ill i 1 i'l i o i i ii L> V 1 N ^ 3 
flood, it is nnjiecefl'ary to fay much upon this head ; I Hiall 
therefore only beg leave to fubjoin the following obfervations ; 
I ft. It would be improper to fumigate either Vinery or Pine- 
ftove, where there are Vines late in the fpring, or in the fum- 
mer, becaufe the fmoak would injure the grapes, by giving 
them a difagreeable flavour. 
adly. When either a Hot-houfe or Vinery is infefted with 
any of the above-mentioned infedls, or when they may have 
been very numerous the preceding feafon, it will be neceffary 
to deftroy them effedtually, before the Vines come into flower; 
and this may be done by fumigating two or three different 
times, at the diftance of three or four days between each 
operation. 
Pine-ftoves are much more liable to be infefted with thefe in- 
fers, than either Grape-houfes or Vineries, becaufe in the latter 
it is ufual to take off" the glafs-frames during the v/inter, by 
which means the infects generally perifh : But the warmth of 
pine-ftoves ferves to protedl the infcdts through the winter, as 
I have already obferved. 
In Pine-ftoves, the Thrips are often greatly encouraged by 
many kinds of vegetables kept there, and particularly by 
kidney- 
