INSECT PESTS AND DISEASES 37 



It is generally attributed to too gross feeding. Im- 

 mediately it makes its appearance all stimulants should 

 be withheld, and the atmosphere kept as light and dry 

 as possible. In fact, from the time the Chrysanthemums 

 are housed, the atmosphere should be kept in this condi- 

 tion. Reduce ventilation at night, and should the day 

 break wet, damp, or foggy, do not increase the former 

 in any way, but allow a slight warmth from the pipes 

 to be felt through the houses. Also another rule should 

 be observed. Do not over-water plants at any time, 

 particularly in dull weather ; give sufficient and no more, 

 and never allow pools of water to form in the path, or 

 lie in the house, as this is a direct incentive to a damp 

 atmosphere, which may bring all kinds of disasters in its 

 train. 



