Report of Missouri Farmer's' Week. 



573 



adult beetles pass the winter hiding under trash or other conven- 

 ient shelter that may be commonly found in the orchards or along 

 the hedge rows or adjacent patches of timber. In the spring 

 about the time the blossoms have fallen from the apples or a little 

 later, they become very active in depositing eggs in the fruit of 

 the apple. In doing this the beetle makes with its mouth parts 

 small, crescent-shaped cuts in the skin of the fruit and then de- 

 posits the egg in the cut just under the flap of skin. These cuts 

 or punctures can usually be noticed in considerable numbers in 

 about six to ten days after the blossoms have fallen. The young 

 worm or grub when hatched is already inside the fruit, which 

 makes it impossible to fight the insect in the larval stage, which 

 is the stage that control measures are most effectively applied 



against insects. When the 

 worms become full grown 

 in the fruit they come out 

 and enter the soil where 

 they undergo the trans- 

 formation to the adult. 



In the control of this 

 insect on apples about two 

 or three applications of 

 arsenate of lead are neces- 

 sary. The first one being 

 made just after the petals 

 have fallen, the time for 

 the first spraying for cod- 

 ling moth. The second 

 application should be made from six to ten days after the first, as 

 this is about the time that the greatest amount of injury is ap- 

 parently done. The third application, if given, should be made 

 three or four weeks after the blossoms fall. 



Late curculio injury on apple. 



LEAF-EATING INSECTS. 



Leaf-eating insects, such as tent caterpillar, leaf skeltonizer 

 or fall webworms are easily controlled by the applications of 

 arsenate of lead at the time of appearance of the worms. If con- 

 ditions are such that it is necessary to spray the orchard for other 

 important troubles it will probably not be necessary to make addi- 

 tional applications for these insects, unless they should appear in 

 unusual numbers. For cankerworms the first application of 



