page_title: Cydalima perspectalis
section_title: Natural regulation or predation
hierarchical_section_title: Cydalima perspectalis / Natural regulation or predation
caption_attribution_description: Français&#160;: Frelon asiatique (Vespa velutina) en recherche de larves de pyrale du buis sur un buisson de buis infesté. English: Asian hornet (Vespa velutina) hunting for box-tree moth (cydalima perspectalis) larvae on an infested box-tree bush.
context_page_description: Cydalima perspectalis or the box tree moth is a species of moth of the family Crambidae. The species was first described by the English entomologist, Francis Walker, in 1859. The box tree moth is native to Japan, China, Taiwan, Korea, far-east Russia and India. It has invaded Europe; first recorded in Germany in 2006, then Switzerland and the Netherlands in 2007, Great Britain in 2008, France and Austria in 2009, Hungary in 2011, then Romania, Spain and Turkey. It is been seen in Slovakia, Belgium and Croatia,
  It was during preparations for the 2014 Winter Olympics in 2012, that it was introduced from Italy to Sochi, European Russia, with the planting stock of Buxus sempervirens. The following year it defoliated Buxus colchica in large quantities. It was recorded in Ontario, Canada in August 2018.
context_section_description: In the area of origin (Asia) natural regulation occurs, as witnessed by the non-destructive behavior of C. perspectalis. In the area of Europe where the moth has been introduced, the damage is very serious because natural regulation does not occur at a significant level. However, in European areas where the Asian hornet (Vespa velutina) is present prior to the introduction of C. perspectalis, some degree of predation by the wasp is observed (not confirmed by scientific and clear results). This is namely in the south-west of France, the first place where V. velutina was introduced to Europe in 2004 (C. perspectalis invaded this area in 2012). V. velutina is able to capture small larvae, and larvae preparing for the nymphosis in their cocoon. Where V. velutina has been introduced this causes other problems as it preys on honey bees and European honey bees are more vulnerable than their Asian counterparts.
  Further research is conducted for the suitability of C. perspectalis for parasitoid species, such as the tachinid Exorista larvarum.
caption: Vespa velutina (Asian predatory wasp) in active search of Cydalima perspectalis larvae on an infested box-tree bush.
exif: {"Image Make": "Panasonic", "Image Model": "DMC-FZ30", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "GIMP 2.6.11", "Image DateTime": "2014:09:20 11:24:05", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "422", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 50, 53, 48, 0, 0, 14, 0, 1, 0, 22, 0, ... ]", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail Orientation": "Horizontal (normal)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "6802", "Thumbnail JPEGInterchangeFormatLength": "10786", "Thumbnail YCbCrPositioning": "Co-sited", "EXIF ExposureTime": "1/30", "EXIF FNumber": "16/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "125", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2014:09:19 08:52:57", "EXIF DateTimeDigitized": "2014:09:19 08:52:57", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "15", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "1029", "EXIF ExifImageLength": "894", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "6654", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "0", "EXIF FocalLengthIn35mmFilm": "71", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "Low gain up", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}