Although maize was originally domesticated in Mexico, the country’s average yield per hectare is 38% below the world’s average. In fact, Mexico imports 30% of its maize from foreign sources to keep up with internal demand.
To combat insect pests, Mexican farmers rely primarily on chemical insecticides. Approximately 3,000 tons of active ingredient are used each year just to manage the fall armyworm (Spodoptera frugiperda), in addition to even more chemicals used to control other pests such as the corn earworm (Helicoverpa zea) and the black cutworm (Agrotis ipsilon). Because of the severity of these pests and the reliance on chemical insecticides, Mexico uses the highest quantity of pesticides per hectare of arable land in North America.
While integrated pest management (IPM) programs — which aim to minimize economic damage and lower environmental and health risks — are widely used in crops such as tomatoes, broccoli, and peppers, IPM is highly uncommon in Mexican maize crops…
The authors found the diversity of growing conditions to be the greatest obstacle for implementing IPM programs for Mexico’s 2 million growers, many of whose fields are only two hectares or less.
Another obstacle, according to the authors, is the lack of insect-resistant maize varieties, such as Bt hybrids. These varieties, which are genetically modified to express proteins from the bacterium Bacillus thuringiensis, are grown on 90 percent of maize fields in the U.S., whose yields per hectare are nearly three times greater than Mexican yields.
“According to our estimates, 3,000 tons of organophosphate active ingredient is sold in Mexico each year to control ONLY fall armyworm, ONLY on corn,” said Professor Urbano Nava-Camberos of the Universidad Juárez del Estado de Durango, and one of the co-authors. “In addition, applications are also made to cutworms, corn rootworms, borers, and corn earworms that do not necessarily coincide with the fall armyworm applications. However, all of these insect pests can be effectively controlled with Bt corn and integrated pest management programs.”
“There are a few solutions that can be immediately implemented to diminish the environmental impact of corn pests, including the use of Bt corn,” added another co-author, crop consultant Guadalupe Pellegaud. “Unfortunately, people who oppose the introduction of this technology in Mexico do not seem to realize that a far greater environmental impact is done by applying more than 3,000 tons of insecticide active ingredient each year.”
The full open-access article, “Maize Pests in Mexico and Challenges for the Adoption of Integrated Pest Management Programs“, is available as a freebie. If you can find your way through a website designed by entomologists.
The office of the Mexican president has been set alight as public anger intensifies over the government’s response to the apparent murder of 43 trainee teachers by a drug gang.
The violence comes after the country’s attorney general caused fury among the public with his throwaway remark about the case.
Jesus Murillo Karam, speaking at a press conference on Friday, fielded questions on the case for an hour, before saying, “Ya me canse” or, “Enough, I’m tired”.
Within hours the phrase was trending on Twitter and other social media sites. It is now being used as a rallying call for those who are demonstrating against the government’s handling of the case…
On Saturday evening what had been peaceful protests in Mexico City turned violent when the National Palace, which houses the office of the president, was set on fire by demonstrators carrying torches.
Protesters had earlier used a metal police barricade as a battering ram to try to enter the building. Police eventually pushed them back, before they breached the doors…
Before the attorney general’s ill-judged attempt to wrap up his conference, he had told the press that suspects had led authorities to rubbish bags that are believed to contain the incinerated remains of the abducted students.
Since the disappearance of the students in September, from a rural college in Guerrero state, Mexicans have reacted with outrage at the government’s response and its inability to fully explain what happened.
The case has proved a focal point for citizens’ anger in a country where almost 100,000 people have died in the past seven years due to organised crime.
This is a long and detailed, painfully accurate article. Not the best intellectual, political fare for a Monday morning. Which is exactly why you should read it.
Corruption, the absence of rule by law, the dominance of neighborhood by neighborhood, provincial, regional rule by gangsters, vicious killers wholly insulated from justice by bought-and-paid-for coppers – this is the stuff of daily life in Mexico. It lies at the core of my personal boycott of our southern neighbor. And, yes, it is also key to my contempt for jingoist, Amerika First Republicans, cruel conservatives who don’t understand commerce and base their definition of economic justice on bigotry.
