| Show POWDERY SCAB OF POTATO S CAUSED BY OLD SACKS V Government Issues a Bulletin Bulletin Bulletin Bulle Bulle- tin Telling How to Stop the Disease W WASHINGTON D. D C. C April 10 I Powdery scab stab of ot the potato Is a European European European Euro Euro- disease which doubtless followed Imported d potatoes before the quarantine law went ent Into effect ct Every possible effort Is being made mado by the United States department of ot agriculture to prevent this thle disease making inroads on our potato In Industry industry in- in and th the operation co n of at all aU In Interested In- In In this crop Is ls much needed In dealing with this new potato malady The Tho department department Is la Issuing a bulletin entitled Powdery of Powdery Po Scab of Potatoes which thoroughly explains the disease and gives 8 all the the tho practical advice ad available ble at t the present rc regarding Its Us control Pow Powdery ery scab cab does not attack tho the portion portion por por- r- r tion ot of the potato vines above tho the ground It Is Sa primarily a a. disease of th the tho young tubers tubers' which develops as they mature In the ground round T Tho he disease is apparent b by small slightly raised pimples and a slight ht discoloration of at the surface surf surface o. o When cut oJ open n the infected arc areas area's s appear fr faintly purplish and extend from approximately the outermost cells coils of at th the a tuber toward the deeper layers The Tho seriousness of ot powdery scab cab may b be realized from the following statement b by a cons conservative Canadian scientist The disease should by no means be regarded lightly Severe attacks attack IS occur when potatoes are planted year after year car on infected d land Where this Is ls practiced the result will ill bo be potatoes potato e hardY hardly superior In quality to those badly y effected with the canker This fact tact Is worthy of notice especially since aa u inthe In Inthe Inthe the case caso of canker anker no preventive measures measures meas meas- ures urea have proved OO of ot much value It As yet et no o method of controlling this disease when It once gets In tho the soil has been tou found d. d The new bulletin of ot the department relates the tho results of certain experiments which are arc interesting but they are of such a preliminary nature that further study will be required before they can be recommended The b best beat Ht advice ad- ad vice that can cam can be given a a. farmer whose fields have produced a a. crop Infected with pow powdery er scab Is lis this Dont Don't grow potatoes potatoes potatoes pota pota- toes for several years ears on a a. piece of land that has produced a crop Infected with this disease It Is not yet known how many years the fungus may live Ue In the soil soli but Its nature suggests that it can probably live Uve for tor several Yea years Sacks and nd Barrels nets as Agents in Spreading Spread Spread- ing Powdery Scab It la le well wail known that second hand sacks catka barrels and boxes are often otten used In marketing potato potatoes Seed Bed J potatoes shipped from the Northern North North- ern states elates to be grown In the South are put up either elthor In sacks sAck or barrels European European Eu- Eu potatoes coming to this country l Jure tore f d in pound jR R gunny f sacks in I some of ot tho the Western state t similar t If but holding 1 iu 10 u uto to ISO 10 q pound are used t I J J These sacks cost from 1 12 to 16 cents each depending upon their quality and whether they are new or second hand Sacks of GOOd good quality can bo be use used man many times Umes and this has bas come to be bo common practice In both New York and Boston there are arc firms that a. a act t as clearing houses for tor potato sacks buying second hand sacks from anyone Ono who may wish to sell them and skipping shipping them thorn to potato dealers either north or south It may happen therefore that sacks that ha have havo 6 previously contained diseased tubers com coming IDS IDS' from Europe or elsewhere will be used for tor shipping select seed from tram the North to the South There Is considerable chance of ot po potato to diseases being beings spread read by means of ot old sacks Second hand hand barrels may also communicate these theo diseases The question ques ques- question tion Uon arises as to how this spread l of or dle dis disease ease casc cun can bo be prevented pre 1 and of or coun course e tho the solution Is I a simple one one one-by by 11 wins using ln only lc w hacks I |
