AtJRIClLTlKAL Al'l'llOPRIATtON ull.i^ I'.rZi. 



149 



Mr. Blciiaxax. And slowly^ 



Doctor Kkm.kkman. And slowly; and that tlu- an-a to be trculrd 

 is only that vth^v of a \ Jird or more that is acliudly killirj^ thf plants, 

 tliat that is the \}\inc wln-rc the fun<;ns is j^rowitij^ niid domj; its 

 daiuajjc; inside of that urcu or outside of that area no treatment is 

 necessary. 



Mr. lU ( iiA\.\.\. Down honu- tiie [)at<-hes that die from th< iw.ii i<,t 

 an* s«)lid patches, p-nerally. 



Doctor Keli.kkma.n. That is true, but that is bcrnu.se an infection 

 be<;ins and spreads over a consi<h'rabIc area, and tlie infecteti cotton 

 will die as the sea.s»tn continues. Replanted ((•Hon in the center of 

 the area, however, will not be killed. 



Mr. liLtiiANA.N. Are you making any investigation as to the drv 

 culture in cotton States proper^ 



D(»ctor Kkli.kk.ma.n. That is one of the main things that we are 

 anxious to use this additional money for. This investigation tliat 

 we liave been carrying on has been carried on as a side issue to our 

 Southwestern cotton work. We have no funds, without seriously dis- 

 organizing i)tlu'r imj)ortant projects that are yielding important 

 results, to provide for experimental work in the nonirrigated cotton 

 areas. 



The very active wnik on this disease has not ])een prosecuted during 

 recent veal's in the Cotton l>elt, l)ecause all of the leatls that have 

 been followed have not been especially productive, and at the present 

 lime we have felt that we were getting more benefit out of the money 

 that we were spending on plant-ilisease control work on other diseases 

 than on the cotton root rot, sometimes called 'Texas root rot." 

 because it is a serious matter in Texas. 



Mr. lUciiAXAN. I know it is. Is it in ail the cotton-producing 

 States i 



Doctor Kellermax. It is more troublesome in the Southern 

 States — in the hotter States. 



Mr. Br( iiAXAX. Have you ever noticed it is worse in Texas on 

 black ianil than any other ^ 



Doctor Kellermax. Yes, it is much more destructive there. 



Mr. Bl'chaxan. Changing the subject, is this fund the one that 

 carries boll weevil? 



Doctor Taylor. No, sir; that is in the Bureau of Entomology. 



Mr. BucHAXAX. There is no bulletin on this yet, is there ? 



Doctor Kellermax. A paper on this subject Ls now being pre- 

 pared. A ilescription of this work probably will take shorter space 

 m the paper that is j)repare(l than the way 1 iiave describiMJ it. 



Mr. BucuAXAX. It will be printed ? 



Doctor Kellerm.vx. It will be printed very shortly, 

 that you get a copy. 



1 will see 



IKCRE.KSE FOR POTATO DISKA.SE WORK. 



Doctor Taylor. The other S7.500 of the S 10,000 is needed for 

 potato-disease work. The potato crop is now produced under con- 

 ditions so widely iliverse and in regions so far apart and so far from the 

 consumer, who. together with the producer, pays the freight on 

 potatoes in larger measure than on almost any otlier staple foodstuffs, 

 because of the watery character of the potato that it nas reached a 



