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Controversial Trial of Genetically Modified Wheat Ends In Disappointment

sciencehabit writes: A controversial GM wheat trial has failed after more than £2 million of public money was spent protecting it from GM opponents. Researchers had hoped that the wheat modified to produce a warning pheromone would keep aphids away and attract their natural enemies, reducing the need for insecticides. Despite showing promise in the laboratory, the field trial failed to show any effect. “If you make a transgenic plant that produces that alarm continuously, it’s not going to work,” ecologist Marcel Dicke of Wageningen University in the Netherlands says. “You have a plant crying wolf all the time, and the bugs won’t listen to it any longer.”

5 of 188 comments (clear)

  1. Re:Bash transgenic foods all you want by PopeRatzo · · Score: 3, Interesting

    require fewer pesticides

    Sadly, no.

    http://static.ewg.org/agmag/pd...

    --
    You are welcome on my lawn.
  2. Life finds a way by Cazakatari · · Score: 5, Interesting

    I would agree with the "cry wolf" assessment. Having worked in pest control in my experience pheromones don't work well and/or very long; about the only good use I've found is for monitoring. I once talked to a Chemistry professor working with an Entomologist to synthesize fire ant trail pheromones (how they make paths to food) to see if it could be used to confuse workers. He told me it worked for all of a few minutes before they "figured it out" and started trailing through it like nothing happened. Smell is the primary sense for most insects and can be extremely acute (some moths can sense a few MOLECULES per square foot), so I think it will be relatively difficult to find a way to trick them in that way.

    I'm glad they're trying new things, we're ganna need it along with intelligent usage so we don't end up needlessly wasting away their effective life-spans like we've done with previous pesticides and anti-biotics. Shelf what doesn't work but continue encouraging innovation (which I think the current gene patent situation is probably stifling)

  3. Re:GMOs have so many different problems by NotDrWho · · Score: 1, Interesting

    You right, better to go back to using non-GMO plants--and getting much lower yields, needing much stronger pesticides, and letting half the world starve.

    Problem SOLVED!

    --
    SJW's don't eliminate discrimination. They just expropriate it for themselves.
  4. Re:GMOs have so many different problems by pubwvj · · Score: 4, Interesting

    People have done research before without all the greed that is surrounding GMOs. I do research. I release my results open source. No need for the likes of Monsanto to control the world. They're too greedy. Denying them patents would help.

  5. Re:Bash transgenic foods all you want by ChromeAeonium · · Score: 3, Interesting

    After cursory glance at that, it seems neither of the graphs in the EWG thing you linked to even mention GE. More widely accepted publications tend to say otherwise, depending on the situation.

    I also like the part where no one ever explains how insect resistance is supposed to increase insecticide use, but only when that resistance is transgenic. No one would ever argue against conventionally bred resistances, and somehow, once genetic engineering is involved, then the genetic component of integrated pest management (which is to say, select varieties and/or species resistant to your local insect populations as a first line of defense against them, as opposed to chemical controls later) is suddenly a bad thing.

    I do love that they mentioned the insects that have overcome the transgenic defenses. Typical anti-GE nonsense: deny the crops help pest problems, meanwhile say the crop resistances are creating selection pressure for resistance overcoming insects (which shows they slept through population genetics), then deny there are benefits, meanwhile say that the resistant pests are a huge problem. I mean, yeah they genuinely are a problem, but because they threaten the benefits we've already gotten.