Countering disease resistance needs dual-mode fungicide
The set up for resistance is because strobilurin fungicides have been used on so many acres continuously (corn and soybeans) and because this class of fungicides is so effective on a wide spectrum of diseases.
One of the advantages Hopkins notes to Stratego YLD fungicide is that it includes two fungicide modes of action that ag professionals have now recognized as necessary to minimize potential resistance. It contains a strobilurin and a triazole fungicide.
“The strobilurin component is very effective against a large number of diseases, and you have the triazole component that takes care of the frogeye leaf spot that may be resistant to strobilurins. You are also at the same time diversifying the fungicide exposure. Using the combination of modes of action in Stratego YLD can help delay the onset of resistance to either fungicide component when used together.”
He concluded by saying, “There is a whole complex of diseases that may not get much attention, but the fact is if you can keep the soybean plant clean, healthy and productive, it is going to have a whole lot more capacity to use its photosynthesis to produce higher yields than if the crop is suffering from even a low level of disease.”
Hopkins can be reached at firstname.lastname@example.org for more information.