Posted by FarmI on April 26, 2010, 8:35 am
About 18 months ago we plante a couple of hundred natives in a windbreak in
apaddock. They've all done very well but there is a pest on two of these
shrubs that has captured my interest.
The two shrubs/trees are a type of hakea and the pest is obviously putting
out some form of exudate attractive to ants as there are ants very active on
the plants. The pest is like a minute snail of about 2 mm maximum size. On
the stem they look like tiny white circular blobs with a tiny black dot on
the outermost part of the shell. It's only when you rub them off and look
at them very closely that it's possible to see that they are small snail
like things. I say snail like because the shell is quite hard and the
opening that is where the pest attached to the tree looks like a miniature
snail opening.
These snail like things don't seem to move, but seem to be attached fairly
firmly to the shrubs on the stems but not on the leaves. I'm wondering it
these things could be some form of scale?????
Does anyone have any idea what these things might be please?
Posted by FarmI on April 26, 2010, 9:35 am
> Does anyone have any idea what these things might be please?
Answering my own question here for those who might be interested. I did a
google and was stunned at how many varieties of scales there are and how
hard I had to hunt to find anything like it. I think the one we have is an
armoured scale and the one that looks most like it is called ceroplastes
janeirensis:
http://www.google.com.au/imgres?imgurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/ceroplastes%2520janeirensis.jpg&imgrefurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/especies.htm&h75&wX5&sz &tbnid=_YVaaSX-GB2bDM:&tbnh‡&tbnw5&prev=/images%3Fq%3Dceroplastes&hl=en&usg=__40Yg3Tm8_QVW4fN_S6ol-31yu4c=&ei=I4zVS9LOE4ro7APJ_vS0Dw&sa=X&oi=image_result&resnum=4&ct=image&ved AwQ9QEwAw
Posted by Loosecanon on April 26, 2010, 10:37 am
>> Does anyone have any idea what these things might be please?
> Answering my own question here for those who might be interested. I did a
> google and was stunned at how many varieties of scales there are and how
> hard I had to hunt to find anything like it. I think the one we have is
> an armoured scale and the one that looks most like it is called
> ceroplastes janeirensis:
>
http://www.google.com.au/imgres?imgurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/ceroplastes%2520janeirensis.jpg&imgrefurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/especies.htm&h75&wX5&sz &tbnid=_YVaaSX-GB2bDM:&tbnh‡&tbnw5&prev=/images%3Fq%3Dceroplastes&hl=en&usg=__40Yg3Tm8_QVW4fN_S6ol-31yu4c=&ei=I4zVS9LOE4ro7APJ_vS0Dw&sa=X&oi=image_result&resnum=4&ct=image&ved AwQ9QEwAw
Some more to ponder. Could be gumtree scale
http://images.google.com.au/images?um=1&hl=en&safe=off&imgtbs=s&tbs=isch:1&q=eriococcus+site:au&sa=N&start=0&ndsp
Posted by FarmI on April 27, 2010, 5:46 am
>>
>>> Does anyone have any idea what these things might be please?
>>
>> Answering my own question here for those who might be interested. I did
>> a google and was stunned at how many varieties of scales there are and
>> how hard I had to hunt to find anything like it. I think the one we have
>> is an armoured scale and the one that looks most like it is called
>> ceroplastes janeirensis:
>>
http://www.google.com.au/imgres?imgurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/ceroplastes%2520janeirensis.jpg&imgrefurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/especies.htm&h75&wX5&sz &tbnid=_YVaaSX-GB2bDM:&tbnh‡&tbnw5&prev=/images%3Fq%3Dceroplastes&hl=en&usg=__40Yg3Tm8_QVW4fN_S6ol-31yu4c=&ei=I4zVS9LOE4ro7APJ_vS0Dw&sa=X&oi=image_result&resnum=4&ct=image&ved AwQ9QEwAw
>>
> Some more to ponder. Could be gumtree scale
>
http://images.google.com.au/images?um=1&hl=en&safe=off&imgtbs=s&tbs=isch:1&q=eriococcus+site:au&sa=N&start=0&ndsp
They are certainly a similar shape to the bugs we have but not quite the
right colour or with the quite destinctive black spot.
Posted by atec7 7 on April 27, 2010, 1:45 am
FarmI wrote:
>
>> Does anyone have any idea what these things might be please?
>
> Answering my own question here for those who might be interested. I did a
> google and was stunned at how many varieties of scales there are and how
> hard I had to hunt to find anything like it. I think the one we have is an
> armoured scale and the one that looks most like it is called ceroplastes
> janeirensis:
>
http://www.google.com.au/imgres?imgurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/ceroplastes%2520janeirensis.jpg&imgrefurl=http://www.ufscar.br/~debe/coccoidea/fotos/coccidae/especies.htm&h75&wX5&sz &tbnid=_YVaaSX-GB2bDM:&tbnh‡&tbnw5&prev=/images%3Fq%3Dceroplastes&hl=en&usg=__40Yg3Tm8_QVW4fN_S6ol-31yu4c=&ei=I4zVS9LOE4ro7APJ_vS0Dw&sa=X&oi=image_result&resnum=4&ct=image&ved AwQ9QEwAw
>
>
What happens when you pour soapy water on them ?
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