Chemical Control of Plant Diseases: Problems and Prospects

Waard, M.A. de; Georgopoulos, S. G.; Hollomon, D. W.; Ishii, Hideo; Leroux, Pierre; Ragsdale, Nancy; Schwinn, F. J.

doi:10.1146/annurev.py.31.090193.002155

Cited by 137 publications

(55 citation statements)

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“…C NMR data of 1 ( Table 1) and those of fungichromin (2) 12 showed that they have the same skeleton. The H-28 signal appears as a unique methyl doublet, and the COSY spectrum gave H-27, H-26, H-25.…”

Section: Resultsmentioning

confidence: 93%

“…(2), have the potential to be developed as agricultural fungicides, and specifically as products for the treatment of phytopathogenic fungi.…”

Section: Resultsmentioning

confidence: 99%

“…Though these diseases have been successfully controlled by synthetic chemical fungicides, the intensive use of such fungicides causes other problems like fungicide resistance. These fungicides also have environmentally detrimental side effects 1,2 . Microbial metabolites have sophisticated and widely varying structures, which are often associated with highly selective activity against plant pathogens.…”

Section: Introductionmentioning

confidence: 99%

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Antifungalmycin, an antifungal macrolide from Streptomyces padanus 702

Wang

Wei

Zhang

et al. 2012

Nat. Prod. Bioprospect.

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Section: Resultsmentioning

confidence: 93%

“…(2), have the potential to be developed as agricultural fungicides, and specifically as products for the treatment of phytopathogenic fungi.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Antifungalmycin, an antifungal macrolide from Streptomyces padanus 702

Wang

Wei

Zhang

et al. 2012

Nat. Prod. Bioprospect.

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“…Rost. on barley (de Waard et al 1993). Both these compounds are used to control the cotton seedling disease complex.…”

Section: Components Of Ipm and Their Application To Cottonmentioning

confidence: 99%

Integrated management of insect pests, diseases and weeds of cotton in Africa

Hillocks

1995

Integr Pest Manag Rev

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Integrated pest management systems were developed originally in response to the appearance of insect populations with resistance to common insecticides. Cotton with its heavy dependence on insecticidal sprays was one of the first crops in which the effectiveness of control declined due to resistance in the target pests. Although insecticide resistance is more of a problem in large scale production systems, the IPM approach can also benefit the smallholder by reducing the number of sprays required with consequent cost savings. Where crop growth is adversely affected by diseases, competition from weeds or poor management, the full benefit of insecticide spray programmes cannot be realised. To be fully effective, insect control should therefore be integrated with other crop protection activities. This paper reviews the insect pests, diseases and weed problems of cotton in Africa and discusses the possibilities for extending the principles of IPM to cover all the crop protection activities with practical examples drawn from both small scale and larger scale production systems.

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“…the banning of copper containing fungicides in Europe, the search for natural alternatives has increased in many developed countries (Waard et al 1993;Daayf et al 1995;El-Fadaly et al 1999, pp. 95-108).…”

Section: Introductionmentioning

confidence: 99%

In vitro and in vivo antifungal activity of crude extracts and powdered dry material from Ethiopian wild plants against economically important plant pathogens

Tegegne

Pretorius

2007

BioControl

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In Ethiopia extracts from specific plants are used traditionally as natural fungicides in small scale farming systems where synthetic chemicals are out of reach of the average subsistence farmer while no scientific base exists for this practice. Subsequently, methanolic crude extracts from Dolichos kilimandscharicus and Maerua subcordata roots as well as Phytolacca dodecandra berries were screened in vitro for antifungal activity against Botrytis cinerea Pers.:Fr., Fusarium oxysporum Schlechtend.:Fr., Sclerotium rolfsii Sacc., Rhizoctonia solani Kühn,, Botryosphaeria dothidea (Moug.:Fr.) Ces & De Not. and Pythium ultimum Trow, using an agar diffusion method. Compared to the other plants as well as specific standard fungicides for each pathogen, the root extract of D. kilimandscharicus showed the highest broad-spectrum in vitro antifungal activity by inhibiting the mycelial growth of three of the six test organisms. Additionally, in vivo antifungal activity of dry powdered material from these plants against sorghum covered (Sporisorium sorghi) and loose kernel (Sporisorium cruentum) smuts was screened under field conditions by artificially inoculating separate sets of sorghum seed with smut spores before treating with plant material or two traditionally used fungicides, Thiram 1 and Apron Plus 1 that served as positive controls. Although the incidence of both loose and covered kernel smuts were significantly reduced by material from all plant species, the dry powdered berries of P. dodecandra were most effective. Compared to the untreated control, treatment with the plant material as well as standard fungicides resulted in significant yield increases. It was concluded that a rationale has been established for further investigation into the structured utilization of natural vegetation indigenous to Ethiopia in the agricultural industry.

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Chemical Control of Plant Diseases: Problems and Prospects

Cited by 137 publications

References 0 publications

Antifungalmycin, an antifungal macrolide from Streptomyces padanus 702

Antifungalmycin, an antifungal macrolide from Streptomyces padanus 702

Integrated management of insect pests, diseases and weeds of cotton in Africa

In vitro and in vivo antifungal activity of crude extracts and powdered dry material from Ethiopian wild plants against economically important plant pathogens

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