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ladybird


ladybird
Photo Information
Copyright: christine cavalli (crycry) Silver Note Writer [C: 7 W: 0 N: 11] (79)
Genre: Animals
Medium: Color
Date Taken: 2005-05-01
Categories: Insects
Camera: Canon IXUS i
Exposure: f/5.6, 1/250 seconds
More Photo Info: [view]
Photo Version: Original Version, Workshop
Date Submitted: 2005-09-13 14:37
Viewed: 4034
Points: 4
[Note Guidelines] Photographer's Note
I found this ladyBird in the "Jardin des plantes" in Paris , on a forget-me-not flower.
I lightened the picture + sharpened the head
+ resize

here is a little speech on the Sevenspotted ladybird :
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Coccinella septempunctata
(Coleoptera: Coccinellidae)
Sevenspotted Lady Beetle
The sevenspotted lady beetle, repeatedly introduced to North America from Europe for the biological control of aphids, was established in the early 1970s in New Jersey, apparently from an accidental introduction. It has since spread naturally or been introduced to many northeastern and north central states. C. septempunctata may be a more effective predator than some native lady beetle species, displacing them in some areas.



Appearance
Comparatively large (7-8 mm) with a white or pale spot on either side of the head. The body is oval, and has a domed shape. The spot pattern is usually 1-4-2, black on the orange or red forewings. Lady beetle larvae are dark and alligator-like with three pairs of prominent legs, growing to 7-8 mm in length. Eggs are spindle shaped and small, about 1 mm long.

Habitat (Crops)
Aphid infested crops, including potatoes, legumes, sweet corn, alfalfa, wheat, sorghum, and pecans.

Pests Attacked
Reported prey include pea, cowpea, green peach, potato, corn leaf, melon aphids, and greenbug.

Life Cycle
Adults overwinter in protected sites near the fields where they fed and reproduced. In spring, emerging beetles feed on aphids before laying eggs. Females may lay from 200 to more than 1,000 eggs over a one to three month period commencing in spring or early summer. Eggs are usually deposited near prey such as aphids, often in small clusters in protected sites on leaves and stems. The eggs are small (about 1 mm) and spindle-shaped.

C. septempunctata larvae grow from about 1 mm to 4-7 mm in length over a 10 to 30 day period depending on the supply of aphids. Large larvae may travel up to 12 m in search of prey. A second generation may appear about a month later. The pupal stage may last from three to 12 days depending on the temperature.

In the northeastern United States, there are one to two generations per year before the adults enter winter hibernation. Development from egg to adult may take only two to three weeks, and adults, most abundant in mid- to late summer, live for weeks or months, depending on the location, availability of prey, and time of year.

Conservation
C. septempunctata is spreading to new areas each season. Conservation can best be accomplished by following integrated pest management guidelines as outlined in the tutorial of this guide.

Pesticide Susceptibility
Tolerance to some pesticides at recommended application rates is likely. Overwintering adults may be less susceptible than active adults and larvae.


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Critiques [Translate]

Nice shot Christine, good macro, I like the details, sharpness and DOF. Good work! Thanks for sharing

Christine,
La composition est sympa, mais beaucoup de 'bruit' vient perturber la lecture ce la photo. Essaye un soft tel que NoiseNinja ou Neatimage pour le réduire. Tu devrais aussi essayer de saturer le rouge pour faire ressortir ta Lady!
TFS, Laurent

Nice shot. The composition is excellent.

The focus is a tad soft, but it is still a good shot

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