20 ORCHARD-HOUSES. 



day must be lost in getting rid of it, or you may 

 give up all hopes of Peaches for one season. These 

 pests increase so rapidly, and the Peach leaf is so 

 tender and liable to curl, that great mischief is 

 done before you are aware ; and though you may 

 recover the plants, the fruit is gone. Tobacco 

 smoke will kill the green smother-fly, and so will 

 tobacco water, but the latter must not be used 

 whilst the plants are in bloom. If the copper- 

 coloured aphis is seen, smoke at once ; but do not 

 trust to smoke ; look the plants over, and if you 

 see any insects alive, touch them with a small 

 painter's brush that has been dipped in a mixture 

 prepared in the following manner : Boil Ib. of 

 quassia in a gallon of soft water for ten minutes, 

 strain, and add to the water Ib. of soft soap. No 

 species of aphis can withstand this application. 



I have lately heard a very high character of 

 the tobacco paper prepared by Griffiths and 

 Aviss, of Coventry. It is very cheap, and said 

 to be far more efficacious than tobacco for fumi- 

 gating. I have ordered a large quantity, and 

 shall be happy to let any one have a little to try 

 its effects. 



Let me repeat : you must keep your plants free 