PHOTOGRAPH BY OMAR TORRES/AFP/GETTY
Every morning, the newspapers in Mexico City announce how many days it has been since forty-three students from the Ayotzinapa Normal School disappeared while in Iguala, Guerrero. On Friday, the number—twenty-eight days—was accompanied by an announcement that the governor of Guerrero state, Ángel Aguirre Rivero, had finally resigned after weeks of outrage over the violence and lawlessness that marked his tenure.
The disappearance of the forty-three has aroused horror, indignation, and protest throughout Mexico and all over the world. An air of sadness, disgust, fear and foreboding hangs over Mexico City, where I live, like the unseasonably cold, gray, drizzly weather we’ve been having. This is usually a festive time of year, with the Day of the Dead holidays approaching, but it’s impossible to feel lighthearted. As one friend put it, the government’s cardboard theatre has fallen away, exposing Mexico’s horrifying truths.
The journalists John Gibler (the author of the book “To Die in Mexico”) and Marcela Turati (who has been reporting on the disappearance in the weekly magazine Proceso and elsewhere) have provided the most complete reports of what happened in Iguala on the night of September 26th. “Scores of uniformed municipal police and a handful of masked men dressed in black shot and killed six people, wounded more than twenty, and rounded up and detained forty-three students in a series of attacks carried out at multiple points and lasting more than three hours,” Gibler wrote to me in an e-mail. “At no point did state police, federal police, or the army intercede. The forty-three students taken into police custody are now ‘disappeared.’ ” On September 27th*, the body of another student turned up. His eyes were torn out and the facial skin was ripped away from his skull: the signature of a Mexican organized-crime assassination.
The Ayotzinapa Normal School trains people to become teachers in the state’s poorest rural schools. The students, who are in their late teens and early twenties, tend to come from poor, indigenous campesino families. They are often the brightest kids from their communities. According to Gibler, six hundred people applied to the class that included the students who disappeared, and only a hundred and forty were accepted. To become a teacher is seen as a step up from the life of a peasant farmer, but also as a way for those chosen to be socially useful in their impoverished communities. When Gibler and Turati went to visit the Ayotzinapa School in early October, only twenty-two students were left. In addition to the forty-three missing classmates, many others had been taken home by frightened parents.
Well written, detailed, the sort of work rarely matched by TV talking heads. And, of course, both the conservative and not-quite-so-conservative American Press is tame as ever on the topic. Even where it’s fashionable to recall we are a nation of immigrants, the specter of Fox News seems to haunt our nation’s editors.
Eastern Asia, Western Asia, Japan, Beringia and even Europe have all been suggested origination points for the earliest humans to enter the Americas because of apparent differences in cranial form between today’s Native Americans and the earliest known Paleoamerican skeletons. Now an international team of researchers has identified a nearly complete Paleoamerican skeleton with Native American DNA that dates close to the time that people first entered the New World…
The skeleton of a teenage girl was found in Hoyo Negro, a deeply submerged chamber in the Sac Actun cave system in the eastern Yucatan Peninsula, Mexico. Alberto Nava Blank and a team of science divers discovered the skeleton along with many extinct animal remains deep inside this inundated cave in 2007. The divers named the girl Naia…
Kennett and Brendan J. Culleton, postdoctoral fellow in anthropology, Penn State, were originally asked to directly date the skeleton. After traditional and well accepted direct-dating methods failed because the bones were mineralized from long emersion in warm salty water within this limestone cave system, they worked closely with colleagues to build a geochronological framework for Naia using a unique combination of techniques to constrain the age of the skeleton to the end of the ice age.
To build the case for a late Pleistocene age they collaborated with Yemane Asmerom and Victor Polyak from the University of New Mexico using global sea level rise data to determine when the cave system, which at the time Naia and the extinct animals entered was dry, filled with water. The site where Naia lies is now 130 feet below sea level and sea level rise would have raised the groundwater level in the cave system and submerged everything between 9,700 and 10,200 years ago. So initial estimates of the latest that animals and humans could have walked into the cave system was 9,700 years ago.
At the same time, the researchers experimented with uranium thorium dating the skeleton directly. Asmerom and Polyak tried to directly date Naia’s teeth using this method, but that also did not work well.
