Author Topic: Golden root mealybug  (Read 550 times)

Peter Kohn

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Golden root mealybug
« on: June 17, 2017, 03:56:31 PM »
Just seen a post on the SRGC forum by Alan Elliott who apparently ran a Meconopsis Workshop at RBGE today. He was drawing attention to this as a potentially devastating pest, Has anyone had problems with this ?  How easy are they to spot ?  Any obvious early symptoms ?  Worrying and would like to know more.

Meconopsis_Group

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Re: Golden root mealybug
« Reply #1 on: June 17, 2017, 05:12:25 PM »
Hello a very difficult question to answer however here goes the Golden Mealy bug we think came in from New Zealand  went with plants to a Meconopsis Enthusiast who sold plants to others thus spreading the problem the Mealy bug is easily recognised will attack other plants as well beware do not buy or take any plants from unknown sources sorry but I risk to name where this came from be careful cheers.
« Last Edit: July 22, 2017, 12:15:28 PM by Meconopsis_Matt »

poppy girl

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Re: Golden root mealybug
« Reply #2 on: June 18, 2017, 09:21:30 AM »
Golden root mealy bug.
Like all other gardens plants, at times, pests and diseases can be a problem for Meconopsis. Slugs, snails, mildew, botrytis, crown rot to name a few. Recently it has been discovered that there is a new non-native pest called,
Golden root mealybug.  Chryseococcus arecae.
The non-native Golden root mealybug is a sap-feeding insect that feeds on the roots of a wide variety of plants. It has been found on Meconopsis and Primula in the UK and unlike most other mealybug species found in Britain it is able to survive the winter outdoors. The golden root mealybug was first recorded in 2012 so is a relatively recent arrival in the UK. It is a native of New Zealand and has been reported in Scotland.                                     
Infestations are usually first noticed when the roots of underperforming plants are examined. Small (2-3 mm) insects covered in a golden yellow wax can be seen attached to the roots. Other sap-sucking root pests e.g. root aphid or other root mealybugs are usually white. If any of your plants are underperforming, please check the roots to see if you can see this pest.


Peter Kohn

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Re: Golden root mealybug
« Reply #3 on: June 18, 2017, 09:23:50 AM »
Many thanks for the information. Will be vigilant and also careful not to buy in any meconopsis !

Meconopsis_Group

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Re: Golden root mealybug
« Reply #4 on: June 18, 2017, 10:00:44 AM »
Here is a picture of the offending bug please destroy any plants found with this and report to  Group we must prevent any further spread, cheers.

poppy girl

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Re: Golden root mealybug
« Reply #5 on: June 18, 2017, 10:19:04 AM »
Really good image to show what members should be looking for. 

AliceB

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Re: Golden root mealybug
« Reply #6 on: June 20, 2017, 05:53:10 PM »
The golden root mealybug was discussed at the group meeting of 17th October 2015 within Alan Elliot's talk 'Propagation of Meconopsis'. It was subsequently reported in a group newsletter of November 2015. Both of these can be found in the Member's Area of the web site.

I seem to recall that Pat Murphy then took the floor and gave an impromptu talk on her own special method of dealing with the potential of these bugs arriving on incoming pots. Sadly this is not reported in the Member's Area. I seem to recall that it used many old nylon tights and much work but she felt it was justified.


Meconopsis_Group

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Re: Golden root mealybug
« Reply #7 on: June 20, 2017, 06:00:55 PM »
Hello thanks for your information I am sure Pat will post again once she comes home however we need to try and find out more methods which can deal with this Bug some chemicals are for sale but not to gardeners I will search also cheers