l6 REPORT ON INJURIOUS INSECTS FOR 1907. 



" Wanderer," replying to the above states, " It is gratifying to note 

 in the article of ' L.F.D.,' page 439, that Mr. Collinge's remedy for the 

 Black Currant mite is proving effectual. According to ' L.F.D.' the 

 main point is never to miss giving the application in May. The earlier 

 dustings in his case do not seem to have done very much good. It 

 should, however, be borne in mind that the season last year was a 

 peculiar one, and it is quite possible that the migrating season of the 

 mite was in consequence delayed. 



Mr. J. Easter also records his satisfaction at the results obtained 

 by the use of the lime and sulphur remedy, notwithstanding the fact that 

 the lime used in his case had been slaked. If air-slaked lime should 

 prove as effectual as ground lime, it will undoubtedly prove an advantage, 

 because of the lessened danger of burning the foliage. At any rate, 

 growers now seem to have a reliable weapon in their hands. If they 

 fail to use it, they have themselves only to blame." 



SUMMARY : To any unprejudiced mind I think it will at once be 

 clear that the lime and sulphur treatment is proving effective. 



In the earlier experiments it is now certain that too much lime was 

 used and this resulted in damage to the leaves and blossoms. 



Various correspondents have assured me that they have obtained 

 excellent results with the use of air-slaked lime. 



In conclusion, I should like to express my personal thanks to the 

 many hundreds of growers who have experimented with the lime and 

 sulphur treatment, for I feel it is largely due to them that it has 

 been shown that we can control, if not exterminate, a pest which at one 

 time seriously threatened the cultivation of Black Currants in this 

 country. 



