FIIIST IIKPOIIT OX KroXmilC ZOOLOdY. 



G R U 1' E. 



Animals which concern Man by causing bodily injury or 

 disease, both possibly of a deadly character, to (A) his 

 stock of Domesticated Animals, (B) his Vegetable Planta- 

 tions, or (C) to Wild Animals in the preservation of which 

 he is interested, or (D) Wild Plants in the preservation 

 of which he is interested. 



SUB-GKOUP B. ANIMALS WHICH C ATSK INJl'KV AND 

 DI.SKA8E TO MAN'S YP:(;ETA1;LE I'LANTATIONS. 



Section T. 

 Animals Injurious to Agriculture. 



CEKEAL TESTS. 

 Eel-worm Disease in Oats. 



Some oat i)lants, sent hy a c-onesixmilent <»f the I>oaril fnun Soulli 

 TawtuD, Devon, tVuni a Held that wa.s seriously ilama^'ed.were fouutl 

 to be att^K-ked by eel-woniis {Tylcnchns dcvastatriv, Ktilin). The 

 popular names for the disease these eel-womis cruise are " tulip-itM.t " 

 and " se<,'ginfj." This (hsea.se takes its name from the swollen 

 apj>earante of tlie base of the stem. This .swollen ba.'^al part is 

 siUTounded in most ca.ses with contorted .shoots of a jwile unhealthy 

 Inie. The minute eel-wonns are found in abundance amon;,'st the 

 defonned shoots and in the stem (at its base). This sinxies of 

 eel-wonn attacks chiefly oats, lye, clover, onion.s, turnips, b»it also 

 occurs in wheat, buckwheat, and various wild grasses, as swcct- 



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