106 



HOW DO SEED PLANTS SUCCEED IN LIFE? 



sian fly, an enemy of the wheat plant. Ragweed and many others 

 scatter pollen which causes hay fever to some people. 



Individual Project. Make a survey of your community or town 

 for the tall barberry that harbors wheat rust. Destroy the barberry 

 by. using either kerosene or rock salt on the ground over the roots. 



Poisonous weeds. Poison ivy, poison oak, and poison sumach 

 cause very painful blisters to most people who touch them. Iron 

 chloride is an excellent preventative, and in potassium permanga- 

 nate dissolved in water is 

 a standard relief agent. 



Poison ivy is an ex- 

 ample of a weed that is 

 extremely poisonous to 

 touch. It is a climbing 

 plant which attaches it- 

 self to trees or walls by 

 means of tiny air roots 

 which grow out from 

 the stem. It has leaves 

 divided in three parts, 

 which aid in distinguish- 

 ing it from its harmless 

 climbing neighbor, the 

 Virginia creeper, which 

 has leaves divided in five 

 parts. Every boy and 

 girl should know how 

 poison ivy looks in order 

 to avoid it. 



Numerous other poi- 

 sonous common plants 

 are found, one of which 

 deserves special notice 

 because of its presence 



L.W.Brownell in vacant C ity lots. The 



Above, poison ivy leaves. Below, leaves of Virginia , . . , 



creeper. How do they differ ? JlUlSOn Weed IS a DUShy 



