THAT INFEST THE VINE. 



1?3 



young shoots of Vines are sometimes infested 

 with the Aphides ; but as Vines generally grow 

 exceedingly rapid, these insects do not often 

 greatly injure them. 



4. There are two or three kinds of Cocci that 

 sometimes infest the Vine, viz. the Coccus Hes- 

 peridum, and the Coccus Adonidum. But as such 

 instances rarely occur, and these insects are not 

 very prejudicial to the Vine, I shall pass over 

 them with only observing, that the latter of these 

 are sometimes mistaken for the crimson-tinged 

 Pine-bug. These often abound both in hot-houses 

 and conservatories, and breed upon many kinds 

 of plants kept in them, such as the coffee-tree, the 

 oleander, &c. 



Having mentioned the several species of insects 

 with which the Vine is liable to be infested, I 

 shall now lay down the proper methods for de- 

 stroying them. 



All the foregoing species of insects, the Acarus 

 excepted, may be destroyed by a strong fumigation 

 of tobacco. 



The method of fumigating hot-houses, &c. 

 either by the bellows or by the smoking-pot, being 

 now generally understood, it is unnecessary to say 

 much upon this head ; I shall, therefore, only beg 

 leave to subjoin the following observations : 



1st. It would be improper to fumigate either 

 Vinery or Pine-stove, where there are Vines late 

 in the spring or in the summer, because the smoke 



