152 The Fruit-Growers Guide-Book 



to other plant lice. They appear first on the foliage and 

 tender young leaves in the crown of the plant, and col- 

 onies of them may even be found on the roots of the 

 strawberry, where they have been carried by a species of 

 ant, which places them in specially prepared galleries. 



The most effective remedy, perhaps, is to plant the ber- 

 ries in new ground every third year. Fumigation of the 

 plants before planting will free them of any living insects, 

 and spraying with black leaf when the lice are first noticed 

 in the spring will keep them well in check. 



Crown Borer. This is a white grub which works in the 

 crown of the plants along in mid-summer. This grub is 

 about one-fifth of an inch long, and develops into a cur- 

 culio or weevil. To control this insect by spraying is 

 rather difficult on account of its habits. The best means 

 of control is to burn over the fields immediately after the 

 fruit has been picked. Any plants remaining which are in- 

 fested should be dug up and burned. 



Grape Insects 



Leaf Folder. This is the larva of a moth having wings 

 of black, bordered with white, and with white spots on the 

 upper sides. The adult lays its eggs on the upper side of 

 the leaves. As soon as hatched the larvae begin to feed on 

 the tissue of the upper side of the leaves, leaving only 

 the hard veins and skin of the lower side. As it feeds it 

 spins a web over itself in such a manner as to bring the 

 sides of the leaf together, forming a fold in the leaf. It 

 pupates within the folded leaf. Because of its leaf-eat- 

 ing habit it can be controlled with any of the usual arsen- 

 ical sprays. 



Flea Beetle. This is a small steel-blue beetle about an 

 eighth of an inch long, which is readily disturbed on the 

 vines, and has the habit of dropping to the ground. It 

 passes the winter in the adult condition, and in early 

 spring attacks the opening buds and tender young leaves. 

 Soon after the leaves appear the female commences laying 

 eggs, which are orange colored, on the under side of the 



