Insects in the Garden 321 



The trap plants also will be injured or even killed, but 

 they will have served their purpose. 



(3) Protection by covering. During the early stages of 

 their growth, young plants of the vine crops may be pro- 

 tected by frames covered with cheesecloth. 



(4) Late spraying and hand-picking. In the autumn, 

 large numbers of the adult beetles may be killed by spray- 

 ing or dusting late-growing plants of the Hubbard squash 

 with arsenate of lead. The beetles collect also on im- 

 mature fruits left in the garden ; and on cool mornings, 

 about the time of the first frosts, these insects are sluggish 

 with the cold. At such times the fruits may be picked 

 and the clinging beetles brushed into a pail of water and 

 kerosene. The common squash bug and the twelve- 

 spotted cucumber beetle also may be destroyed in con- 

 siderable numbers at the same time. 



(5) Burning old vines. After the vines have been 

 killed by frost, they should be raked into piles and left 

 for several days; then, with the addition of brush or 

 straw, the piles may be burned quickly, thus killing the 

 beetles that have taken refuge within. During late 

 autumn the gardener is likely to become careless regard- 

 ing the use of remedies against insects ; but he should 

 remember that " a stitch in time saves nine." 



Other chewing insects likely to injure garden crops. 

 The potato beetle is nearly always present on potatoes 

 and feeds vigorously both in the adult and in the larval 

 stages. Methods for the control of the potato beetle 

 have already been mentioned (page 280). 



Two kinds of beetles are injurious to asparagus, feed- 

 ing in both the larval and adult stages on young 



