RECEIPT BOOK. 176 



the body of the tree, and fill it with spirits of tur- 

 pentine, and cork it un, as before. Where the 

 latter article is put into the hole, it should be bo- 

 red slanting downwards, to keep this liquid from 

 running out before the cork caivbe put in. 



If these remedies are effectual, and we have 

 considerable confidence in them, it must be owing 

 lu the essence of either of these substances be- 

 coming diffused throughout the tree, and thus 

 rendering it noxious to insects. 



Caterpillars. 



The above directions, for keeping Canker- 

 worms from trees, are equally applicable to these 

 insects. 



Grubs. 



Large maggots produced from the eggs of a 

 species of the Butterfly, very injurious to Indian 

 C5orn, while young, by eating the roots. Fre- 

 quent ploughings, manuring the land with lime, 

 Boot, ashes, or salt, all tend much to keep ihcm 

 out of the soil. 



Thp or spindle-<vorm» 



White worms, resembling Grubs, found in the 

 central hole which is. formed by the leaves of In- 

 dian corn; and they there eat off the stem which 

 forms the top of the plant. They are mostly to 

 be found near barn-yards, and in rich spots. 

 ' They ere discovered by their excrement appear- 

 ing on the leaves. Sprinkling the com with a 

 weak lye of wood-ashes will extirpate them. 



Black Worms. 

 Ash-coloured worms, with black strioes on their 



