File:Beauveria victims.jpg
![File:Beauveria victims.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Beauveria_victims.jpg/800px-Beauveria_victims.jpg?20231030170819)
Original file (5,451 × 3,634 pixels, file size: 20.39 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionBeauveria victims.jpg |
English: Geden works to find chemical insecticide alternatives to manage house fly populations. Here he is studying the use of fungal pathogens combined with artificial sweeteners. The sweetener attracts the flies and is lethal to them as well. Unlike sugar, the sweetener does not give them energy, just indigestion resulting in death by dehydration. At the same time, the fly is inoculated with fungal spores of a pathogen that will also kill them, and their cadavers will produce a new crop of spores that are spread by contact. Neither the sweetener nor the pathogen can harm humans.
House and stable flies are major pests of animal agriculture in the US and throughout the world. Management of these flies using insecticides can be problematic because the flies have developed resistance to many of the available products. The growing market for organic products creates additional demands for alternatives to chemical insecticides. Although their mode of action is not known, the artificial sweeteners xylitol and erythritol are toxic to adult flies of several species. Scientists at Northern Illinois University and ARS evaluated the effect of these sweeteners on the larvae of house flies and stable flies. These sweeteners appear to have potential as an inexpensive way to control flies without using conventional insecticides. |
Date | |
Source | https://www.flickr.com/photos/usdagov/51015791735/ |
Author | U.S. Department of Agriculture |
Licensing
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This image was originally posted to Flickr by USDAgov at https://flickr.com/photos/41284017@N08/51015791735. It was reviewed on 30 October 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
30 October 2023
Public domainPublic domainfalsefalse |
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This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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current | 17:08, 30 October 2023 | ![]() | 5,451 × 3,634 (20.39 MB) | Юрий Д.К. (talk | contribs) | Uploaded a work by U.S. Department of Agriculture from https://www.flickr.com/photos/usdagov/51015791735/ with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
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Camera manufacturer | NIKON CORPORATION |
Camera model | NIKON D850 |
Author | Lance Cheung |
Exposure time | 1/80 sec (0.0125) |
F-number | f/25 |
ISO speed rating | 1,250 |
Date and time of data generation | 12:33, 24 February 2021 |
Lens focal length | 105 mm |
User comments | USDA MEDIA BY LANCE CHEUNG. |
Label | Approved |
Credit/Provider | USDA Media by Lance Cheung. |
Source | Digital |
Usage terms |
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Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | NIKON D850 Ver.1.11 |
File change date and time | 18:38, 30 March 2021 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 12:33, 24 February 2021 |
APEX shutter speed | 6.321928 |
APEX aperture | 9.287712 |
APEX exposure bias | 0 |
Maximum land aperture | 4.4 APEX (f/4.59) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, compulsory flash firing |
DateTimeOriginal subseconds | 24 |
DateTimeDigitized subseconds | 24 |
Color space | Uncalibrated |
Focal plane X resolution | 2,301.3246154785 |
Focal plane Y resolution | 2,301.3246154785 |
Focal plane resolution unit | 3 |
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 | Manual exposure |
White balance | Manual white balance |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 3014799 |
Lens used | 105.0 mm f/2.8 |
Rating (out of 5) | 5 |
Date metadata was last modified | 13:58, 30 March 2021 |
Unique ID of original document | F206319B502D6718E82DEBE6D5135F35 |
Copyright status | Copyright status not set |
Keywords |
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Contact information | lance.cheung@usda.gov
www.flickr.com/photos/usdagov 1400 Independence Avenue, SW Washington, District of Columbia, 202150 USA |
IIM version | 4 |