Orchard Spraying Versus Dusting

Giddings, N. J.

doi:10.33915/agnic.167

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first experiments by Crandall 23 ' 24 with Bordeaux dust demonstrated that the dust was inefficient in controlling the dominant apple fungi among which P. solitaria was included ; a conclusion which was likewise reached by Fromme 8 et al 34 from two years' experiments with Bordeaux dusts in Virginia, contrary to the earlier report of Fromme and Ralston 33 that control with Bordeaux dust was as striking as it was unexpected. In 1918 Brock 11 reported the failure of sulfur dusts to control apple blotch in Illinois, and Giddings, 38 experimenting with various types of dusts, stated that dusts could not be recommended in West Virginia for the control of apple blotch or any of the dominant apple fungi.…”

Section: Historical : Methods That Have Been Advocatedmentioning

confidence: 99%

Phyllosticta leaf spot, fruit blotch, and canker of the apple : its etiology and control

Guba¹

1925

View full text Add to dashboard Cite

The increasing prevalence and seriousness of apple blotch in Illinois and thruout the United States, and the inadequacy of present control measures emphasize the need of detailed study of the life history and habits of the causal organism, Phyllosticta solitaria E. & E. Since the first published account of the disease on the commercial apple in 1902, valuable observations and isolated facts have been presented by many investigators. Existing publications on the disease, however, show a lack of knowledge of many important phases of nje organism necessary for its successful control. THE DISEASE NAMES APPLIED Before anything definite was known about apple blotch, fruit growers regarded it as an unusual stage of apple scab or apple bitter rot. Up to 1907, the disease was known variously as "apple blotch," ' ' fruit blotch, " ' ' dry rot, " ' < black scab, "" late scab, " " cancer, " ' ' tar blotch," "Phyllosticta," ' ' Phyllostictose, " "star fungus," "Phyllosticta spot," or ' ' Phyllosticta on the apple." As more was known about the disease it came generally to be referred to as apple blotch, and this is the name that will be used in this bulletin. HISTORICAL **' $> Specimens of fhe disease were first collected in October, 1893, by L. M. Underwood 92 on the leaves of the American crab apple (Pyrus coronaria L.) in Montgomery county, Indiana. They were submitted for examination to J. B. Ellis, who determined the causal organism to be a Phyllosticta, to which he gave the name Phyllosticta solitaria; in 1895, he furnished a meagre description of it. A few months previous to the publication of the description of Phyllosticta solitaria, by Ellis and Everhart, 30 M. B. Waite, pathologist of the Bureau of Plant Industry, U. S. Department of Agriculture, photographed blotched a The results presented in this bulletin form part of a thesis submitted by the author to the Graduate School of the University of Illinois in partial fulfilment of the requirements for the degree of doctor of philosophy in botany, May, 1923.

show abstract

Section: Historical : Methods That Have Been Advocatedmentioning

confidence: 99%

Phyllosticta leaf spot, fruit blotch, and canker of the apple : its etiology and control

Guba¹

1925

View full text Add to dashboard Cite

show abstract

Orchard Spraying Versus Dusting

Cited by 1 publication

References 0 publications

Phyllosticta leaf spot, fruit blotch, and canker of the apple : its etiology and control

Phyllosticta leaf spot, fruit blotch, and canker of the apple : its etiology and control

Contact Info

Product

Resources

About