266 ARID AGRICULTURE. 



plants by cut worms. Spray the trap crop with 

 Paris green or arsenate of lead solution, or dust 

 Paris green mixed with flour from a cheese cloth 

 sack over the plants when the dew is on. The 

 cut worms eating this poison will be destroyed 

 before the regular crop comes up. A good 

 method of protecting plants like cabbage or to- 

 matoes from cut worms is to set a small cylinder 

 of cardboard or tin around each one. A tin can 

 with both ends melted off or a small piece of tin 

 which is bent by rolling around a hoe handle, 

 serves the purpose. 



THE This borer causes much damage to vounff cot- 



COTTONWOOD -. , , . ? * 



BORER tonwood and poplar trees. As it works under 



cover inside the trunk of a tree, it is difficult to 

 reach. The method is to paint all places where 

 the limbs have been cut off, or breaks in the bark 

 with pine tar or white lead, take out the borers 

 with a knife or wire and trap the moths Avhen 

 they are flying. Borers feed a year or so under 

 the bark before they bore into the wood. Their 

 presence is detected by dark spots in the bark. 

 The most effectual remedy is to dig them out or 

 with a syringe force a spoonful of fuma in the 

 hole and plug it up. 



BEAN In bean beetles we have an instance where 



the poison is more deadly to plants than it is to 

 the insects feeding upon them. The bean beetle is 

 a "spotted lady bird," the only one of the tribe, 



