The SMH has an article on a study linking pesticide use to ADHD - Pesticide link to hyperactivity: study.

Children exposed to higher levels of pesticide found on commercially grown fruit and vegetables in the United States were more likely to have attention deficit/hyper-activity disorder (ADHD), according to a study published on Monday.

Researchers in the United States and Canada studied data from 1139 children aged between eight and 15 and found children with higher residue levels of pesticides known as organophosphates were roughly twice as likely to have ADHD, the study in the journal Pediatrics found.

"The present study adds to the accumulating evidence linking higher levels of pesticide exposure to adverse developmental outcomes," the study concluded.

Roughly 40 organophosphate pesticides are registered with the US Environmental Protection Agency for use in the United States, and about 33.11 million kilograms of the pesticides were used in agricultural and residential settings in 2001, figures cited in the study said.

Although residential pesticide use is common, the National Academy of Sciences found that the major source of exposure for infants and children comes through the diet, the study added.

According to a 2008 report cited by the study, detectable levels of pesticides were found in a range of vegetables. A sample of produce tested found 28 per cent of frozen blueberries, 20 per cent of celery and 25 per cent of strawberries contained traces of one organophospate, known as malathion.

Other types of pesticides were found in 27 per cent of green beans, 17 per cent of peaches and 8 per cent of broccoli.

Grist has an article on "superweeds" that are resistant to pesticides - Chemical imbalance: NYT’s superweeds coverage is welcome but myopic.

It's a happy day when the New York Times treads some of Grist's well-worn paths. This time, it's about how overuse of Monsanto's Roundup herbicide has given rise to "superweeds" and an exhausting chemical treadmill:

Just as the heavy use of antibiotics contributed to the rise of drug-resistant supergerms, American farmers' near-ubiquitous use of the weedkiller Roundup has led to the rapid growth of tenacious new superweeds.

To fight them, Mr. Anderson and farmers throughout the East, Midwest and South are being forced to spray fields with more toxic herbicides, pull weeds by hand and return to more labor-intensive methods like regular plowing.

"We're back to where we were 20 years ago," said Mr. Anderson, who will plow about one-third of his 3,000 acres of soybean fields this spring, more than he has in years. "We're trying to find out what works."

Farm experts say that such efforts could lead to higher food prices, lower crop yields, rising farm costs and more pollution of land and water.

"It is the single largest threat to production agriculture that we have ever seen," said Andrew Wargo III, the president of the Arkansas Association of Conservation Districts.

Grist coverage on the issue of superweeds can be found here, here, here, here and here. Strangely, given that the New York Times Magazine recently did a story about a pair of commodity rice growers who switched over to organic methods for some of these very reasons, the current Times piece omits discussion of any organic or agro-ecological alternatives to chemically intensive agriculture.

Yale Environment 360 has an article on the possible link between pesticides and various animal die-offs (including bee colony collapse disorder) - Behind Mass Die-Offs, Pesticides Lurk as Culprit.

Ever since Olga Owen Huckins shared the spectacle of a yard full of dead, DDT-poisoned birds with her friend Rachel Carson in 1958, scientists have been tracking the dramatic toll on wildlife of a planet awash in pesticides. Today, drips and puffs of pesticides surround us everywhere, contaminating 90 percent of the nation’s major rivers and streams, more than 80 percent of sampled fish, and one-third of the nation’s aquifers. According to the U.S. Fish and Wildlife Service, fish and birds that unsuspectingly expose themselves to this chemical soup die by the millions every year.

But as regulators grapple with the lethal dangers of pesticides, scientists are discovering that even seemingly benign, low-level exposures to pesticides can affect wild creatures in subtle, unexpected ways — and could even be contributing to a rash of new epidemics pushing species to the brink of extinction.

In the past dozen years, no fewer than three never-before-seen diseases have decimated populations of amphibians, bees, and — most recently — bats. A growing body of evidence indicates that pesticide exposure may be playing an important role in the decline of the first two species, and scientists are investigating whether such exposures may be involved in the deaths of more than 1 million bats in the northeastern United States over the past several years.

White-nose Syndrome, named for the tell-tale white fuzz it leaves on bats’ ears and noses, has killed more than a million bats in the northeastern United States.
For decades, toxicologists have accrued a range of evidence showing that low-level pesticide exposure impairs immune function in wildlife, and have correlated this immune damage to outbreaks of disease. Consumption of pesticide-contaminated herring has been found to impair the immune function of captive seals, for example, and may have contributed to an outbreak of distemper that killed over 18,000 harbor seals along the northern European coast in 1988. Exposure to PCBs has been correlated with higher levels of roundworm infection in Arctic seagulls. The popular herbicide atrazine has been shown to make tadpoles more susceptible to parasitic worms.

“Generation A” (the term comes from a Kurt Vonnegut quotation) is not a sequel to but rather a thematic wink at Coupland’s first novel, “Generation X” (1991), about young slackers experiencing ­postindustrial fin de siècle ennui and sitting around telling stories. That novel kicked off both Coupland’s career and — to his ire — a global media frenzy and commodification orgy. From the beginning, Coupland’s novels have explored the vertiginous acceleration of culture as it intersects with media and technology, as well as the impact of those forces on a disaffected subgroup of drifters and eco-freaks, teenagers and young adults, dropouts and designers, programmers and cubicle inhabitants, gamers and geeks. All of it is rendered with the paradoxical combination of empathy and irony that marks Coupland’s work. And “Generation A” is no exception.

Narrated by five characters who begin as strangers and come from five different parts of the world, the novel is set in a near future when bees are thought to have become extinct. A global “pollination crisis” results, and “a six-ounce bottle of 2008 Yukon fireweed honey” now fetches some $17,000 at Sotheby’s. Also extinct are heroin addicts, because, of course, “poppies require bees.” Instead, a sinister prescription drug called Solon has filled the gap, treating anxiety by blocking thoughts of the future.