On Blight. 337 



lime is, no one could discover that an application of it had 

 been made. — Jonathan Couch. PoljJerro, Cor7iwall, 1830. 



The Sublimate of Tar is a Means of destroying the Jtphis 

 lamgera. — " In the garden of the Rev. W. Wharton of Gil- 

 ling, under the care of Mr. J. Bainbridge, the sublimate ot 

 tar has been used for the cotton blight, and with complete 

 success, as it has in no instance failed in eradicating that 

 obstinate and destructive insect. The mode of using it is as 

 follows : — take a common painter's brush, and with it rub 

 any part of the tree that is affected ; a day or two after, ex- 

 amine the tree carefully, and wherever you find the insect to 

 have burst through the tar, rub it till it is completely covered. 

 When a wound is made in the tree from the tearino- off of a 

 branch, or any other cause, a timely application of tar will 

 prevent the insect from obtaining an entrance." {Birming- 

 ham Journal.^ June 9. 1832.) 



Train Oil applied to the Aphis lamgera ^ith a stiff-haired 

 Brush is a Means of destroying it. — In my father's garden 

 the codlin is almost the only kind of apple the trees of which 

 are infested with this insect, although trees of several kinds of 

 apple grow in the garden. The insects occur in white woolly 

 clusters about the stem and branches, nestling in the hollows 

 and pits so usual in the stem and branches of the codlin. 

 The insects so clustered and situate my father destroys with- 

 out much difficulty by rubbing in amongst them, with a stiff- 

 haired brush, train oil ; and what the pungent hairs of the 

 brush do not stab to death, the oil tends to kill by suffocation, 

 as oil serves to render impervious to the admission of air 

 those breathing holes in the sides of insects by which their 

 respiration is effected. — J. D. 



Oil and Soot, isoell mixed together, and. applied, to the Jtphis 

 lamgera, destroy it. — B. B. states (Vol. VIII. p. 52.) that he 

 has " found oil and soot, well mixed together, and rubbed in 

 with a brush, an effectual cure for the A^'phis lanigera on 

 apple trees ; for, although it has appeared again on the same 

 tree, it has never again attacked the parts of it which had 

 been once well saturated with the mixture." Other remarks 

 on, and prescriptions for destroying, the A^phis lanigera will 

 be found in this Magazine, Vol. I. p. 388., Vol. II. p. 49, 50. 

 165., Vol. III. p. 30., Vol VII. p. 244. 379. 721, Vol. VIII. 

 p. 52. 149. 357. Besides the information which may be 

 found in these places, we may append the following remarks 

 on this subject : — 



Sir, In reading in your Magazine (Vol.11, p. 49.) of an 

 effectual remedy to destroy the American A^phis, an ex- 

 periment I tried three years ago was brought to my mind. 



Vol. IX.— No. 44. z 



