36 THE GINSENG INDUSTRY. 



place during the winter, they should not be left exposed 

 to the weather and to decay. Again, when they are 

 removed there is better chance for leaves to collect upon 

 the beds and to protect them. Along the sides of the 

 bed exposed to the direct rays of the sun it will be found 

 necessary to place a vertical shade, to protect those parts 

 of the bed from the summer sun. 



A modification of this plan is to make the frame- 

 work for the sections just high enough from the ground 

 to clear the plants by a few inches. With the smaller 

 plants, about fifteen inches, and with the larger about 

 thirty inches, will usually be about right. In this 

 method the sections are not fastened to the frame, but 

 only held in place by stones or other weights, which can 

 easily be removed when the bed is to be weeded or other- 

 wise attended. The plan is not so good as the preceding 

 one, since there is likely to be too much shade in some 

 spots and not enough in others, and there will always 

 be more or less annoyance and loss of time in having to 

 lift the sections out of the way when attending to the 

 plants. 



ENEMIES. 



So far as can be learned, ginseng has no specific 

 enemy. A few insects and snails may occasionally be 

 found upon its leaves, and sometimes trouble has been 

 caused by worms at the roots, but this latter has been 

 only when the roots have been attacked by some kind of 

 decay, the products of which, and not the roots them- 

 selves, were attractive to the creatures. With the excep- 

 tion of this decay there seem to be no diseases that 

 attack the plant, a point well worth noting. It is prob- 

 able, too, that the decay is caused by injury of some 

 kind to the roots, since it has not been noticed in 

 cultivated beds except very rarely. 



Injury is often done by moles and mice. The moles 

 do not attack the plants, but merely make tunnels 



