THE VEGETABLE GARDEN 195 



method of doing harm, the biting insects and the sucking 

 insects. The biting insects, like the potato beetle, devour 

 the solid tissues of the plant, usually of the leaf ; the sucking 

 insects, like the squash bug, suck out the sap from the plant. 

 The following table is taken from Farmers' Bulletin 818. 

 It lists the insects most likely to appear in the vegetable 

 garden and furnishes information in regard to the plants 

 attacked and the treatment recommended. 



INSECT 



PLANTS ATTACKED 



TREATMENT 



Eating type : 

 Tomato worm . 



Cabbage worm 

 Cucumber beetles 



Potato beetle 



Sucking type : 

 Squash bug . 



Aphids (plant lice) 



Tomato . . . 

 Cabbage group . 

 Cucumber 



Potato, eggplant, 

 and tomato . . 



Squash, pumpkin, 

 melons, etc. *t , 



Cabbage group and 

 other plants . . 



Hand pick or spray with 

 arsenate of lead. 



Hand pick or apply arsen- 

 ate of lead. 



Cover with frames. Ap- 

 ply tobacco dust or spray 

 with Bordeaux mixture 

 or arsenate of lead. 



Hand pick and apply arsen- 

 ate of lead. 



Hand pick; spray with 

 kerosene emulsion or 

 nicotine sulfate. 



Spray with kerosene emul- 

 sion, a solution of hard 

 soap, or nicotine sul- 

 fate. 



To destroy the sucking insects, the plants are sprayed 

 with some poison like kerosene emulsion, which kills the 

 insect by contact or by smothering it. To destroy biting 

 insects the plants are sprayed with some poison like lead 

 arsenate, which is the best poison for this purpose. Paris 

 green is also frequently used. The insects eat this with 

 the leaf and are poisoned. For small quantities three tea- 

 spoonfuls of lead arsenate or one of Paris green are used 