The bones were found deep below today’s ground surface in a collapsed chamber connected to the surface via a web of now flooded tunnels that Naia once walked along to fall to her untimely death. Because the caves are limestone, mineral deposits continued to form while the cave was largely dry. Working with Patricia Beddows, Northwestern University, Chatters noticed accumulations of calcium carbonate — tiny rosettes of calcite deposited by water dripping off the cave roof — which could be accurately dated using the uranium thorium method. Because these drip water deposits formed on top of Naia’s bones, their date must occur after she fell in the cave. The oldest one dated so far is 12,000 years old.
Naia’s tooth enamel was also radiocarbon dated to 12,900 years ago by Kennett’s lab…
Morphologically, Naia does not look like a contemporary Native American, but mitochondrial DNA testing — maternally inherited DNA — carried out by Brian Kemp, Washington State University, and his collaborators shows that she has a D1 haplotype. This is consistent with the hypothesis that her ancestors’ origins were in Beringia, a now partially submerged landmass including parts of Siberia, Alaska and the Yukon. Early humans moved into this area from elsewhere in Asia and remained there for quite some time. During that time they developed a unique haplotype that persists today in Native Americans. Genetically, Paleoamericans have similar attributes as modern Native Americans even if their morphology appears different.
There is so much more that can be determined about paleolithic finds with the aid of modern chemistry and the tools grounded in DNA. Has to make paleontologists a heck of a lot happier about the focus and improved accuracy they can bring to their studies.
Lifetime science students like me really appreciate the difference between sound hypothesis and certified measurement. Even if the increments are centuries. :)
The United States has once again twisted itself into a rhetorical pretzel. As when it threatened military action against Syria if a “red line” was crossed, the Obama administration’s rhetoric about Russia and Ukraine goes far beyond what it will be willing and able to enforce.
Earlier this month, President Obama warned that America would “isolate Russia” if it grabbed more land, and yesterday, he suggested that more sanctions were possible. Likewise, Secretary of State John Kerry said the Group of 7 nations were “prepared to go to the hilt” in order to isolate Russia.
But Washington’s rhetoric is dangerously excessive, for three main reasons: Ukraine is far more important to Vladimir V. Putin than it is to America; it will be hard for the United States and Europe to make good on their threats of crippling sanctions; and other countries could ultimately defang them…
The fundamental problem is that the Obama administration doesn’t want to bear the costs associated with an active foreign policy. That’s understandable. A December Pew poll revealed the lowest level of public support for an active American foreign policy since 1964.
This domestic pressure was on display in Syria. Mr. Obama’s error was not that he backed away from military action and accepted Russia’s proposal to rid Syria of chemical weapons. The mistake was that he drew a red line that would have been more costly to back up than the United States was willing to tolerate. America lost credibility internationally for failing to make good on its threat.
Unfortunately, the Obama administration is repeating this mistake in Ukraine…
“Isolating Russia” as if it were Iran or North Korea isn’t a threat America can feasibly make good on. Just because Mr. Putin is acting like the leader of a rogue state, his country cannot be considered as such. Russia boasts the world’s eighth-largest economy. Given the exposure of American corporations to Russia, there would be serious pushback from the private sector if Mr. Obama tried to relegate Russia to rogue-state status. The Obama administration needs to preach what it will ultimately practice. Otherwise Washington’s credibility will erode further as it walks back its words.
A more hard-line response is not the answer. Mr. Obama was right to rule out the military option; diplomacy is America’s only viable path forward…
The Obama administration should focus on supporting Kiev rather than punishing Moscow. That means using its leverage with Europe to ensure that this support sticks, and that Ukraine’s new government does nothing to provoke an extreme response. This will require an acknowledgment of Russia’s core interests and America’s limitations — and an end to empty threats.
There are about three historic levels to the context of this antagonistic complexity. Most of which is viewed with greater clarity outside the United States than within. Not unusual.
