Show CARRY DISEASES TO NEXT YEARS CROPS woods though mot most often recognized text because of the pate space they oe or their are also re VI lible for carrying over winter many diseases very frequent types pea of plant i tede eeds located la in protected places around tho the building buildings etc ete 7 harbor in beets and plant diseases which would ordinarily be killed by winter condl tion tiona when spring comes such place places form sources of infection for epidemics tit bt rop top diseases dilea aex another way in which weed weeds may be carrier carriers of plant disease it Is by some part of th weed such as the roote roots of biennial and types abie which h become In festel the causing the mottled and yellow condition on so frequent fre luent with to inato and potato and known as mosaic ie is v example cited by 11 II 0 cowig of the ohio station U alike most other plant disease the soi rc 3 of tl infestation Is not the eced seed or the moll but is in tic the underground stems and roots of plant plants closely re to the tomato such as tho the varieties of ground cherry borso net tie fie matrimony vine and not long ago dr loung oung traced a cosino infestation which waa was literally destroying tilo tomato crop in a large rh to the aced bed the seed bed w was almost matted over ever with a growth of horse nettle and ground cherry both of which produce a peri perl root and are infested with moa illos ia bac e the so called rum lag out diseases of potato lie says are of the same type und spread much raw h in the same way ay |