Diseases of plants in the United States in 1929 /

Abstract

(Ustilago tritici). The usual situation appeared to exist as far as this disease was concerned, the loss for the country'' being about average which is slightly ove;-one per cent. Notable exceptions were Missouri, North Dakota and Kansas. In Missouri it was said to have been one of the worst years for loose sraut , the estimated losses averaging 4 P^^c ent. In North Dalcota favorable ' weather for infection in I928 resulted in increased amountsabout 2.5 per cent and as high as 10 per cent was observed in some fields. In Kansas it was more prevalent than usual, especially in the northeastern part, but the losses did not average over a ttrace for the State as a whole. Field observations in Pennsylvania showed that the varieties Leap and Forward continued to be resistant.-Percentage losses are given in table 2. P.D-R.-pages 50, 07, I05, I23*