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e s     to study activity and properties
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s· 'I ‘e Mosaic Disease 0* ***8 Inmng  
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Q? By STEPHEN DIACHUN and LAWRENCE HENSON
In the 1957 Faii issne et Kgtntucky Farm and Home In these tests, clones of red clover were established ,
  SC’f€7T·C€, 2*1 COmm0n virus disease of red clover was de- and m9~1Ut?~111€fI qlllté Simply by cutting VlgO1`OUS
scribed, and the cause was identified as the bean yel- Young Shoots IIoIn Selected PI*Int$» I¤t¤¤s the r<>¤f€d cuttmss m St<->¤¤¤€¤· Most of them ¤‘€¤<>t·¤  ,. 'itZ'A't *#.—>s.··t;=?‘t¤ · r ·.,¤'  ·}¤%¤· . ..     -t-t.... .  
.   ’"’= #5 sf=?f’.s;::l'Yi%:‘¤Y;?*i§~ ·.»   ‘°·o*€*a  ·c?7     ?§‘#;?"‘i···t.f I",   ‘ *` ‘· »~<&t.       "   ‘
` ik i»·t    'i,€‘;=I"¢?f?`if§?·’.fii;§`?°¤é§°T—¥’£>1 It   ·‘  ;·L‘-  ’=i•'”*=i~€*  tg} lei -YY.   III    :t`   I`Ii```I        
. I" .  <’fio¤;**In  w i l "  ali'? ~ e‘VI§¥?’$?.M$C?1£il Y         I     
4 ·· fY$=*:IY}°.·7 ‘*·?.*€f»il{I?Y&?”;;¤?&“.»:7¢Z=i°€i?i.Y..`J·~s '}.é$°`$£?.°$l€i§*“i'>€·».¥i$·ff~lY ~.;>n~     .   I . .   iite.   :  ri.;  
Fig. l.—(left) This plant of susceptible clone (KyC4-9) shows dying) in this plant of clone (Ky(Z7l-8) is spreading from
signs of mosaic, (right) This resistant plant is of a clone dead spots on the leaves. See Fig. 2 for a close-up view of
(Ky(14()-2) that does not become readily invaded by the dead spots on a clover leaf that remained localired and
_ · mosaic virus. (center) The systemic necrosis (or complete did not spread.
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Kt;>:·1·t‘c:xY FARM Asn Hour; Sc:11aNc:1z—SUxtxtt;a 1909 3