Sponsored By
Farm Progress

Early glyphosate-resistance detection soon?Early glyphosate-resistance detection soon?

A new kit will help growers determine whether weeds in their fields are glyphosate resistant.

National Cotton Council

September 16, 2013

1 Min Read

A USDA Agricultural Research Service scientist is working with Monsanto to develop a kit that growers could use to determine whether weeds in their fields are glyphosate resistant. One key to addressing the threat posed by glyphosate resistance is early detection. If a resistant weed is detected early, alternative control methods can be employed to prevent resistance spread.

Scientists can determine whether a weed will resist glyphosate by measuring the amount of a compound, shikimate, in its tissues. Glyphosate kills weeds by interfering with production of aromatic amino acids through the “shikimate pathway.” Glyphosate disrupts this pathway causing shikimate to accumulate. Plants susceptible to glyphosate will have high levels of shikimate while resistant plants will not.

Existing methods for detecting shikimate in plants require sophisticated laboratory equipment and test results can take weeks. This new method, which uses a dye that changes color, can be completed in just 24 hours.


More from Western Farm Press

Honey bees to rent? Demand will only grow

GMO website developed to combat misinformation

Why peaches were so good this summer

Subscribe to receive top agriculture news
Be informed daily with these free e-newsletters

You May Also Like