File:A rest in the green.jpg
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Summary edit
DescriptionA rest in the green.jpg |
English: The insect of the photo, Cacopsylla pruni is the natural vector of the phytoplasma, European stone fruit yellows phytoplasma (ESFY), which causes the yellow rot of the stone fruit.
Phytoplasma transmission occurs through the insect that feeds by sucking the phloem sap of the Prunus spp plants. Cacopsylla pruni takes phytoplasma during feeding bites on infected plants, becoming in turn infectious a few weeks after acquisition. C. pruni makes only one generation a year and winters as an adult. At the end of winter the re-immigrant adults go to the primary host (preferably blackthorn) on which they lay the eggs of the new generation. The juvenile forms develop in about three weeks to then give rise to the adults of the year who migrate to the wintering sites. The juvenile forms that feed on an infected host, become in their turn already infectious, but it seems that they are mainly re-immigrant adults at the end of winter to have an important role in the epidemiology of the disease. (Macrophotography of the insect, insect size 4 mm.) |
Date | |
Source | Own work |
Author | Alberto Loschi |
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This image was uploaded as part of Wiki Science Competition 2019. |
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current | 15:11, 12 December 2019 | 4,724 × 2,362 (649 KB) | Visma21 (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D7000 |
Exposure time | 1/320 sec (0.003125) |
F-number | f/5 |
ISO speed rating | 100 |
Date and time of data generation | 23:42, 7 June 2012 |
Lens focal length | 105 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Photos 1.0.1 |
File change date and time | 23:42, 7 June 2012 |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 23:42, 7 June 2012 |
Meaning of each component |
|
Image compression mode | 2 |
APEX exposure bias | 0 |
Maximum land aperture | 4.6 APEX (f/4.92) |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 20 |
DateTimeOriginal subseconds | 20 |
DateTimeDigitized subseconds | 20 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 157 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |