page_title: Aceria
hierarchical_section_title: Aceria
caption_attribution_description: English: Eriophyidae gall mite, Aceria fraxini. Size: Less than 2mm. Rocky Gap State Park, Allegany County, Maryland, USA. https://bugguide.net/node/view/392741
context_page_description: Aceria is a genus of mites belonging to the family Eriophyidae, the gall mites. These tiny animals are parasites of plants. Several species can cause blistering and galls, including erineum galls. A few are economically significant pests, while others are useful as agents of biological pest control of invasive plants such as rush skeletonweed, creeping thistle, and field bindweed.
  There are over 900 species in this genus.
context_section_description: Aceria is a genus of mites belonging to the family Eriophyidae, the gall mites. These tiny animals are parasites of plants. Several species can cause blistering and galls, including erineum galls. A few are economically significant pests, while others are useful as agents of biological pest control of invasive plants such as rush skeletonweed (Chondrilla juncea), creeping thistle (Cirsium arvense), and field bindweed (Convolvulus arvensis).
  There are over 900 species in this genus.
caption: Aceria fraxini
exif: {"Image Make": "Canon", "Image Model": "Canon PowerShot S3 IS", "Image Orientation": "Horizontal (normal)", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2010:04:30 08:20:21", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "186", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "180", "Thumbnail YResolution": "180", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "2948", "Thumbnail JPEGInterchangeFormatLength": "5498", "EXIF ExposureTime": "1/60", "EXIF FNumber": "8", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2010:04:30 08:20:21", "EXIF DateTimeDigitized": "2010:04:30 08:20:21", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "5", "EXIF ShutterSpeedValue": "189/32", "EXIF ApertureValue": "6", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "23/8", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash fired, compulsory flash mode", "EXIF FocalLength": "6", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2816", "EXIF ExifImageLength": "2112", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "2816", "Interoperability RelatedImageLength": "2112", "EXIF InteroperabilityOffset": "2774", "EXIF FocalPlaneXResolution": "112640/9", "EXIF FocalPlaneYResolution": "2112000/169", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF SceneCaptureType": "Standard", "EXIF OffsetSchema": "2"}