Despite progress, European corn borers
still cause an estimated $400 million loss each year.
previously treated European corn borer
infestations with insecticides
Initially, "we didn't know what the compounds were--only that new analytes on the gas chromatograph kept appearing as sharp peaks when European corn borers
fed on the stalks," recalls Schmelz.
2] screen to search for resistance alleles to Bacillus thuringiensis toxin in European corn borer
The report added: "The European corn borer
is the main corn pest in central and especially in southern Europe due to its Mediterranean climate.
It resists the European corn borer
beetle, some moth pests, and withstands the herbicide glufosinate-ammonium.
European corn borer
(Ostrinia nubilalis Hubner) numbers have been failing over the last three years, possibly due to wet spring seasons.
Or perhaps the bacterial insecticide designed to kill the European corn borer
could poison other organisms, causing unknown effects on the ecosystem.
One sample contained a commonly-inserted gene that prompts the plant to produce a poison effective against the European corn borer
, a pest that can harm crops.
For example, the wormy European corn borer
(Ostrinia nubilalis) destroys over $1 billion worth of corn crops annually.
is toxic largely to destructive caterpillars such as the European corn borer
and the cotton bollworm; it is not harmful to birds, fish, mammals, or people.
Bt corn, for instance, contains a gene for bacteria, making it toxic to the pesky European corn borer
, but it may also be killing Monarch butterflies.
A large percentage of the US corn exports to Mexico originate in the Midwest, where many farmers use seeds that have been genetically modified to produce a natural pesticide to repel the European corn borer
In light of the interest in the effects of Bt-corn on insecticide use and European corn borer
(ECB) management, I compiled official USDA data on insecticide use on corn for 1971, 1982, 1991, 1995, 1998.
The genetically engineered maize, known as Bt-corn, is fitted with genes from a bacterium which pro-duce a substance poisonous to the European corn borer