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Aphids


Aphids
Photo Information
Copyright: Tim Inman (tinman) Gold Star Critiquer/Gold Note Writer [C: 242 W: 7 N: 458] (2663)
Genre: Plants
Medium: Color
Date Taken: 2005-04-09
Categories: Insects
Camera: Canon EOS 20D, Canon Macro EF 100mm F2.8 USM, SanDisk Ultra-II 1Gb, Hoya UV Filter
Exposure: f/14.0, 1/125 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2005-04-26 5:08
Viewed: 3938
Points: 15
[Note Guidelines] Photographer's Note
Aphids

Aphids are small soft-bodied insects, (1/16-1/8 inch long). They are one of the most common pest groups of ornamental plants.

Aphids feed in colonies. They have plump, pear-shaped bodies and two tubes, or cornicles, which project like exhaust pipes from their abdomens. These cornicles apparently are the ducts of glands that produce alarm odours. Aphids may be winged or wingless and colonies often have both forms. They range in colour from green to brown, red, black or purple. Some species may even have different colour forms in the same colony. Most have the soft exoskeleton exposed, but some species produce waxy, cottony strands which cover the body. These are often called woolly aphids. These small insects are masters of reproduction and are often found in great numbers on stems or leaves. Some species even feed on the roots of plants.

There are many species of aphids, and they feed on all types of vegetation. The white pine aphid feeds on the bark of twigs and branches of Eastern white pine. Heavy aphid infestations can seriously weaken small trees.

Aphid colonies may be found on young leaves, new succulent shoots, and twigs or branches. Many vegetables and fruit trees, as well as ornamental plants, are attacked. This species is the green apple aphid.

Aphid feeding often causes leaves to curl and become deformed. Once this happens, control is very difficult because aphids inside the curled leaves are protected from contact with the insecticide. Some aphids are important vectors of plant diseases.

Aphids excrete a sugary waste produce called honeydew. Ants, bees, and wasps collect honeydew for food. Black and brown fungi, appropriately called sooty molds, cover leaves and other objects below aphid colonies where honeydew collects. Sooty mold problems can be prevented by controlling the resident aphids. A variety of insecticides are registered for aphid control.
Some aphids produce a protective coat of white waxy filaments. Woolly alder aphids feed and reproduce on silver maple in spring and early summer, then produce winged forms which migrate to alder to start new colonies. While not particularly injurious to either of its hosts, this aphid can become a nuisance because its white, woolly threads accumulate under heavily infested trees.
Taken in my front garden recently - handheld shot standing in the flower bed and twisting to get to the bud. This shot I decided to crop in tight to show you the detail on the aphid. I will post another later of the bud itself with the aphids all over it.

Cropped tight on the bud, then resized to 600x800 format, applied +5 contrast and -3 brightness, then ran through the high pass filter at 20%, framed and posted.

Comments most welcome. Thanks. Tim

AndyB, red45, Runnerduck, naki, gerhardt has marked this note useful
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Critiques [Translate]

  • Great 
  • AndyB Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 1366 W: 32 N: 1351] (3982)
  • [2005-04-26 5:52]
  • [+]

Where are the ladybugs when you need 'em!
A nice capture and very good detail of these tiny critters.
Good diagonal composition.
Very well done.

  • Great 
  • red45 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2636 W: 74 N: 9091] (31094)
  • [2005-04-26 6:02]
  • [+]

Agree with Andy! Few hungry Ladybugs should help those Aphids find their destination :-) I don't like those annoying insects but your macro presented aphids very well. Detaliled and sharp, note also very interesting!

  • Great 
  • puffy Gold Star Critiquer/Gold Note Writer [C: 289 W: 0 N: 339] (1351)
  • [2005-04-26 6:05]
  • [+]

Look like an army of them are trying to attack your plant! Agree with Andy and Greg .. get few hungry ladybugs to sort them out.
About the photo. Good details and composition, nice shot! Thanks for sharing.

  • Great 
  • ddg Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 867 W: 24 N: 1008] (5507)
  • [2005-04-26 8:59]
  • [+]

Belle colonie de pucerons, ces photos de petites bestioles ne sont pas faciles à réaliser. J'en sais quelques chose avec les acariens !!Félicitations Tim et merci de partager.Didier.

Evil little critters. A great macro shot, hope you had a huge supply of ladybirds to sort them out after you had your lot!
Great detail on this macro, well done and thanks for posting.

Great macro Tim.
Colorfull with very good sharpness and very good details - Where is the lady bug or the ant?
Very good job.
WEll done

  • Great 
  • naki Gold Star Critiquer/Silver Workshop Editor [C: 382 W: 27 N: 5] (40)
  • [2005-04-26 15:38]
  • [+]

Very good macro Tim. Fine details in such magnification. Very good colors and a nice composition.
Great note too.
Well done and thanks for sharing.

  •      
  • gerhardt Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1936 W: 244 N: 4106] (11620)
  • [2005-04-26 17:59]

WOW Tim, impressive macro work here. I am not good with the critique of the "film" work. This digital is much better. Excellent exposure and details. Strong diagonal. Very nice. Great shot.

PT.

Interesting composition, but it looks like there is nothing in focus :-((
TFS.

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