Fb2 Phytophthora Disease of Cocoa ePub
by Philip Herries Gregory
|Author:||Philip Herries Gregory|
|Publisher:||Prentice Hall Press; 1st ed. edition (December 2, 1974)|
|Fb2 eBook:||1923 kb|
|ePub eBook:||1652 kb|
|Digital formats:||txt lit lrf docx|
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Phytophthora Disease Of Cocoa book. Read by Philip Herries Gregory.
Author of The microbiology of the atmosphere, Outdoor aerobiology, The microbiology of the atmosphere, Airborne microbes, Phytophthora disease of. .
Author of The microbiology of the atmosphere, Outdoor aerobiology, The microbiology of the atmosphere, Airborne microbes, Phytophthora disease of cocoa, Airborne microbes. Created April 1, 2008.
Phytophthora disease of cocoa. by Philip Herries Gregory. ISBN 9780582466586 (978-0-582-46658-6) Softcover, distributed by Longman, Inc, 1974. Founded in 1997, BookFinder. Learn More at LibraryThing. London: Longman (1974), pp. 348, £1. 0.
Black pod disease is caused by many different Phytophthora spp. pathogens all expressing the same symptoms in cocoa trees (Theobroma cacao)
Black pod disease is caused by many different Phytophthora spp. pathogens all expressing the same symptoms in cocoa trees (Theobroma cacao). This pathogen if left untreated can destroy all yields; annually the pathogen can cause a yield loss of up to 1/3 and up to 10% of total trees can be lost completely.
Control of Phytophthora diseases with injectable potassium phosphonate. 1992) Control of Phytophthora diseases with injectable potassium phosphonate.
Philip Gregory will be remembered best as a pioneer of aerobiology, a subject that . He advised Gregory to study the foliar diseases of Narcissus
However, this was only one strand in a varied career. He advised Gregory to study the foliar diseases of Narcissus. All fieldwork had to be done west of Truro, Cornwall, and most was completed in the Isles of Scilly over the years 1935–1939. The project concluded that a new species, Phytophthora megakarya Brasier & Griffin, was more common in Nigeria than P. palmivora was, that it did not form persistent infections in flower cushions, and that it was splash dispersed.
Philip Herries Gregory. Interpreting Plant Disease Dispersal Gradients. Philip Herries Gregory. Cocoa black pod: a reinterpretation
Philip Herries Gregory. Cocoa black pod: a reinterpretation. Philip Herries Gregory, M. J. Griffin, A. C. Maddison, Mitchel R. Ward. Mycological examination of dust from mouldy hay associated with farmer's lung disease. Philip Herries Gregory, Maureen E. Lacey. Journal of general microbiology. SUMMARY: Small samples of hay were shaken in a perforated drum in a wind of 4·2 . sec. the liberated dust cloud was sampled with the cascade impactor for microscopical examination, and with the.
Black pod disease of cocoa in West Africa, caused almost exclusively by P. megakarya, still . Phytophthora Diseases of Cocoa. megakarya, still remains one of the most serious constraints on cocoa. P. palmivora is the dominant species on cocoa in Nigeria and Cameroon (Gregory and Maddison, 1981; Zentmeyer, 1987).