INSECTS INJURIOUS TO FRUITS. 



81 



not later than the first of June, many of the worms and chrysa- 

 lides of this moth will be found under them and may be easily 

 destroyed. The bands should be examined about once in ten days 

 until the last of August. 



The most common way of protecting against this insect is 

 by spraying the trees just after the blossoms fall, when the ap- 

 ples still stand upright, with Paris Green and water at the rate 

 of one pound to one hundred and sixty gallons. When the trees 

 are sprayed to prevent scab, the Paris Green may be added to 

 the Bordeaux mixture at the rate of one pound to one hundred 

 and fifty gallons of the mixture. 



Plum and Apple Curculio. These are snout beetles which cut 



, , small holes in the fruit as 



they feed, and also use the 

 fruit as a place for laying 

 their eggs. The latter soon 

 hatch into a small grub 

 which, at maturity, is about 

 one-half inch long. The spe- 

 cial injury to the fruit from 

 this insect comes from the 

 hard knots that form where 

 it has been stung, which 

 makes the apple gnarled and 

 of poor quality. 



Remedies. These insects 

 breed mostly in the wild 

 plums, haws and wild crab 



apples, and destroying these generally results in lessen- 

 ing the damage to the apples in their vicinity. The 

 windfalls should be destroyed, and pasturing hogs in the or- 

 chard is probably the easiest way to accomplish this. Clean 

 culture has proven most satisfactory in ridding orchards of the 

 curculio as they winter over in grass and rubbish. Spraying the 

 fruit with Paris Green, lime and water, as recommended for the 

 tent caterpillar, has sometimes proven satisfactory. 

 Affecting the foliage: 



Tent Caterpillar (Malacosoma americana). The character- 

 istics of this insect are readily seen in Fig. 28, which shows the 



Fig. 27. Showing" the way in 

 which apples are injured by the 

 Plum Curculio. 



