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Rose powdery mildew studied for epidemics


, : Rose powdery mildew studied for epidemics. Science in Agriculture 20(2): 10

Favourable conditions for epidemics of Sphaerotheca pannosa are considered to be: 60 deg F and 90-99% RH at night (conidial formation, germination and infection); 80 deg and 40-70% RH in the day (conidial release).

US$29.90


Other references

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Huang, M.H.; Wheeler, D.E.; Fjerdingstad, E.J., 2013: Mating system evolution and worker caste diversity in Pheidole ants. The efficiency of social groups is generally optimized by a division of labour, achieved through behavioural or morphological diversity of members. In social insects, colonies may increase the morphological diversity of workers by recruiting stand...

Miller M.S.; Buss E.G.; Clagett C.O., 1981: Effect of carbohydrate modification on transport of chicken gallus domesticus egg white riboflavine binding protein. The role of the oligosaccharide moiety of chicken egg white riboflavine-binding protein (WRBP) was studied by correlating structural modification with physiological effects. Periodate oxidation destroyed much of the carbohydrate moiety but resulte...

Parsons, G.N.; Kinsman, S.B.; Bosk, C.L.; Sankar, P.; Ubel, P.A., 2001: Between two worlds medical student perceptions of humor and slang in the hospital setting. Residents frequently use humor and slang at the expense of patients on the clinical wards. We studied how medical students react to and interpret the "appropriateness" of derogatory and cynical humor and slang in a clinical setting. Semi...

Poullot, D.; Warlop, F., 2002: Strategies for the control of adult olive fruit fly: laboratory trials of organic insecticides. This paper presents the results of preliminary laboratory trials evaluating the efficacy against adult olive fruit fly (Bactrocera oleae) of active ingredients of insecticides in various dosages at 24 and 48 h intervals after application.

Kurten B., 1979: The shadow of the brow. Current Anthropology 20(1): 229-230

Delouya, G.; Carrier, J-François.; Béliveau-Nadeau, D.; Donath, D.; Taussky, D., 2010: Migration of intraprostatic fiducial markers and its influence on the matching quality in external beam radiation therapy for prostate cancer. To assess the influence of fiducial marker (FM) migration on the matching quality in external beam radiation therapy (EBRT) for prostate cancer. The position of FMs were identified using on-board kV imaging (OBI) and their 3-D position established...

Mcgarrity G.J.; Gamon L.; Steiner T.; Tully J.; Kotani H., 1985: Uridine phosphorylase activity among the class mollicutes. Uridine phosphorylase activity has been used to detect mycoplasmas in cell cultures by measuring formation of 14C-uracil from 14C-uridine. In this report we show that all species of Mycoplasma, Acholeplasma, and Ureaplasma tested exhibited uridine...

Deshpande, A.A.; Swamy, G.S., 1989: Allosteric stimulation of calcium and magnesium atpase activity by iaa and inhibition by abscisic acid in sorghum sorghum bicolor l. roots. (Ca2+ + Mg2+)-ATPase was partially purified from the roots of sorghum (Sorghum bicolor L.), var. CSH-1. The Lineweaver-Burk plot of the kinetic data indicated that the enzyme follows Michaelis-Menten kinetics, with an apparent Km value of 2.2 mM....

Shalaboda, V.L., 2004: Pollen and spores in a structure of minsk atmospheric aerosols (seasonal variations, morphology, identification). The present paper is the result of complex systematic study of structure and morphology of pollen and spores in Minsk atmospheric aerosols. Two methodological approaches were used: 1) direct selection of biological particles from the air onto the...