INSECTS INJURIOUS TO GARDEN TRUCK 485 



away in the ground or rubbish during the day and come forth 

 at night to feed on any available vegetation. As they have a 

 pernicious habit of cutting off small tender plants close to the 

 surface of the ground, they may often do much damage, par- 

 ticularly in the garden. They are usually held in check by 



FIG. 229. A cut-worm, species undetermined. (About natural size.) 



their natural enemies, but sometimes they seem to get away 

 from control and occur in such numbers that they destroy 

 nearly every green thing in the affected regions. At such 

 times some of the species will begin to migrate in great armies 



FIG. 230. Adult of army-\vorm. Leucania unipinicta. (About natural 



size.) 



in search of food. They are then called army-worms, and 

 their control becomes a matter of prime importance to the 

 man whose field, orchard or garden lies in their path. 



The methods used in fighting cut-worms must vary according 

 to time, place and local conditions. No single remedy can be 



