Beans In Colorado 
21 
not only reduce the yield of beans, but to reduce their salability. One 
of the best methods of fighting- these diseases is to plant beans in ro¬ 
tation, that is, never plant beans two years in succession upon the 
same land. At least two, or three years should intervene in order that 
the land may not become inoculated with the diseases which affect 
the bean crop. 
IMPROVEMENT OF PINTO BEANS BY SELECTION 
The greater proportion of the planting of pinto beans has been, 
done with little or no seed selection. Sufficient experimental work 
has been done to show that as much progress may be made from se¬ 
lection with pinto beans as is sometimes done with corn in the corn, 
belt. The bean plants are mostly self-fertilized, thus, if a good strain, 
is once obtained, no further selection within the strain is necessary,, 
because the strain is a pure line and breeds true. Every pinto beam 
grower who is making a business of bean production should start ai 
seed patch. The start should be made by selecting plants in the field. 
In making selection, the following points should be watched for: 
* g||f - 
A desirable type of plant—dry land Pinto Bean 
