84 



CURRANT. 



Currant Gall Mite. Phjjtoptus ribis, Nalepa. 



Phytoptus eibis, greatly magnified ; natural length of female 0-23 mm. (By 

 permission, after Dr. A. Nalepa.) Black Currant twig with three buds affected by 

 Mite Galls, and one bud unaffected. 



Currant Mite Galls have continued to be as prevalent and to cause 

 as much loss to growers as in previous years. The only methods of 

 lessening the evil to some degree which appear to answer practically 

 is that of breaking off the galled buds and destroying them. 



Most careful and continued experiments at the Woburn Experi- 

 mental Fruit Farm as to effect of chemical dressings, of which I was 

 permitted to give tbe main points proposed in my Twenty-first Annual 

 Keport, pp. 154-158, were carried out, accompanied by microscopic 

 examination at intervals to ascertain whether the Mites in the buds 

 might have been destroyed by the applications without injury occurring 

 to the growth of the buds themselves. This, however, 1 believe, was 

 not found to be the case, and I only just allude (by permission) to the 

 general result here, as I understand that a detailed report will be given. 



