340 THE FORCING GARDEN. [>EB. 



Let the principal trees, and also the dwarfs in the 

 border, or in pots, be frequently examined for the 

 detection of that arch enemy, the grub, or small 

 black caterpillar, described and spoken of at p. 228. 

 It is often very troublesome in the cherry-house, 

 and is of a nature so mischievous, that too much 

 care and pains cannot be taken for its destruction. 

 It is generally to be found rolled up in the leaves, 

 in a kind of down; so that every leaf, curled or 

 rolled up, should be examined for it, and should be 

 picked off and burnt. See Destroying of Cater- 

 pillars, page 229 to 233. 



If the plants be attacked by the green-fly, let the 

 house be close shut up at night, and fumigated 

 with tobacco, until a person cannot see another in 

 it. If this be repeated the next evening, they will 

 be completely destroyed. 



tHE GRAPE-HOUSE. 



Of forcing established plants in the Grape-house. 



The reader is referred to this article for last 

 month. As there hinted at, I shall suppose the 

 forcing is to commence the first of February. 



Make the fires so moderate as that the thermo- 

 meter may not pass 50, or at most 55, mornings 

 and evenings, until every bud in the house have be- 

 gun to spring. This is. a point of very great im- 

 portance in the forcing of grapes. If the forcing be 

 commenced with a dash, as some fast-going garden- 

 ers term it, and if a high temperature be kept up 

 from the beginning, the chance is, that a third or 

 fourth part of the buds will not push, and of course 



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