On the longest historic stage, Americans forget we acquired foreign territory much in the same way Albanians did Kosovo, Russians did Crimea. We moved in and colonized economic expansion and then used our [foreign] military might to guarantee the freedom of our colonists to secede. In case you never read a history book, that’s how we got Texas, New Mexico, Arizona, California, Utah and a chunk of Wyoming and Colorado.
Nearer in time, lacking an adjacent border, the US invasion of Afghanistan and Iraq – especially the latter – didn’t have a damned thing to do with protecting our nation. Not on that scale, nothing to do with what we set out to accomplish and failed.
Pretending there is nothing comparable between the secession of Kosovo and the Crimea is patent leather revisionism. The voting population of Kosovo was skewed by incomers as much or more than Crimea – over a shorter period of time. The politics of each differs; but, international codes are cobbled together in an attempt to function independent of local politics. Whether they succeed at it or not.
Felipe – I read your email about switching to Viagra
The US ambassador was scheduled to attend an emergency meeting over spying on Monday morning at France’s foreign ministry in Paris, according to French Foreign Minister Laurent Fabius. The meeting was prompted by an article published by the French daily Le Monde alleging that the US National Security Agency had listened in on millions of French phone calls…
There was no immediate response from Washington regarding the article or the French government’s outrage over the claims.
According to Le Monde’s online article published today, the NSA gathered 70.3 million French phone records between December 10, 2012 and January 8 of this year. The article cited documents obtained from former NSA contractor Edward Snowden and was co-written by Guardian journalist Glenn Greenwald, who originally broke the NSA story…
The Mexican Foreign Ministry also demanded answers from Washington after the publication of a separate article alleging NSA-snooping on Mexico on Sunday. The latest revelations stemmed from an article published by the German newsmagazine Der Spiegel which said the US surveillance program had been spying on Mexico for years…
The Spiegel article said the NSA had hacked into the email of President Felipe Calderon in 2010, citing documents obtained from Edward Snowden.
The revelations of US espionage have angered allied countries. Last month, Brazilian President Dilma Rousseff cancelled a meeting with President Barack Obama in Washington in protest of alleged surveillance on Brazilian citizens and companies.
Last week, Deutsche Telekom announced a plan to shield domestic Internet traffic from foreign spying. The telecommunications giant aims to strengthen data privacy in Germany by preventing it from leaving its borders and opting instead to channel it through domestic servers only.
Typically, the excuse used by conservative apologists or just plain lazy-ass sophists about the NSA/United States wholesale gobbling up of everything digital about your life is “everyone has always done this, nothing new, move along”. Which is hogwash. Quantitative levels of snooping change qualitatively when you go from slipping a spy into a foreign embassy to photograph the new submarine plans – versus vacuuming up every iota of metadata for every citizen of your nation, 24/7.
You might feel more secure deluding yourself with political ennui. That just makes you part of the problem. Individuals of conscience react to the crimes of their own nation as thoroughly as those of “nasty furriners”. The questions come down to principle – and responsibility.
Arrested and too drunk to stand
US authorities say an immigrant suspected of entering the country illegally attempted to make his journey hiding in a shipment of red chile while carrying a bottle of tequila to fortify himself.
US customs and border protection officers working at a New Mexico border checkpoint said the man was discovered on Thursday face down among a commercial load of chile.
Columbus port director Robert Reza said next to the “highly intoxicated” 35-year-old was a bottle of the national liquor.
The man, who authorities described as a Mexican national, told agents that he climbed into the commercial hopper while it was being staged in Mexico. He got into the truckload of chile in hopes of catching a ride to Chicago…
Agents said he got less than 100 metres into New Mexico before he was discovered. He would be sent back over the border, officials said.
Here in New Mexico we actually have an official state question: “Red or green?”
Ours comes down on the side of ripe and the answer is “red”.
A truckload to admire – excepting the drunk passed out
[I don’t know why she likes those silly cat pictures her aunt includes in her emails]
Brazil and Mexico have both demanded an explanation from the US over claims that the National Security Agency (NSA) spied on their presidents…Internet data from Brazilian leader Dilma Rousseff and Mexico’s Enrique Pena Nieto was intercepted, journalist Glenn Greenwald told Brazil’s TV Globo.
Mr Greenwald obtained secret files from US whistle-blower Edward Snowden.
