Show AIM TO PREVENT PLANT DISEASES fuch could be saved to future crops if care Is taken to av avoid oid infected plants CROP ROTATION IS HELPFUL setting of few clubfooted Club rooted plants plant I 1 may give start that will rum ruin garden for years wilts are easily transmitted 77 by the ui united cited states department of agriculture what a lot might have boon been sated if we could hate applied to crop production 20 reals ago what ia e know now about aboul tile the control of plant diseases and equally title tine ant a lot vi e could collid aae lit in future crops it if me e bould only apply the knox knowledge ledge that vie e have furuie 1 I uthie crops Is advisedly for the introductions of a disease into new soil nilly may allcut for earia to come tile dors planted on oil thai sull coil unless aule is radical and ex tensie e measures are taken to era eradicate dacate tin the rii ulease sease from the soil sa ct if tile the united states department of Agil agriculture culture infests soil boil for many Y years ears take for example case of club loot of the cru crucifers cifers 1 I e cabbage balillo ia lillo or mustard etc ele tile the setting of ft a few clubfooted club rooted plants antl may gite ghe the start that in a single season will make for or bears ears an otherwise good paiden gaiden unsuitable tor for cabbage and other cru crucifers cifers A case is known in hichi a cabbage in dennsil alila was abandoned 27 bears ears ago because of the prevalence of when cabbage was again planted the crop was badly affected tile the disease 1 l wb rv MJ 1 IN 0 P z A Club on young cabbage plant had been kept alive during all those thoe years by wild mustard and other oilier cruci fers that had grund grown upon the land as wels weeds Is not manifested in ill the top up in in early stages ot of development but may always he be seen on file roots if it Is s present at the time thile the plants are taken laken front from the seed bed an abnormal swelling stelling in any part of the root is an indication of the pie ence Rence of this disease dl sense in its inter stages the lie swelling smelling may inny involve the entire root as alion lit in the illustration and will ill invariably cause tile production of a poor lend another example is that of ruit root knot of a wide ilde mariety of plants io i 0 injurious in the southern part of the country tin and occurring also in ill some firlie of the more northern states stales it would 1 lie impossible to fhate how much royl root knot there was in III the south 50 yours years 4 A QC 1 aa A root knot on young tomato plant ago but it Is certain that the disease to ti becoming daoro wide spread every year this distribution Is due largely to 0 o lis ita by dl scaled plants solve ago aeo a carload of pota Ai lipped from frob oil wf otate to another to be used foi seed eed too lott at it was discovered that the potatoes pot atoe were infested with root knot producing eelworms eel worms which were of course seat scattered t ered far and wide ide by this means while alit le this may not have been the first introduction of the disease into that state slate it was wag at least one of many introductions which have resulted in the he wider and wider spread of root knot and tile llie loss jobs of millions of dollars sst set only clean plants tomatoes tobacco tolia cc celery peppers figs peaches end and many other plants 1 l re in likewise instrumental lit in carrI carrien ln t alil hk di disease disc sense nse As indicated by the lie name Us its principal princ I 1 is on te roots or of plants lit in the form forin of sn filings or knuts knots severe infestation will lv alt in III tile the and di fog anil hoftell tin tile of tile llie illint ii lint bitts cons constintine titine another ga croup or of diseases that in rian rn lit in I to f 1 I c A it i y 4 ae 14 I 1 1 A 1 4 1 J in advanced bage new sol soil by means of diseased plants they are manifested by a wilting wil aln 0 the nichole bhole plant these and tile the onea inferred lef erred to aboe may be anil and ought to be kept out of new land the wa to do it Is to set out only clean plants the may to keep the plants clean I 1 it to sterline ster lize the lie seed beds if steart steam pressure is available the inverted pai method described in farmere Fan Far ners merb Bull etil Is best such steam pressure may often be hild had in the greenhaus greenho usi from the boiler used for heating healing fol foi outside seed beds any kind of a stean boiler elther either on a stationary outfit ol 01 a steam traction engine win fuell plent of pressure if steam pres sure Is not available good results mt be accomplished by the hot ws ter treat indents advocated adoca ted lu in department bulle tin |