230 



THE VINE CROPS 



tillage, and to use a three-row sprayer. For large areas, a geared- 

 power row-sprayer may be employed (Fig. 52) . On stumpy ground, 

 or where the vines have not been turned, a few rows may be turned 

 to make driveways every sixty feet, and by the use of a long hose 

 a strip thirty feet wide can be sprayed on each side of each drive- 

 way. 





^«» "^^-rL -> -^ 





Fig. 136. — A muskmelon vine killed by rust. 



Fig. 137. — A muskmelon vine protected from rust by spraying. 



The introduction of rust-resistant varieties of muskmelons 



within the last few years has made it possible to avoid severe 



injury from the rust without resorting to spraying, and 

 where these varieties are grown, spraying for the rust may 

 be unnecessary. 



