What Superweeds can Teach You

by John Robb on May 25, 2012 · 16 comments

I don’t look at the time I spend in my garden as a hobby (although I’m having fun doing it).

I look at it as a vote.  I’m voting with my hands for a world that makes sense.

Here’s a good example of why I’m voting this way: Superweeds

Amaranthus hybridus 01

Superweeds, like Pigweed seen to the right, are going to make food much more expensive over the next couple of years.

Here’s some background on why.

A superweed is a weed that developed resistance to a herbicide called Roundup.

Roundup is used by farmers just about everywhere.   It’s being used so much that about 90 percent of the soybeans and 70 percent of the corn and cotton  grown in the US have been genetically modified to tolerate high dosages of Roundup to kill weeds more effectively.

However, something went wrong with that plan.  The same genetic modifications that made useful crops immune to Roundup have migrated into the genetic code of the weeds that were sprayed with it.  Now, 20 species of weeds across 12 million acres of farmland (about 8% of all US farmland) are resistant to Roundup.  Further, given current rates of growth, most of US farmland will have them too in five years.

What does this mean?  Killing weeds has become very hard, nearly overnight.  There isn’t any easy method for removing weeds and the costs of doing so are much higher than what they were previously.   The bottom line is that the price of food will go up, and up, and up as these superweeds spread.

We will see more failures like this in the near future.

Why?

Central planning simply doesn’t work with systems this large and complex since you can’t predict outcomes with any certainty.  The Soviets found this out twenty years ago.  We see it in finance as the Federal Reserve and the other big banks continue to dance with global financial panic.  We see it in agriculture as Monsanto and its government support system drives into uncharted territory with genetically modified foods.

 

So as these attempts at omniscient global engineering fail, what should we do?

We should produce more of the food, as well as everything we think is important, at a human scale.

Human scale means that the decision making used can be fully understood by normal human beings.  A decision making process that makes sense.

We’ve been making decisions at this level for hundreds of thousands of years, and it works.  In contrast, our knowledge of what works at the global super-system level is nearly zilch.

I don’t know about you, but I find a life where the decision making that impacts me makes sense, more satisfying than the alternative.

 

Your in favor of a life that makes sense analyst,

 

JOHN ROBB

 

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Erling Jacobsen May 25, 2012 at 9:28 pm

I don’t agree with the name “superweed”. Just because a weed becomes resistant to glyphosate does not mean it is immune to all herbicides. Before GMO corn and soybeans, which use glyphosate, non-GMO corn and soybeans used other broadleaf and grass herbicides. If the GMO crops had rotated off glyphosate and used the older pesticides every other year or so there wouldn’t be so called superweeds.

johnrobb May 25, 2012 at 10:29 pm

Erling, It’s true that they really aren’t that super. Let’s try a narrow version of “super.” A daredevil/black widow level. JR

different clue May 26, 2012 at 12:22 am

Many pigweeds (genus Amaranthus) are green-leaf edible when young. This roundup-immune pigweed might well be one of these.

I am just a barely-amateur micro-backyard gardener, but I have read that many successful farmers are able to prevent weed problems by proper crop rotation, soil fertility maintainance, etc. Acres USA Bookstore carries and sells many titles on that subject. Also, there are books about the mechanical suppression of weed-seedling growth at crucial times in the agricycle as part of non-chemical weed prevention/suppression. The title : Steel In The Field comes to mind as one of these.

Gary May 27, 2012 at 2:53 pm

Yes, steel in field! Whyyyyy, when I was a kid, I was in the field with the other kids slinging steel hoes to get the weeds that the tractor powered steel could get between the crop plants. Problem solved.

Later in life during a brief stint in a communal housing situation I was amused to see the weeds we spent so much time eradicating as kids being served up for dinner. Who knew they were so tasty. Fresh Lambs Quarters and soup made with young stinging nettles comes to mind.

Honolulu Aunty May 26, 2012 at 4:16 am

Aloha! I had to laugh at your picture of Pigweed because I have that growing in my garden, in my lawn, and would pull it out and think that it is such a nuisance.

However, my Thai friend who sometimes cooks for me saw it and said that it the leaves are very good for stomach ailments, and she sometimes puts it in soup!

I guess it proves the old adage, one man’s treasure is another man’s trash, or one man’s weed is another man’s medicine!

Aunty

johnrobb May 26, 2012 at 11:34 am

Aunty, So true. It is a very rich source of Omega-3 fatty acids (lots of people take fish oil supplements to get them). Here’s a recipe site that had a good treatment of it (very nice pictures of a prepared dish):

TobiasCooks

http://www.tobiascooks.com/recipes/portulac-salad-purslane-pig-weed.html

Portulac Salad – Purslane – Pig weed

Purslane contains more Omega-3 fatty acids than any other leafy vegetable plant. Purslane has .01 mg/g of Eicosapentaenoic acid (EPA). This is an extraordinary amount of EPA for land based vegetable sources. EPA is an Omega-3 fatty acid normally found mostly in fish, some algae and flax seeds. It also contains vitamins such as vitamin A, vitamin C, and some vitamin B and carotenoids, as well as dietary minerals, such as magnesium, calcium, potassium and iron.

JR

Don May 26, 2012 at 8:38 pm

JR
The salad you show is of the Portulacaceae family not the amaranthus mentioned as a superweed but called by a presumably local name of pigweed. Local names often cause confusion.

johnrobb May 28, 2012 at 7:09 pm

Thanks Don. JR

different clue May 26, 2012 at 9:06 pm

Common names can lead us astray sometimes. Amaranthus pigweed and purslane-portulacca pigweed are two highly unrelated plants. ( I wonder what the omega-3 level of Amaranthus pigweed would be . . . )

johnrobb May 28, 2012 at 7:10 pm

Thanks DC. JR

Honolulu Aunty May 27, 2012 at 7:31 am

Cool! Maybe I should eat more weeds!

Mahalo for sharing,

Aunty

Fred Smalley May 27, 2012 at 7:15 pm

What concerns me more than issues of herbicide effectiveness is the idea that so many plants have the same genetic characteristics. In this case, crops are bred to be resistant to herbicides to make it easier to control weeds- OK. However, our food crops are being hybridized around a remarkably small number of basic strains. That may increase yield and make weed control easier, but it also leads to vulnerability to pandemic diseases. The Potato Famine in Ireland and the Great French Wine Blight are two examples where disease attacked major crops with devastating results. What would happen in the US if some “blight” attacked the corn crop? It might be a bit more than an incremental increase in food prices.

alc May 28, 2012 at 8:04 am

Crack a book on genetics, John!

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