REPORT ON INJURIOUS INSECTS FOR 1904. 



FIG. IV. SHOOT OF Cox's POMONA APPLE WITH MITES IN THE BUDS. 



A. Portion of shoot ; a, lower part where sound in bark, wood and pith ; 

 b, bud swollen and tissue slightly excrescenced around and below ; c, buds quite 

 small and dead-looking, but tissues slightly excrescenced below the joint ; d, 

 bud small and dead, but tissue around swollen and slightly shrunken on sur- 

 face ; e, bud quite indistinct and slightly swollen ; /, shrunken tissue around 

 sunken bud ; g, upper part of shoot where evidently pruned to, sound. 



B. Portion of shoot A , above and below bud d, showing h 6- k, bark healthy; 

 i, wood sound ; /, pith clear at upper part ; /, wood sound ; m, pith clear ; 

 n, small openings in tissue beneath bark ; o, vertical section of bud ; p, perfor- 

 ations in tissue of bud and entire obliteration of central axis of growing point. 



C. Section through bud A,b ; q, outer bark slightly corrugated ; r, inner 

 bark or cellular tissue in place of bud scales ; s, interior of bud composed of 

 cellular tissue ; /, apertures in cellular tissue with hairs issuing, x 3. D. Mite, 

 evident cause of diseased buds, x 200. E. . Bit of tissue from gall C at t ; it, 

 rellular tissue ; v, erineum or hairs; a;', mite, x 100. F. Eelworms Jr_om 

 dead, shrunken and decayed bud, A f ; x, male ; y, female ; z, young, x 100. 



