24 ORCHARD- HOUSES. 



the petals most of them fallen : a dry atmosphere 

 will now be injurious. Syringe the trees with soft 

 water early in the day, so that the leaves may not 

 be wet when a hot sun shines on them. As the 

 temperature increases, do the same about four 

 o'clock, and shut the house up while warm. Why 

 should you lose the advantage of the heat that 

 the house has acquired, by giving air all night, as 

 recommended by some persons ? The plants will 

 soon show you, by their appearance, that they, 

 equally with the Vine, enjoy the still warm and 

 damp atmosphere, and the red spider will have 

 but little chance of thriving. If you put half a 

 pint of tobacco water into a large watering-pan of 

 soft water when syringing, say once a-week, it 

 will be found a great preventive of insects, though 

 it would not be strong enough to kill them if you 

 had allowed their increase. If any leaves are 

 perceived having a mottled appearance on their 

 upper surface, there will probably be found red 

 spider on the under side. If they cannot be seen 

 with the naked eye, a lens will be an assistance. 

 Syringe with plain water first to wet the foliage, 

 and then syringe the under side of the leaves with 

 2 ozs. of Gishurst to a gallon of soft water, and 



