News tagged with aphids
First case of animals making their own carotene
The insects known as aphids can make their own essential nutrients called carotenoids, according to University of Arizona researchers.
Apr 29, 2010 |
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The small insect with a big heart: the 'giving' aphids endangered by their selflessness
One of the founding principles of Darwin's theory is that biological evolution has been shaped by the survival of the fittest. Things, however, are not always that simple as researchers from Royal Holloway, ...
Feb 03, 2010 |
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Rapid evolution within single crop-growing season increases insect pest numbers
New research by scientists at the University of California, Riverside shows that evolution – genetic changes in populations over time – can occur so rapidly in organisms that its impact on population ...
Aug 15, 2011 |
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Color-changing bacterium inside the pea aphid
A bacterium that can live symbiotically inside the pea aphid, Acyrthosiphon pisum, is able to change the insect’s body color from red to green, a RIKEN-led team of molecular entomologists has found. Becaus ...
Jan 07, 2011 |
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Orchid tricks hoverflies: Eastern marsh helleborine mimics aphid alarm pheromones to attract pollinators
Even Darwin was a self-admitted orchid lover. Dictionaries describe orchids as exotic ornamentals. Indeed, these plants – more than 30000 different species are thought to exist – are exotic due their ...
Oct 14, 2010 |
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Aphid immune system aided by friendly bacteria
(PhysOrg.com) -- Conventional thinking says that animal immune systems have evolved to defend against harmful microorganisms, but a new Cornell study examines the role of friendly bacteria in shaping animal ...
Aug 19, 2010 |
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Plants may benefit from aphid warning pheromone
(PhysOrg.com) -- If your building has 10 false fire alarms one morning, it is human nature to ignore it when it goes off for the 11th time.
Aug 06, 2010 |
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Organic pesticides not always 'greener' choice, study finds
Consumers shouldn't assume that, because a product is organic, it's also environmentally friendly.
Jun 22, 2010 |
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Researchers identify new soybean aphid biotype
University of Illinois researchers recently identified a new soybean aphid biotype that can multiply on aphid-resistant soybean varieties. Soybean aphids are the No. 1 insect threat to soybean production in the North Central ...
Mar 29, 2010 |
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Researchers find that rare lady beetles prefer traditional diet
(PhysOrg.com) -- Experts from South Dakota State University and the nearby North Central Agricultural Research Laboratory watched helplessly as a colony of rare, captive lady beetles was lost in 2008, then ...
Mar 19, 2010 |
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Aphid's genome generates exciting questions
The genome of the pea aphid (Acyrthosiphon pisum), sequenced by the International Aphid Genomics Consortium, is published this week in the online open-access journal PLoS Biology. Scientists from more tha ...
Feb 23, 2010 |
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The genetic secrets to jumping the species barrier
Scientists have pinpointed specific mutations that allow a common plant virus to infect new species, according to research published in the March issue of the Journal of General Virology. Understanding the genetics of the ...
Feb 11, 2010 |
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From crickets to whales, animal calls have something in common
(PhysOrg.com) -- Scientists who compare insect chirps with ape calls may look like they are mixing aphids and orangutans, but researchers have found common denominators in the calls of hundreds of species of insects, birds, ...
Jan 05, 2010 |
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Researchers study insecticide-free method for control of soybean aphids
(PhysOrg.com) -- Two Iowa State University researchers are examining a new method of controlling soybean aphids without the use of chemical pesticides. Bryony Bonning, professor of entomology, and Allen Miller, professor of pl ...
Sep 15, 2009 |
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Aphids saved from gruesome death by virus-infected bacteria
The term "beneficial virus" sounds like an oxymoron. But for pea aphids under attack by parasitic wasps, carrying infected bacteria is the difference between life and a slow death, according to new research. ...
Aug 20, 2009 |
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Aphid
Aphids, also known as plant lice and in Britain and the Commonwealth as greenflies, blackflies or whiteflies, (not to be confused with "jumping plant lice" or true whiteflies) are small sap sucking insects, and members of the superfamily Aphidoidea. Aphids are among the most destructive insect pests on cultivated plants in temperate regions. The damage they do to plants has made them enemies of farmers and gardeners the world over, but from a zoological standpoint they are a very successful group of organisms. Their success is in part due to the asexual reproduction capability of some species.
About 4,400 species of 10 families are known. Historically, many fewer families were recognised, as most species were included in the family Aphididae. Around 250 species are serious pests for agriculture and forestry as well as an annoyance for gardeners. They vary in length from 1 to 10 millimetres (0.04 to 0.39 in).
Natural enemies include predatory ladybirds, hoverfly larvae, parasitic wasps, aphid midge larvae, crab spiders, lacewings and entomopathogenic fungi like Lecanicillium lecanii and the Entomophthorales.
For more information about Aphid, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
