188 GREEN-HOUSE — OF CAPE BULBS, ETC. [January. 



substance ; and when the young foliage expands, it becomes 

 covered with dark brown spots, and finally very much dis- 

 figured; and when in this state the red spider is severe, and, 

 ultimately, death ensues. 



If any of the plants are afi'ected 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, preven- 

 tion is better than cure; and if the Camellias 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 color. 



OF ORANGES, LEMONS, &c.. 



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

 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 in- 

 active 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^ J anuary. The plant 

 or tree, after being washed, before it becomes dry, will re- 

 quire to be syringed with water, otherwise the dust will ad- 

 here 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^ Olean- 

 derSj &c., which treat in the same manner. Be careful that 

 these trees are not over-watered; if the soil is moist, it is 

 sufficient. 



OF CAPE BULBS, &c. 



If there are any out of the ground, it is time that the 

 whole were potted, such as Lachendlia, Wachendorjia, 



