Obviously the birds have been busy and for all intents and purposes,
super weeds are now everywhere.
I have posted that we have begun a transition from industrial
agriculture to general organic farming. I expected that this would
proceed over two generations at least. Yet we are now observing what
could well be the death throes of the industrial protocols. There is
no chemical pesticide that can do more than interfere rather briefly
before biology swings back and wins.
The same problem is emerging with chemical nutrification as more and
more is producing less efficiently and with far lower quality. Again
organic methods overcome this and even provides a higher yield of
higher quality crops.
However, it is not a no brainer to switch over. There is a lot of
new knowledge to acquire and a receptive attitude to acquire. Yet I
think that the switch is going to be forced upon us by the what is
developing to be catastrophic failure in the industrial model.
We have already passed through this same crisis with the bees.
Perhaps we really need the lesson once and for all.
Nearly Half of All
US Farms Now Have Superweeds
Tom Philpott
Wed Feb. 6, 2013
Last year's drought
took a big bite out of the two most prodigious US crops, corn and
soy. But it apparently didn't slow down the spread of weeds that have
developed resistance to Monsanto's herbicide Roundup (glyphosate),
used on crops engineered by Monsanto to resist it. More than 70
percent of all the the corn, soy, and cotton grown in the US is
now genetically modified to withstand glyphosate.
Back in 2011, such
weeds were already spreading fast. "Monsanto's 'Superweeds'
Gallop Through Midwest," declared the headline of a post I wrote
then. What's the word you use when an already-galloping horse speeds
up? Because that's what's happening. Let's try this: "Monsanto's
'Superweeds' Stampede Through Midwest."
That pretty much
describes the situation last year, according to a new report from
the agribusiness research consultancy Stratus. Since the 2010
growing season, the group has been polling "thousands of US
farmers" across 31 states about herbicide resistance. Here's
what they found in the 2012 season:
• Nearly half (49
percent) of all US farmers surveyed said they have
glyphosate-resistant weeds on their farm in 2012, up from 34 percent
of farmers in 2011.
• Resistance is still worst in the South. For example, 92 percent of growers in Georgia said they have glyphosate-resistant weeds.
• But the mid-South and Midwest states are catching up. From 2011 to 2012 the acres with resistance almost doubled in Nebraska, Iowa, and Indiana.
• It's spreading at a faster pace each year: Total resistant acres increased by 25 percent in 2011 and 51 percent in 2012.
• And the problem is getting more complicated. More and more farms have at least two resistant species on their farm. In 2010 that was just 12 percent of farms, but two short years later 27 percent had more than one.
So where do farmers
go from here? Well, Monsanto and its peers would like them to try
out "next generation" herbicide-resistant seeds—that is,
crops engineered to resist not just Roundup, but also other, more
toxic herbicides, like 2,4-D and Dicamba. Trouble is, such an
escalation in the chemical war on weeds will likely only lead to
more prolific, and more super, superweeds, along with a sharp
increase in herbicide use. That's the message of a peer-reviewed
2011 paper by a team of Penn State University researchers led by
David A. Mortensen. (I discussed their paper in a post last year.)
And such novel seeds
won't be available in the 2013 growing season anyway. None have made
it through the US Department of Agriculture's registration process.
The USDA was widely expected to award final approval on Dow's
2,4-D/Roundup-resistant corn during the Christmas break, but didn't.
The agency hasn't stated the reason it hasn't decided on the
product, known as Enlist, but the nondecision effectively delays its
introduction until 2014 at the earliest, as Dow acknowledged last
month. Reuters reporter Carey Gillam noted that the USDA' delay
comes amid "opposition from farmers, consumers and public
health officials" to the new product, and that these opponents
have "bombarded Dow and US regulators with an array of
concerns" about it.
So industrial-scale
corn and soy farmers will likely have to muddle along, responding in
the same way that they have been for years, which is by upping their
herbicide use in hopes of controlling the rogue weeds, as Washington
State University's Charles Benbrook showed in a recent paper (my
post on it here). That means significant economic losses for
farmers—according to Penn State's Mortensen, grappling with
glyphosate resistance was already costing farmers nearly $1 billion
per year in 2011. It will also likely mean a jump in toxic
herbicides entering streams, messing with frogs and polluting
people's drinking water.
For a good idea of
what's in store, check out this piece in the trade mag Corn &
Soy Digest on "Managing Herbicide-Resistant weeds."
Here's the key bit—note that "burndown" means a complete
flattening of all vegetation in a field with a broad-spectrum
herbicide such as paraquat, an infamously toxic weed
killer that's been banned in 32 countries, including those of
the European Union:
For those with a
known resistance problem, it’s not uncommon to see them use a fall
burndown plus a residual herbicide, a spring burndown before
planting, another at planting including another residual herbicide,
and two or more in-season herbicide applications. “If you can
catch the resistant weeds early enough, paraquat does a good job of
controlling them. But once Palmer amaranth [a common
glyphosate-tolerant weed] gets 6 ft. tall, you can't put on enough
paraquat to kill it," [one weed-control expert] says.
But of course
there's another way. In a 2012 study I'll never
tire of citing, Iowa State University researchers found that if
farmers simply diversified their crop rotations, which typically
consist of corn one year and soy the next, year after year, to
include a "small grain" crop (e.g. oats) as well as
offseason cover crops, weeds (including Roundup-resistant ones) can
be suppressed with dramatically less fertilizer use—a factor of
between 6 and 10 less. And much less herbicide means much less
poison entering streams—"potential aquatic toxicity was 200
times less in the longer rotations" than in the regular
corn-soy regime, the study authors note. So, despite what the seed
giants and the conventional weed specialists insist, there are other
ways to respond to the accelerating scourge of "superweeds"
than throwing more—and ever-more toxic—chemicals at them.
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