GMOs used as pesticides in a brand new way!

A Colorado potato beetle. USDA photograph by Scott Bauer via Wikipedia.

I just returned from Reno, Nevada attending the Entomological Society of America’s annual meeting. I went to a bunch of really neat talks, saw some old friends and met some new friends. It turned out to be a great networking opportunity, and I met some folks doing amazing research I would really like to work with in the future. Unfortunately, I wasn’t presenting data because I missed the submission deadline but I was still fortunate enough to be on the debate team.

The topic of the debate was “can organic agriculture solve food scarcity problems?”. The subjects were randomly chosen and don’t necessarily support the views of those engaged in the debate, so I will not speak for anybody but myself. I was on the con team, and we were charged with arguing that organic agriculture is an inferior method of food production. We were up against a very good team and all day folks were coming up to us and telling us how much they enjoyed our debate. Ultimately, we won the best overall debate team and took home an engraved trophy and left the meeting $125 richer after splitting a $500 prize between the four of us.

My role on the team was to look into the pesticides used in organic agriculture and their treatment regimes. To my surprise, I found that organic operations actually increase the amount of inputs put into the environment by requiring higher concentrations and more frequent applications of pesticides. The insecticides used in organic ag are often less effective, less selective, and can have greater non-target effects than synthetic insecticides. Some organic pesticides, like the biopesticide Beauveria bassiana, are assumed to have a very low environmental impact quotient (EIQ), but haven’t been tested for potential ecological side effects. My position (and position on the debate team) is that GMOs like Bt corn are better for the environment because they decrease the amount of pesticides that we must put on crops and that organic pesticides are worse for the environment because they must be constantly reapplied in very high concentrations.

This, however, wasn’t the idea that earned me my stripes during the debate. During the Q&A session, somebody asked us to clarify why we thought organic ag was able to innovate to a lesser extent than sustainable or conventional agriculture. My response was that we can modify pesticides to become less toxic, more easily degradeable and more difficult for insects to detoxify by producing insecticides synthetically and making it more or less difficult for the insecticides to degrade. While organic ag could certainly benefit from new chemistries, they reject them as soon as modifications such as these take place because the new pesticide is synthetic. In short, organic producers are unable to take advantage of novel chemistries. I used the example of adding carbon atoms or benzene rings in a specific place to keep beta-lactam antibiotics medically relevant during the debate, but there was a much better example I could have used but unfortunately neglected to discuss. But, hey… that’s what the blogosphere’s for isn’t it?

Very recently, the lab of Reddy Palli has figured out a way to genetically modify an organism to become a spray-on pesticide. To fully understand and appreciate what’s going on, there are a lot of things I need to explain. Fortunately, I’ve got about 12 hours of travel time ahead of me. Awesome, right?

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Serendipity at Maize Genetics

While at the 2011 Maize Genetics Conference, the Biofortified Executive Editorial Team (Hey that spells BEET), aka Anastasia and I, talked about many of the awesome things that have made it onto the blog, and things that have not yet done so. One of the craziest things that I learned from a fellow graduate student while harvesting ears of corn in the field last fall were the Oat-Maize Addition Lines. People often frame their

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First fun at MGC 2011

As I mentioned in my previous post, a good contingent of the Biofortified gang is here at the 2011 Maize Genetics Conference in St. Charles, Illinois. This 3-4 day event is the 53rd conference in its long history. After I walked out of the NCCC-167 meeting to pick up my name tag and conference book for MGC, Anastasia had just arrived and we started chatting about many of the things that have been going on with the blog, and in the world. We put up our posters (Anastasia has a research poster and one for MaizeResearch.org, and I brought our latest blog poster) and had dinner. That’s when the first awesome thing happened.

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NCCC-167 2011 Edition

A couple years ago, Anastasia wrote about the NCCC-167 North Central Region Corn Breeding Research meeting. (NCCC stands for North Central Communications Committee.) This time around, it was my turn to attend, and it went pretty well if you ask me. After a short drive from Madison to St. Charles, IL, the one-day conference started just after lunch.

Some of the talks on the first afternoon were on the effect of pieces of the wild teosinte genome in maize varieties, aka introgression lines, and selecting for dark orange color in the kernels, for example. Reid, a fellow UW-Madison grad student, gave a great presentation on the performance of some new sweet corn lines compared to popular varieties.

On the second day, the first order of business was a round-table discussion from 8-11:30, where breeders and grad students could get up in the middle of the group and draw their breeding strategies on an easel.

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Green Revolution 2.0

Ever wonder what the heck people mean when they say we need a “Second Green Revolution” or a “Greener Revolution”? There is a unique opportunity to find out!

Green Revolution 2.0: Food + Energy and Environmental Security was the theme of this year’s ASA, CSSA, and SSSA 2010 International Annual Meetings that took place 31 October to 4 Novermber this year in Long Beach, CA. ASA is the American Society of Agronomy, CSSA is

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Biofortified's volunteer authors are devoted to providing factual information and fostering discussion about agriculture, especially plant genetics and genetic engineering. The site is written by grad students, professors, and guest experts. Meet our authors on the Authors page.

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