OF FRUIT TREES. 89 



be proposed or discovered. Mr. P. recommends, 

 1st. Turning up the ground carefully in October, 

 as far as the branches of a tree extend, to half a 

 spade's depth or five inches, so as completely to 

 invert the surface. A great number of chrysalids 

 would thus be exposed to the air and sun, and of 

 course be destroyed. 2dly. Breaking the clods and 

 smoothing the surface with a rake, and passing a 

 heavy roller over it, so as to make it very hard, 

 and without cracks. By these two operations eve- 

 ry vestige of their downward path would be com- 

 pletely obliterated, and if any remained undisturb- 

 ed below the stratum of earth which has been 

 turned up, they must remain there, as it is utterly 

 impossible for them to force their way in the moth 

 or miller state, through such an obstruction as this 

 layer of earth would oppose to them. In grass 

 grounds the sods should be turned with the grass 

 side down, and placed side by side, so as to be roll- 

 ed ; the earth from which they were taken should 

 be loosed and rolled also. It is probable, that with 

 this treatment no moths would rise in the fall. The 

 winter's frosts would heave and crack the smooth 

 surface, but it might be smoothed and hardened by 

 the roller or other means, in March, with much less 

 trouble, time, and expense, than the long course of 

 tarring requires. As lime, when slacked, is reduced 

 to an impalpable powder, and is thus well adapted 

 to close the least openings in the surface to which 

 it may be washed by rains, Mr. P. is inclined to 

 think its good effects are produced in this way as 

 well as by its caustick quality." 



Mr. Kenrick's method of destroying the Canker Worm. 



John Kenrick, esquire, of Newton, proposes as 

 follows : From any time in June, after the worms 

 have entirely disappeared, until the 20th of Octo- 

 ber, let the whole of the soil surrounding the trees, 

 12 



