280 Gardening 
may be kept somewhat in control by spraying with Bor- 
deaux mixture (see page 295). 
Insect enemies of potato plants are always abundant. 
In some years the potato aphid (a tiny plant louse) is 
very destructive unless vigorously combated with nico- 
tine sulfate sprays. The potato “bug” (really a 
beetle, not a true bug) is nearly always present. Dust- 
ing with Paris green and the use of poison sprays are 
effective for the larve of potato beetles, and the adults 
can be eradicated by hand picking. 
JERUSALEM ARTICHOKE OR GIRASOLE 
This sunflower was a food plant well known to the 
Fic. 160. The Jerusalem artichoke is ornamental as well as useful. Here it 
is grown on the edge of the garden to serve as a screen for the hen yard in the 
rear. 
