Memoir 20 



Plate LVf 



I jI< \ ROOT-ROT OF BEAN 



1, A field of White Marrow Leans affected with dry root -rot. The rows are 28 inches apart. 

 Healthy plants would cover the ground 



2, The dry root-rot of the bean. A mass of surface roots has been produced above the dried 

 taproot 



3, Flat Marrow bean resistant to dry root-rot. The effect of the disease is shown <n the 

 White Marrows near the Flat Marrow 



