Agronomy updates:
COOL’ing off
Field schools coming up » PG 3
Retaliatory tariffs months away » PG 9
SERVING MANITOBA FARMERS SINCE 1925 | Vol. 73, No. 27 | $1.75
July 2, 2015
weed control innovation
TPP talks worry dairy farmers Foreign supplies want access to Canadian markets By David Ljunggren Ottawa / Reuters
manitobacooperator.ca
Monsanto rolls out glyphosate-dicambatolerant soybeans Manitoba farmers could be planting these dual-stacked GM soybeans as early as next spring
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anada’s powerful dairy industry expressed concern June 26 that it could suffer if talks to create a Pacific trade treaty open up heavily protected Canadian markets to more foreign competition. Some of the 12 nations taking part in negotiations on a Trans-Pacific Partnership (TPP) want Canada to start dismantling supply management, which protects dairy, egg and chicken producers. “The pressure is there and there is a risk that access could be provided,” said Yves Leduc, director of international trade at the Dairy Farmers of Canada lobbying group. “The negotiations are moving on and obviously there is a risk... (and) that is causing a lot of concerns within the dairyfarming industry,” he said in a phone interview. This could be problematic for Prime Minister Stephen Harper, whose right-of-centre See TPP TALKS on page 7 » PHOTO: meghan mast
BY ALLAN DAWSON Co-operator staff / Oakville, Man.
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onsanto’s new glyphosate- and dicamba-tolerant “Xtend” soybeans will give farmers better weed control, higher yields and delay the onset of glyphosate-resistant weeds, company officials told agronomists and reporters here June 23. And if China approves their import, North American farmers, including in Manitoba, will be planting Xtend soybeans next spring, said Pat Comte, Monsanto’s strategic account manager. “This is going to be the largest launch of a trait in our company history,” he said. Stacking a dicamba-tolerant gene with glyphosate (Roundup) tolerance will
make it easier for soybean growers to control more weeds with one spray application, including some glyphosate-resistant weeds. It provides 14 days of residual weed control and delays the development of herbicide-tolerant weeds, said Bruce Murray, Dekalb’s agronomist for southeastern Manitoba. (Dekalb is Monsanto’s seed company.) “Probably the best thing we can do (to delay herbicide-resistant weeds) is tank mix,” Murray said. “We always take the easy way out. We’ve got to stop taking the easy way out. Tank mixes are probably the best thing you can do to slow resistance that you actually have some control over.” Weed experts agree. Applying herbicides with two different “modes of action” to kill weeds reduces the chance of selecting naturally herbicide-resistant ones. If
one herbicide doesn’t kill the weed hopefully the other does. Each mode of action is numbered. Glyphosate is in Group 9 and dicamba is in Group 4. With repeated use, however, there’s a risk of selecting weeds that are resistant to glyphosate and dicamba. That’s why Monsanto recommends applying glyphosate (Weathermax) and dicamba (Xtendimax) pre-plant to the V2 soybean stage to get early weed control, resulting in potentially higher yields. If a second application is required in-crop farmers can substitute dicamba with one of several other herbicides such as Viper or Odyssey, which will control glyphosatetolerant canola. See SOYBEANS on page 6 »
2,4-D: A possible carcinogen, IARC says » PAGE 19