194 GREEN-HOUSE OF ORANGES, LEMONS, &C. [/>?. 



In taking hold of the leaf, it feels soft, and altogether seems 

 to have lost its nutritive substance ; and, when the young 

 foliage expands, it becomes covered with dark brown 

 spots, and finally very much disfigured; and, when in this 

 state, the red spider is severe, and, ultimately, death en- 

 sues. 



If any of the plants are affected as above described, take 

 a sponge, and wash every leaf minutely with soft water, 

 and syringe them with water three or four times a week, 

 which will clean them. All the young foliage will be 

 healthy, and that which has been affected will fall off. 

 However, prevention is better than cure ; and if the Came- 

 lias are properly syringed every evening during summer, 

 and once or twice a week during winter, they will never 

 be subject to the ravages of that destructive insect. 



Tie up any of the flowers that are expanded to stakes, 

 in case of accident; and, in syringing, observe not to let 

 any water fall on the flowers, as it causes premature decay 

 and change of colour. 



OF ORANGES, LEMONS, &c. 



As there will perhaps be more leisure in the green-house 

 this month than in any other during the winter, it is pre- 

 sumed that there will not be a moment lost. If any of the 

 trees are infested with insects, these, being now in their 

 inactive state, may be more easily destroyed than at any 

 other time. It is the brown scaly insect that generally 

 infests them. For treatment, see Hot-house, January. 

 The plant or tree, after being washed, before it becomes 

 dry, will require to be syringed with water, otherwise the 

 dust will adhere to the glutinous particles of the soap. Set 

 the plant in an airy situation to dry, in case of damp. 

 There are several others subject to this insect, such as 

 Myrtles, Oleas, Oleanders, &c., which treat in the same 

 manner. Be careful that these trees are not over-watered ; 

 if the soil is moist, it is sufficient. 



