RUST AND INSECTS. 91 



centre tissues being destroyed, they change to a 

 yellowish white color. The spots are often so numer- 

 ous as to destroy the leaves. The fungus also works 

 upon, and does most injury to, the flower or fruit 

 stalks, and as a result the berries wither and dry up. 



The remedy is in planting varieties least subject to 

 attack, to set out only strong, healthy plants, from 

 beds that have not fruited, give careful cultivation, 

 fertilize liberally, and keep a bed in fruiting only one 

 year. 



Application of Bordeaux mixture, prepared in the 

 usual way, using three pounds of copper sulphate, the 

 same of fresh lime, and thirty-two gallons of water. 

 Applying early in the spring, and again after the 

 blossoms fall, will hold leaf rust in check until after 

 the crop is gathered. For the new bed apply as often 

 as there is any sign of rust. For an acre, or less, the 

 knapsack sprayer will readily do the work if one 

 can carry it by proxy. 



There are several insects that have special fondness 

 for the strawberry plant, though I have never been 

 bothered with any. The root-borer is about a half-inch 

 long, whitish in color, and bores into the crown in the 

 fall, remaining all winter. The remedy is to dig up 

 and destroy the affected plants. 



The crown-borer is a white grub, one-fifth of an inch 

 long, with yellow head ; the mature insect is a cur- 

 culio. Remedy: Mow the field after fruiting, and 

 burn it over. 



The leaf roller feeds on the leaves, rolling them 

 up. Burn. 



Root lice often appear in great numbers, feeding 

 on the roots of the plants. Plants received from 



