Immunize plants ... 'with' a plant strengthener

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Bigtime

Senior Member
Arabic
From
http://news.google.com/news?num=100&hl=en&lr=&safe=on&sa=N&tab=wn&q="strengthener"


Immunize plants against environmental stress and pest problems with a plant strengthener such as JAZ spray. This new group of products strengthens plants' own stress tolerance mechanism, so they are better able to deal with adverse conditions.

Does the preposition with mean (by using) as ..?

Immunize plants against environmental stress and pest problems by using a plant strengthener such as JAZ spray. This new group of products strengthens plants' own stress tolerance mechanism, so they are better able to deal with adverse conditions.

Thanks.
 
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