310 VEGETABLE GROWING PROJECTS 



cycle. Wire worms are long, hard-bodied, yellow or brownish 

 larvae, the adults of which are the well-known snapping beetles. 

 They may be controlled by crop rotation, and poison baits. 



Millipedes: Recently germinated corn and other seeds, and 

 fruits, if resting on the ground, may be destroyed or spoiled by a 

 rather long, round segmented animal, having two pairs of legs on 

 all but the four front segments. No satisfactory method of con- 

 trol is known. Trapping or dusting is sometimes effective. 



Slugs : Radishes, lettuce, cabbage, beans, and various root crops 

 are often spoiled by a grayish spotted slug having on its body a slimy 

 protective covering that adheres to the surface on which it travels. 

 These pests appear to prefer moist locations especially, seeking 

 hiding places beneath stones or decaying wood, away from strong 

 sunlight. As the drying of the slimy coat will kill them, an 

 appUcation of air-slstked lime on and about the plants is suggested. 

 Poison bait or poisoned tubers used as traps are efficient. 



Information on control of diseases of vegetables will be found 

 in the various chapters in connection with the notes on " Com- 

 bating Insects and Diseases." 



1. What causes plants to wilt and to be cut off at the ground? 



CL : 260. 



2. What is the life history and habit of a cut-worm ? CL : 260. 



3. Which is the best remedy, culture or trapping ? CL : 298. 



4. When are white grubs most injurious ? CL : 346. 



5. What is the life history of the white grub ? CL : 345-346. 



6. Can any crops be safely grown on infested land ? CL : 346. 



7. Can broods of the insect be anticipated ? CL : 347. 



