247 



THE APPLE SUCKER, WITH NOTES ON THE 

 PEAR SUCKER. 



By p. R. AWATI 



{Sir John Wolfe-Barry Student, Imperial College of Science 

 and Technology, South Kensington). 



(With Plates XVH, XVIH and 21 Text-figures.) 



The following pages contain an account of a study of the apple 

 sucker made by Mr Awati at Acton Lodge, Brentford, during the summer 

 of 1913. The fact that the life- history of apple suckers occupies one 

 year implies that in one season no stage repeats itself, and Mr Awati 

 could not repeat or check the observations he made. 



The most notable point brought out is perhaps the nature of insecti- 

 cides; so much spraying is done against apple sucker with so little 

 result, simply because the fruit-grower knows no way of checking his 

 results, that the method here adopted should be of interest to fruit- 

 growers generally. It is quite simple and does give a real check on the 

 results one is getting. 



