News tagged with aphid populations
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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Scientists hope tiny insect can help save soybeans
(AP) -- An insect no bigger than a comma is being studied as a natural predator that farmers could use instead of chemicals to protect the nation's soybean crop from aphids.
Jul 09, 2009 |
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Search results for aphid populations
Increasing predator-friendly land can help farmers reduce costs
Having natural habitat in farming areas that supports ladybugs could help increase their abundance in crops where they control pests and help farmers reduce their costs, says a Michigan State University study.
May 11, 2012 |
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New tool for tracking a voracious pest
Since it first appeared in Texas in 1986, the Russian wheat aphid has cost U.S. wheat growers an estimated $200 million each year. But U.S. Department of Agriculture (USDA) scientists have developed a new ...
May 09, 2012 |
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Reducing insecticide use by identifying disease-carrying aphids
In work that could cut back on insecticide use, U.S. Department of Agriculture (USDA) scientists have found a way to distinguish aphids that spread plant viruses from those that do not.
Apr 03, 2012 |
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Warm winters may be nice for humans but not so much for butterflies
(PhysOrg.com) -- It was a relatively inexpensive winter for heating in central North America, with mild temperatures reducing the need to warm our houses, but the mild, fluctuating temperatures will cause ...
Apr 02, 2012 |
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Invasive alien predator causes rapid declines of European ladybirds
A new study provides compelling evidence that the arrival of the invasive non-native harlequin ladybird to mainland Europe and subsequent spread has led to a rapid decline in historically-widespread species ...
Feb 07, 2012 |
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High grasshopper populations require precautions for fall and winter crops
Grasshopper populations increased dramatically in Montana from 2007 to 2010, from one million acres with more than 15 grasshoppers per square yard in 2007, to 17 million acres with more than 15 grasshoppers per square yard ...
Sep 08, 2011 |
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Soybean aphids starting to increase
The increase in soybean aphid numbers means producers should step up scouting efforts, but they also should take caution to avoid unnecessary spraying.
Aug 04, 2011 |
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Parasites help reveal new ecological rules
Scientists at UC Santa Barbara and other institutions say their new research is expected to profoundly affect the field of ecology and can assist the management of ecosystems, including forests, lakes, and ...
Jul 21, 2011 |
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Fewer aphids in organic crop fields
Farmers who spray insecticides against aphids as a preventative measure only achieve a short-term effect with this method. In the long term, their fields will end up with even more aphids than untreated fields. This has been ...
Jul 13, 2011 |
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Freefall -- aphids' survival strategy
As soon as aphids feeding on a plant sense the heat and humidity in a mammal's breath, they drop to safety before they are inadvertently ingested together with the plant the animal is feeding on. These findings by Moshe Gish ...
Jul 12, 2011 |
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List of search results for aphid populations
