Category Archives: Insects

EPA approved bee-killing pesticide despite warnings from its own scientsts

Susie Madrak writes in Crooks and Liars, Leaked Document: EPA Scientists Warned Of Bee-Toxic Pesticide. Agency Approved It Anyway.
Clothianidin has already been banned by Germany, France, Italy, and Slovenia for its toxic effects. So why won’t the EPA follow? It probably has something to do with Big Agra, who loves the stuff for treating the corn seed supply.
Ariel Schwartz in Fast Company a reminds us of why this matters
The world honey bee population has plunged in recent years, worrying beekeepers and farmers who know how critical bee pollination is for many crops.
She includes a quote from the study:
Clothianidin’s major risk concern is to nontarget insects (that is, honey bees). Clothianidin is a neonicotinoid insecticide that is both persistent and systemic. Acute toxicity studies to honey bees show that clothianidin is highly toxic on both a contact and an oral basis. Although EFED does not conduct RQ based risk assessments on non-target insects, information from standard tests and field studies, as well as incident reports involving other neonicotinoids insecticides (e.g., imidacloprid) suggest the potential for long-term toxic risk to honey bees and other beneficial insects.

Here’s the leaked document (PDF).

-jsq

Toxic corn and cotton pollute our streams

Steve Connor writes in The Independent 28 Sep 2010 that GM maize ‘has polluted rivers across the United States’:
An insecticide used in genetically modified (GM) crops grown extensively in the United States and other parts of the world has leached into the water of the surrounding environment.

The insecticide is the product of a bacterial gene inserted into GM maize and other cereal crops to protect them against insects such as the European corn borer beetle. Scientists have detected the insecticide in a significant number of streams draining the great corn belt of the American mid-West.

The researchers detected the bacterial protein in the plant detritus that was washed off the corn fields into streams up to 500 metres away. They are not yet able to determine how significant this is in terms of the risk to either human health or the wider environment.

This is the same “gene from the bacterium Bacillus thuriengensis (Bt)” used in Monsanto’s RoundUp Ready cotton and peanuts and soybeans. Since Continue reading →

Mutant Pigweed vs. Glysophate-Resistant Corn, Soybeans, and Cotton

It’s a funny thing about monocultures. They’re highly vulnerable to anything that affects that particular variety. Dr. Mae-Wan Ho writes:
The scene is set at harvest time in Arkansas October 2009. Grim-faced farmers and scientists speak from fields infested with giant pigweed plants that can withstand as much glyphosate herbicide as you can afford to douse on them. One farmer spent US$0.5 million in three months trying to clear the monster weeds in vain; they stop combine harvesters and break hand tools. Already, an estimated one million acres of soybean and cotton crops in Arkansas have become infested.

The palmer amaranth or palmer pigweed is the most dreaded weed. It can grow 7-8 feet tall, withstand withering heat and prolonged droughts, produce thousands of seeds and has a root system that drains nutrients away from crops. If left unchecked, it would take over a field in a year.

Meanwhile in North Carolina Perquimans County, farmer and extension worker Paul Smith has just found the offending weed in his field [3], and he too, will have to hire a migrant crew to remove the weed by hand.

Here’s the good news: Continue reading →

Glysophate (Monsanto’s RoundUp) Causes Birth Defects: Argentine Scientist

carrasco.jpg According to Americas Program Report:
A study released by an Argentine scientist earlier this year reports that glyphosate, patented by Monsanto under the name “Round Up,” causes birth defects when applied in doses much lower than what is commonly used in soy fields.

The study was directed by a leading embryologist, Dr. Andres Carrasco, a professor and researcher at the University of Buenos Aires. In his office in the nation’s top medical school, Dr. Carrasco shows me the results of the study, pulling out photos of birth defects in the embryos of frog amphibians exposed to glyphosate. The frog embryos grown in petri dishes in the photos looked like something from a futuristic horror film, creatures with visible defects—one eye the size of the head, spinal cord deformations, and kidneys that are not fully developed.

“We injected the amphibian embryo cells with glyphosate diluted to a concentration 1,500 times [less] than what is used commercially and we allowed the amphibians to grow in strictly controlled conditions.” Dr. Carrasco reports that the embryos survived from a fertilized egg state until the tadpole stage, but developed obvious defects which would compromise their ability to live in their normal habitats.

Why should Argentina care? Continue reading →