Copper Fungicides/Bactericides

The paper evaluates the effect of copper fungicide spraying on the rate of photosynthesis and transpiration of hops, the influence of spraying on the elemental copper content in the leaves and cones hop variety Agnus. Photosynthetic rate was measured by LC pro+ (infrared analyzer) in the Hop Research Institute Saaz in the field in some periods of 2008, 2009 and 2010. Dry cones and leaf samples (taken before and after application of copper fungicides) were analyzed in an accredited laboratory for elemental copper.

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Gremmeniella abietina (Lagerb.) Morelet: Distribution in Serbia and Montenegro, significance and control

Glasnik Sumarskog fakulteta ◽

10.2298/gsf0898107k ◽

2008 ◽

pp. 107-116 ◽

Cited By ~ 1

Author(s):

Dragan Karadzic ◽

Slobodan Milanovic

Keyword(s):

At Risk ◽

Scots Pine ◽

Pathogenic Fungi ◽

Infection Process ◽

Serbia And Montenegro ◽

Copper Fungicides ◽

Mountainous Regions ◽

Dead Trees ◽

Conifer Plantations ◽

And Control

Fungus G. abietina is one of the most dangerous pathogenic fungi occurring in conifer plantations and Pinus species are especially at risk. Among pines, the most susceptible species is Austrian pine, and particularly endangered plantations are between 8 and 25 years of age. This fungus was found in Serbia and Montenegro on Austrian pine, Scots pine and spruce, but it was only in mountainous regions (Kopaonik, Vlasina, Goc, Durmitor). G. abietina forms both stages (anamorph and teleomorph) in its development. The imperfect form is far more significant for the infection process, i.e. the pycnidial stage and generally all infections are caused by conidia (pycnospores). Apothecia will be formed on the bark only two years after tree dying. In the severely infected plantations, all dead trees should be felled and removed, and the remaining trees should be treated with copper fungicides.

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Studies upon the copper fungicides. IX. Investigations with the exudate from fungus spores

Annals of Applied Biology ◽

10.1111/j.1744-7348.1946.tb06331.x ◽

1946 ◽

Vol 33 (4) ◽

pp. 401-405 ◽

Cited By ~ 10

Author(s):

R. L. Wain ◽

E. H. Wilkinson

Keyword(s):

Copper Fungicides

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Applications of Mixtures of Copper Fungicides and Chlorothalonil for Management of Peanut Leaf Spot Diseases

Plant Health Progress ◽

10.1094/php-2001-1116-01-rs ◽

2001 ◽

Vol 2 (1) ◽

pp. 1 ◽

Cited By ~ 2

Author(s):

A. K. Culbreath ◽

T. B. Brenneman ◽

R. C. Kemerait

Keyword(s):

Arachis Hypogaea ◽

Leaf Spot ◽

Field Experiments ◽

Cercospora Arachidicola ◽

Copper Oxychloride ◽

Copper Hydroxide ◽

Cercosporidium Personatum ◽

Late Leaf Spot ◽

Copper Fungicides

Management of early leaf spot (Cercospora arachidicola) and late leaf spot (Cercosporidium personatum) of peanut (Arachis hypogaea) in the southeastern U.S. is dependent upon multiple applications of foliar fungicides. Field experiments were conducted from 1997 to 2000 to compare the efficacy of mixtures of copper hydroxide or copper oxychloride and reduced rates of chlorothalonil with that of full rates of chlorothalonil alone or chlorothalonil + propiconazole. In all tests, rates per ha of 0.70 kg of chlorothalonil + 0.70 kg of copper oxychloride or higher provided leaf spot control that was similar (P > 0.05) to that achieved with standard rates of chlorothalonil (0.84 kg/ha) + propiconazole (0.063 kg/ha). Application of chlorothalonil at 0.56 kg/ha + copper oxychloride at 0.56 kg/ha controlled leaf spot as well as (P > 0.05) chlorothalonil alone at 1.26 kg/ha in five of six tests in which that treatment was evaluated. In three of four tests in 1998 and 1999, application of chlorothalonil at 0.63 kg/ha + copper hydroxide at 0.63 kg/ha controlled leaf spot as well as chlorothalonil alone at 1.26 kg/ha. In both tests in 2000, application of chlorothalonil at 0.84 kg/ha + copper hydroxide at 0.63 kg/ha controlled leaf spot as well as chlorothalonil alone at 1.26 kg/ha. There were no consistent yield differences among the chlorothalonil, chlorothalonil + propiconazole, or chlorothalonil + copper treatments. Accepted for publication 8 November 2001. Published 16 November 2001.

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