18 . Farmers’ Bulletin 1261. 
CONTROL. 
By spraying with 40 per cent nicotine sulphate at the rate of 1 part 
to 900 parts of water, with the addition of 1 or 2 pounds of fish-oil 
soap to each 50 gallons of the diluted spray solution, the lace-bug 
is readily controlled. The soap will cause the spray to spread more 
Fic. 18.—The avocado lace-bug: Injury to leaf of avocado. 
readily over the foliage, to stick, and not to fall off in small drops. 
If the red spider is present at the same time the lace-bugs are doing 
their work, the nicotine sulphate solution may be added to the lime- 
sulphur solution in the same manner as when the leaf-infesting 
thrips is present. - ; 
