106 PRESENT-DAY GARDENING 



so prevalent during the past three or four years. As a 

 preventive, the cuttings should be dipped in a solution 

 of sulphide of potassium, half an ounce to a gallon of water 

 before they are inserted, and again while they are in small 

 pots. This will usually keep them quite clean during the 

 early part of the season, and another spraying over the 

 whole of the older foliage before they are housed will still 



FIG. 3. Chrysanthemum leaf affected with the rust fungus (Pucdnia Hicracei) 

 (From the Gardeners 1 Chronicle] 



further ensure their immunity from rust. This is the only 

 preventive I have used, and it has kept my plants practi- 

 cally clean even though I have introduced to the collection 

 plants badly infested with the fungus. 



Mildew. This is very troublesome in some districts, 

 but if the plants are treated as advised above for rust, 

 mildew will stand no chance of spreading, as the sulphide 

 of potassium keeps the leaves free. The only other remedy 



