VEGETABLE AND FIELD CROPS 285 



" Those who wish to get along with three sprayings should 

 postpone the first one until there is danger of injury from 

 bugs or flea beetles, and then spray thoroughly with Bor- 

 deaux and poison. The other two sprayings should like- 

 wise be thorough and applied at such times as to keep the 

 foliage protected as much as possible during the remainder 

 of the season. Very satisfactory results may be obtained 

 from three thorough sprayings." 



" A single spraying is better than none and will usually 

 be profitable, but more are better." 



" Except, perhaps, on small areas, it does not pay to 

 apply poison alone for bugs. When it is necessary to fight 

 insects, use Bordeaux mixture and poison together." 



PUMPKIN 



Downy mildew. 8ee cucumber. 

 Powdery mildew. See squash. 



RADISH 



Club root. See cabbage. 



White rust (Albugo Candida (Pers.) Ktz.). — This white 

 rust has the characters described under beet, and in addi- 

 tion, upon this host, it often causes curious malformation 

 of the flowers and pods, which become overgrown and dis- 

 torted ; often a flower is five times its nornial diameter 

 and is colorless. Chief damage is done to the seed crop, 

 which may be quite ruined by this attack upon the flowers. 



Burning of all infected trash is the best preventive. 



Damping off (Rhizoctonia sp.). — Damping off and root 

 rot of this crop have been noted in Cormecticut. 



See damping off, p. 60. 



