. Diseases of cereal and forage crops in the United States in 1922. Grain Diseases and pests United States; Forage plants Diseases and pests United States. 178 II . ^uppl. 21; 15;^- X-'^'cL) u iii 1^21 the heaviest loSSc'" from loo^e smut occurred in the soft red winter v/heat area. An examination of the accompanying map A||(Fig. 17-) and a comparison of it with a map shov/ing the production of soft red winter v/heat shows that the same correlation holds for 15)22. It v/ili be noted also that Hunger ford, in Idaho, reported a loss of l.^/^* '"^e observed that the I disease was becOLu
. Diseases of cereal and forage crops in the United States in 1922. Grain Diseases and pests United States; Forage plants Diseases and pests United States. 178 II . ^uppl. 21; 15;^- X-'^'cL) u iii 1^21 the heaviest loSSc'" from loo^e smut occurred in the soft red winter v/heat area. An examination of the accompanying map A||(Fig. 17-) and a comparison of it with a map shov/ing the production of soft red winter v/heat shows that the same correlation holds for 15)22. It v/ili be noted also that Hunger ford, in Idaho, reported a loss of l.^/^* '"^e observed that the I disease was becOLung increasingly severe in the southern p^rt of the state on i Dicklow, a coirmon vmite v;heat which is especially susceptible to loose smut. I Pig. 18 shov's t-iat pr-;ctically all of the Dicklow \/heat t^r^vn in the United States I is produced in southern Idc;.ho, which accounts for the high loss there as compared with neighboring states. The subject of resistance to loose smut hns been given considerable attention in Survey sumrriarics for other years (Pl. Dis. 3ul. Suppls. 15 and 2l), In Supple- ment l^j there were summarized the results obtained in the cereal survey of 1919* Be- low in Table 63» are listed the susceptible and resistant varieties as reported by collabor-^tors to the Plant Disease Survey- This is a summary of all data submitted by collaborators up to and including 1922» In a recent article Fromm^ (l) presents experimental evidence showing differences in the susceptibility of vari- eties to loose smut infection^ He finds a greater amount of loose smut in bearded than in beardless varieties in Virginia and gives further data shov/ing the suscepti- bility of Stoner and the resistance of Leap (Leap's Prolific). In his collaborator's report Fromme has made the statement that the resis1:ance in Leap is probably due to ii;hcTont imiiiunity rather than disease es- ⢠CD'-^e ^ Very little information concerning acres or fraction thereof per county, treatment b
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1923