Brazil said data interception would represent an unacceptable violation of sovereignty. Mexico called for a probe.
“You cannot allow… a US agency, or someone that has been hired by the US government, to follow what any Brazilian citizen is doing,” Brazilian Senator Eduardo Suplicy told the BBC’s Newshour programme.
Both the Brazilian and Mexican governments summoned their respective US ambassadors. Mexico requested an “an exhaustive investigation” to determine who may be responsible for the alleged spying on Mr Pena Nieto’s emails before his election last year, the AFP news agency reported.
In July, Brazilian newspaper O Globo reported that the US had seized web traffic and phone calls across the region.
Mr Greenwald, a columnist for the British Guardian newspaper, told TV Globo’s news programme on Sunday – “Fantastico” – that secret documents leaked by Edward Snowden showed how US agents had spied on communications between aides of Brazil’s President Dilma Rousseff.
Brazil’s Justice Minister Jose Eduardo Cardozo said that “if these facts prove to be true, it would be unacceptable and could be called an attack on our country’s sovereignty“.
According to the report, the NSA also used a programme to access all internet content that Ms Rousseff visited online.
The BBC’s Julia Carneiro in Sao Paulo says there is a suspicion in Brazil that the US is spying on its government’s communications because of commercial interests…
The report also alleges that the NSA monitored the communications of Mexican President Enrique Pena Nieto, even before he was elected in July last year.
Mr Greenwald said that a document dating from June 2012 showed that Mr Pena Nieto’s emails were being read.
The cynical among us will show no surprise. After all, what reason might there be to trust the United States other than our Constitution, international treaties and a history of decades of declarations on behalf of liberty. All meaningless in light of our equally-long history of violating those treaties and treating our Constitution only as a document of opportunity to be reckoned with by violation rather than guidance.
Regardless of which of the sleazy parties is in power, btw.
Spices grown in the mist-shrouded Western Ghats here have fueled wars, fortunes and even the discovery of continents, and for thousands of years farmers harvested them in the same traditional ways. Until now.
Science has revealed what ancient kings and sultans never knew: instead of improving health, spices sometimes make people very sick, so Indian government officials are quietly pushing some of the most far-reaching changes ever in the way farmers here pick, dry and thresh their rich bounty.
The United States Food and Drug Administration will soon release a comprehensive analysis that pinpoints imported spices, found in just about every kitchen in the Western world, as a surprisingly potent source of salmonella poisoning.
In a study of more than 20,000 food shipments, the food agency found that nearly 7 percent of spice lots were contaminated with salmonella, twice the average of all other imported foods. Some 15 percent of coriander and 12 percent of oregano and basil shipments were contaminated, with high contamination levels also found in sesame seeds, curry powder and cumin. Four percent of black pepper shipments were contaminated…
Mexico and India had the highest share of contaminated spices. About 14 percent of the samples from Mexico contained salmonella, the study found, a result Mexican officials disputed.
India’s exports were the second-most contaminated, at approximately 9 percent, but India ships nearly four times the amount of spices to the United States that Mexico does, so its contamination problems are particularly worrisome, officials said. Nearly one-quarter of the spices, oils and food colorings used in the United States comes from India…
Westerners are particularly vulnerable to contaminated spices because pepper and other spices are added at the table, so bacterial hitchhikers are consumed live and unharmed. Bacteria do not survive high temperatures, so contaminated spices present fewer problems when added during cooking, as is typical in the cuisine of India and most other Asian countries.
…Sophisticated DNA sequencing of salmonella types is finally allowing food officials to pinpoint spices as a cause of repeated outbreaks, including one in 2010 involving black and red pepper that sickened more than 250 people in 44 states. After a 2009 outbreak linked to white pepper, an inspection found that salmonella had colonized much of the Union City, Calif., spice processing facility at the heart of the outbreak…
One more example of how “tradition” often means unhealthy. Dedication to clean conditions during harvest and processing for market can make all the difference in the world to the safety of consumers – with no loss of flavor or function.
RTFA for lots of anecdotal info on the raising of many spices. Interesting stuff. You can never have too much knowledge about what you eat.