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Syngenta Field Report

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The Syngenta Field Report features information and experts from Syngenta sharing observations about issues growers are dealing with in the fields.

Could CRW develop resistance?

Oct 09, 2009
Caydee Savinelli

Many growers currently use corn hybrids stacked with Bt and glyphosate-tolerant traits to control corn rootworm and manage weeds. The volunteer corn that emerges the following year is considered a weed problem, but it may be a “safe haven” for corn rootworms.
 
The volunteer corn includes second-generation Bt, which equates to a lower dosage of the Bt gene – enough to stun, but not always eliminate the corn rootworm. Exposing the corn rootworm larvae present in the field to less-than toxic levels of Bt can decrease its susceptibility to the Bt trait. This could potentially foster development of harder-to-control corn rootworm.  
 


Check out some Syngenta solutions to manage this challenge.  How do you control volunteer corn? 




 

Corn rootworm feeding on volunteer corn roots

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