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BUYERS GUIDE 

MEDICAGO LUPULINA 
AC oh LAE PEL 

WPA 
Pi ibsit 
ELLOW TREFOIL (Medicago lupulina).—Both a summer and winter an- 
nual is also known as Black Medick, because the single seeded ripe pod 
is black. It is an introduced plant with a dual personality, being closely re- 
lated to alfalfa it has much the same feed value, but since it is an annual 
In the 
south where the growing season is long it can reach sufficient size in one 
and not able to stand up by itself, it becomes a weed in most cases. 
season to be of value as an emergency pasture crop and with a grass com- 
panion which holds it upright, can be of value as hay. 
green manure crop in the middle Atlantic states and north tier of the Gulf | 
States. In the north central states it is more or less a weed. 
of cereal crops it may cause the grain to lodge. After this the Trefoil grows 
In a good stand 
over the lodged grain, keeping it moist so that the grain rots on the ground 
Its seeds 
The flowers are small and yellow and 
and fails to fill out its kernels. Also it becomes a pest in lawns. 
will live in the soil for several years. 
the leaves resemble those of white clover. Alone it grows flat on the ground. 
In fields it is best controlled by growing alfaifa and intertilled crops; and in 
lawns by fertilizing heavily with ammonnium sulfate and by close cutting. 
a 
Ttms also used asia 


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85 

