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TREATISE ON THE CULTURE AND 



Be always careful that your trees get dry before night, and 

 be fure never to water when the fun is on them ; nor yet 

 water them with the grounds of the lime, which will make 

 the trees look very unfightly, and alfo injure the leaves. 



When aphides are numerous at the ends of the iTioots, the 

 leaves there will be curled up ; thefe fhould be all ftript 

 off, and the infects crufhed with the foot. 



Of the Acarus. 



The Acarus, or Red Spider, is one of the mod deftructive 

 infects that can infeft plants, particularly in forcing-houfes. 



Thefe infects have no wings, and the female is oviparous. 



There are not lefs than 82 fpecies of this genus. The 

 acarus is very common on trees, particularly the Currant, on 

 the fruit of which it is frequently feen running. 



Thefe infecls attack the Vines, Nectarines, Peaches, and 

 Cherries ; and forced French-Beans are very fubject to their 

 depredations, as are alfo Peaches and Nectarines on the 

 natural wall, in hot weather. Melons in frames are very 

 much inferred with them. I once faw a ridge of Melons, of 

 feventy lights, lb much injured by them, that when the fruit 

 was full-grown, it was good for nothing, and the Items and 

 leaves were completely exhaufted of their moifture by thefe 

 infects feeding on them. They are equally hurtful to moil 

 exotics in hot-houfes. 



The belt thing that I know for destroying thefe pernicious 

 infects is moifture ; which will alfo deftroy many other 

 infects in hot-houfes. 



Fre- 



