3i6 



DISEASES 



Sect. XIV. I.I. 



grafe-Jlalh. Caprification. F luck pears to ripen them. IIL Difeafes from 



infed 



From their nefis and young. On rojt 



hlojfc 



thijili 



Aphis on peach trees. 

 The poifon of yew lea 



Slugs prefer withered leaves. Cows eat withered 

 'CS. Hijlory of the aphis. Means of deflroying 



Aphidivorous larva and fly. 3. Caterpillars on apple-trees and go oft 



Burn the leav^ 



fringe round goof eh 



Dejlroy white hutterfi\ 



Cahhage caterpillars deflroyed ly ichneumon fly 



Infers in hot-houft 



vffulph 



# * 



5 , Beetles leneath the foil. Snails 



Slug 



Smoke 

 Roll 



turnips before fun-rife. Slugs prevented by lime or fait 



'ht by a hoard.. Fly 



turnip 



Roll 



Steep turnip feeds in liquid manure as in China. 6. Beetles 



Fern- chaffer. Dejlroys crops of wheat 



wheat (hallow. Roll ity orf, 



fait in fne powder. Thrips phyfaphus on wheat 



butterfly . May - chaffe 



hedg 



Locufi 



Encourage hedge-birdsy larks y rooks y hedge -hog. 



caterpillars wholefome to eaty others poifonoi 

 Jlroy. IV. Deftruclion by vermin, i. 

 granaries. Encourage the breed of ozvls. a 

 from afijh-pond. They eat vegetables. Are attracted by f cents 



them 



How to entrap them. 3 .. Moles never drink. Sometimes f 



. Some. 



s. All very hardy and difficult to de- 



Mice. Tuffocks of wheat from their 



Water-rats like beaverSy how driven 



to poifon 

 Vk^ork 



before fun-rife. How to defiroy them by traps. 



The difeafes of vegetables may be divided into thofe, w^hich ap* 

 pear to originate from internal caufes, thofe from the external ele- 

 ments, and thofe from the nidifications or depredations of infeds ; 

 to which may be added the depredations of other animals. We fhall 

 begin w^ith difeafed irritability. 



DISEASES FROM INTERNAL CAUSES. 



L I. 



It has already been fhewn, that the buds of vegetables are 



individual beings, and conftitute an inferior order of animals ; and 

 that they poiTefs irritabiUty, and fenfibility, and voluntarity, and have 

 aflbciations of motion ; as explained in Zoonomia, Vol. I. Sed. XIII. 



But as the three latter kinds of excitability are pofTefTed in a fo much 



lefs 



] 



