INSECTS INJURIOUS TO THE ROSE. 17 3 



with a sheetj if against a fence, or when fully ex- 

 posed, all round ; place a covering over it in the 

 form of a tent, then introduce the nozzle under the 

 covering, and by a simple turn of a handle, the 

 tobacco smoke is delivered cool in a dense mass, an 

 with the greatest safety in the hands of any operator. 

 The implement is also indispensible in fumigating 

 green-houses, wardrobes, ships, or dwellings during 

 epidemic diseases. It can be used as well for purpo- 

 ses of perfuming with lavender, cinnamon, or other 

 aromatic herbs. The Rose Bug is another very de- 

 trusctive enemy, which can only be kept under by 

 handpicking; they are found upon the flowers as soon 

 as open. There is also the worm that destroys the 

 bud before it opens. We seldom observe this in the 

 country, but in some seasons it abounds in the city 

 or town gardens, and must be extirpated by the hand. 

 There is yet another ; a fly in the early part of 

 June, deposits its egg near the surface of the ground, 

 into a strong young shoot, and is not discovered till 

 July or August, when we see its effects from the 

 dropping of the top of the young shoot. As soon 

 as this is noticed, cut off* about twelve inches of it, 

 and the little grub will be found in its centre, which 

 if allowed to remain will come out under a leaf, near 

 the top, drop into the ground, and live again to renew 

 its depredations the following season. 

 15* 



