FRUIT TREES AFTER FORCING. 255 



with bellows, in this way a strong thick smoke 

 can be produced, which will greatly assist in 

 destroying the vermin ; but as many will fall to 

 the ground apparently lifeless from suffocation, 

 but will afterwards recover and ascend the trees 

 again, a tolerable watering over the borders, 

 immediately after the smoking, will effectually 

 destroy them, also by syringing the trees it will 

 dislodge those which may not have fallen ; this 

 system of smoking is by no means to be dreaded, 

 on the contrary, it is beneficial to the trees, and 

 if occasionally performed even in the absence of 

 insects, it will assist the growth of the trees, and 

 also promote the swelling of the fruit, and with 

 proper care and attention the house may always 

 be kept free, at least sufficiently free from in- 

 sects, to prevent them from being seriously 

 injurious. 



THE SEASONS THE DIFFERENT VARIETIES OF 

 FRIT1T GENERALLY ATTAIN MATURITY IN 

 FORCING HOUSES. 



Par. 42. — By the foregoing practice in 

 forcing fruit trees, the different varieties may 

 be expected to ripen in the following order. 



