34 



the moths fly only at night, the basin should be visited every 

 evening, the moths taken out and the liquid replenished. 



From what has been said in regard to the cotton-worm 

 and boll-worm, it will be seen that we can fight both worms 

 by the same remedies and at the same time. 



APHIDS ON COTTON. 



Aphids, or plant lice, as they are commonly called, are 

 small, usually wingless insects, frequently of a green color. 

 They pierce the leaves of the cotton-plant and suck its juices. 

 Since they are not biting insects and do not eat the tissues? 

 they cannot be killed by the use of the poisons applied to 

 destroy the cotton worm or boll worm. 



Plant Lice or Aphids. — a, male ; 6, female. 



The cotton-plant louse is not as common or destructive an 

 insect except in extreme cases, as the boll worm and cotton- 

 worm. Whenever the plant louse does occur to a threaten- 

 ing extent it is easily destroyed by the use of Kerosine 

 Emulsion. (See Insecticides.) 



THE COEN PLANT. 



CUT WORMS. 



The cut- worm has been already described as affecting cab- 

 bage. They al'e also very destructive to corn, often necessi- 

 tating re-planting. It is not necessary to describe them 



