants system for? Would these pests be more prevelant as we have had a lot of dry weather? Would regular spraying of the leaves with water help minimise pests? We are in Brisbane QLD. Thank you

Submitted: 12:09PM, 20 Apr 2016
Answer: Hi Rolf, when you treat scale when it dies it doesn’t necessarily fall of. When you touch it on the plant it will crumble instead of being hard and squishy. The white oil and the confidor together have probably controlled it unless the scale is not dead I wouldn’t spray again, concentrate on keeping them healthy around the roots…we have some great new Thrive products called Thrive naturals which have seaweed and fish products in them, it will be beneficiary to use these in autumn to build up the strength of your murrayas- a good prune will help as well. Confidor will last in your plant for a little while because it is systemic. http://www.yates.com.au/products/fertilising/water-soluble/yates-thrive-vegie-and-herb-natural-fish-blood-bone-concentrate/ I hope this helps
Category: Pests
Tags: scale
Answered: 01:06PM, 20 Apr 2016

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