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Brown Ambrosia Aphid Uroleucon rudbeckiae Hemiptera: Aphididae On Mulefat (Baccharis salicifolia) at San Joaquin Freshwater Marsh, Irvine, Orange County, CA. 11/18/06 Species identified by Nick Nisson, County Entomologist, Orange County |
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Those below identified only to genus Uroleucon | |
Fullerton Arboretum, Fullerton, Orange County, CA. 11-18-05. © Ron Hemberger |
Fullerton Arboretum, Fullerton, Orange County, CA. 11-18-05. © Ron Hemberger |
Fullerton Arboretum, Fullerton, Orange County, CA. 11-18-05. © Ron Hemberger |
On Parthenium hysterophorus, San Diego Creek Channel, nr. Audubon Hdqtrs., 7-9-17. © Ron Vanderhoff. |