[MAIPC] Can anyone tell me who this is?

[Ross Campbell]

On Thu, Jun 4, 2020 at 8:34 PM Ross Campbell <rosscampbell728 at gmail.com>
wrote:

> I took these pics today in Silver Spring MD near Sligo Creek Park. This is
> second or third time I have seen what I assume to be aphids on GM this
> spring.
>
> Ross Campbell
> Montgomery County Weed Warrior
>
> On Thu, Jun 4, 2020 at 12:46 PM Deborah Barber <DBarber at tnc.org> wrote:
>
>> Do these have legs?  Can they be knocked off, or do they appear to be
>> part of the plant (which would suggest a gall)? These remind me
>> (color,size, shape) of what I’ve been seeing that I think are aphid
>> mummies. https://extension.umd.edu/hgic/topics/aphid-parasitoids  The
>> ones I saw in April seemed to still be occupied but recent ones are broken
>> and hollow, suggesting the wasps have emerged.  I’ve suggested aphidius on
>> several iNaturalist observations
>> <https://www.inaturalist.org/observations?place_id=any&subview=table&taxon_id=250247>
>> I’ve made but people are not exactly lining up to confirm any aphidius
>> ID’s.  Also…I’ve never noticed aphids on the undersides of garlic mustard
>> leaves?
>>
>>
>>
>> *Deborah Barber*
>>
>> * Director of Land Management              *dbarber at tnc.org
>> 240.630.7042 (Phone)
>> nature.org/MarylandDC
>>
>> <https://www.google.com/maps/search/425+Barlow+Place+%0D%0A+Suite+100+%0D%0A+Bethesda,+MD+20814?entry=gmail&source=g>
>> <https://www.google.com/maps/search/425+Barlow+Place+%0D%0A+Suite+100+%0D%0A+Bethesda,+MD+20814?entry=gmail&source=g>
>>
>> *               The Nature Conservancy*
>> *               Maryland/DC Chapter*
>>
>>                425 Barlow Place
>> <https://www.google.com/maps/search/425+Barlow+Place+%0D%0A+Suite+100+%0D%0A+Bethesda,+MD+20814?entry=gmail&source=g>
>>
>>                Suite 100
>> <https://www.google.com/maps/search/425+Barlow+Place+%0D%0A+Suite+100+%0D%0A+Bethesda,+MD+20814?entry=gmail&source=g>
>>
>>                Bethesda, MD 20814
>> <https://www.google.com/maps/search/425+Barlow+Place+%0D%0A+Suite+100+%0D%0A+Bethesda,+MD+20814?entry=gmail&source=g>
>>
>>
>>
>>
>>
>> *At TNC we work flexibly, so while it suits me to email now, I don’t
>> anticipate a response outside your normal hours.*
>>
>>
>>
>>
>>
>> *From:* MAIPC <maipc-bounces at lists.maipc.org> *On Behalf Of *MARGARET L
>> CHATHAM
>> *Sent:* Thursday, June 04, 2020 12:18 PM
>> *To:* MAIPC at lists.maipc.org
>> *Subject:* [MAIPC] Can anyone tell me who this is?
>>
>>
>>
>> Found these on a number of garlic mustard leaves and siliques. The leaves
>> showed no damage on the upper surfaces. I couldn’t see any exit holes on
>> many of these, but they were crushable and appeared unoccupied.
>>
>> Thanks for any info.
>>
>> Margaret
>>
>>
>>
>> _______________________________________________
>> MAIPC mailing list
>> MAIPC at lists.maipc.org
>> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>>
>
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