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Here's the answer to your Plant Problem...


You asked:

The leaves of my runner beans developed and turned yellow, why?

Our Advice:

This is a bacterial disease called halo blight; always worse in wet weather because it is spread by water splashes. Spray with Vitax'>Copper Mixture from Vitax or Uncle Tom's Rose Tonic as soon as the spots are noticed. This disease is often seed-borne and worse with saved seed. The variety 'Red Rum' has a high tolerance to this disease.

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