Effect of Soil pH on Susceptibility of Peach to Pseudomonas syringae

Weaver, D. J.; Wehunt, E. J.

doi:10.1094/phyto-65-984

Cited by 25 publications

(17 citation statements)

References 5 publications

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“…Vigouroux & Huguet (1977) found that the incidence of bacterial decline was not reduced by additions of lime to acidic soils. However, Weaver & Wehunt (1975) reported that PTSL was more serious in soils where pH was below 6, and the maintenance of pH in the range 6 -6.5 is recommended for preventing this condition (Feree et al 1978;Ritchie & Clayton 1981;McGlohon 1982). The maintenance of pH above 6 is also considered to be one of the most important practices for controlling P. syringae syringae causing bacterial canker in the southeastern United States (N. E. McGlohon pers.…”

Section: Fertiliser Practices and Soil Phmentioning

confidence: 99%

Orchard management and bacterial diseases of stone fruit

Young

1987

New Zealand Journal of Experimental Agriculture

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The major bacterial pathogens of stone fruit in New Zealand are Xanthomonas campestris pv. pruni (Smith 1903) Dye 1978, causing bacterial spot of stone fruit, Pseudomonas syringae pv. syringae van Hall 1902, causing bacterial blast of apricot and cherry, and P. syringae pv. persicae (Prunier et al. 1970) Young et al. 1978, causing bacterial decline of nectarine and peach. Management practices can have an important influence on the incidence of these diseases in stone fruit. This review examines treatment in the nursery, susceptibility of cultivars, effect of root health on susceptibility, rootstocks and grafting, pruning, irrigation management, frost control, and spray measures. Where appropriate, recommendations to reduce disease incidence are made.

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Section: Fertiliser Practices and Soil Phmentioning

confidence: 99%

Orchard management and bacterial diseases of stone fruit

Young

1987

New Zealand Journal of Experimental Agriculture

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“…A soil temperature of 26°C is more favorable for population increase of M. xenoplax than 13", 18", 21"' or 28°C. Weaver and Wehunt (1975) showed the effect of various soil pH levels on the performance of 'Elberta' peach seedlings grown in pots of soil from a peach orchard with a bacterial canker history, and artificially inoculated with Ps. syringae after they had become dormant.…”

Section: Inoculationmentioning

confidence: 99%

The Short Life and Replant Problems of Deciduous Fruit Trees

Yadava

Doud

1980

Horticultural Reviews

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“…Pseudomonas syringae pv. syringae normally resides as an epiphyte on the surface of trees and causes cankers only when trees have been stressed by various predisposing factors such as coarse soil texture [7], nitrogen deficiency [8][9][10], water and calcium deficiency [11][12][13], low soil pH [14], freezing temperatures [15,16], and high populations of ring nematodes [4][5][6][17][18][19][20]. The most effective measure to control bacterial canker is to suppress the population of ring nematodes by soil fumigation with methyl bromide [21], but the use of methyl bromide as a soil fumigant has been prohibited in the United States because of its deleterious impact on the environment.…”

Section: Introductionmentioning

confidence: 99%

Effect of calcium and nitrogen fertilization on bacterial canker susceptibility in stone fruits

Cao¹,

Duncan²,

Kirkpatrick³

et al. 2013

Fruits

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Original article Fruits, vol. 68 (3) Effect of calcium and nitrogen fertilization on bacterial canker susceptibility in stone fruits. Abstract -Introduction. Bacterial canker, caused by Pseudomonas syringae pv. syringae, is a destructive disease where stone fruit trees are cultivated. The efficacy of nitrogen and calcium fertilization on bacterial canker susceptibility was evaluated in stone fruits. Materials and methods. Field experiments were conducted to study the efficacy of foliar applications of calcium nitrate, and ground fertilization with CAN-17 plus low-biuret urea foliar spray on bacterial susceptibility in 'Riegel' peach, 'French' prune and 'Nonpareil' almond growing in ring nematode-infested and nematicide-fumigated soils. Host susceptibility was evaluated by measuring the length of lesions developed following inoculation with P. syringae pv. syringae. Results and discussion. Foliar applications of Ca(NO 3 ) 2 significantly increased leaf nitrogen and bark calcium concentrations in peach trees growing in both fumigated and nonfumigated areas. Peach trees growing in nonfumigated areas developed significantly longer lesions than trees growing in fumigated areas. However, Ca(NO 3 ) 2 foliar applications had no effect in decreasing peach susceptibility to bacterial infection in both nonfumigated and fumigated areas. After inoculation, diseased prune trees developed significantly longer lesions than healthy trees. Leaf and bark calcium concentrations of diseased prune were significantly increased after Ca(NO 3 ) 2 foliar sprays, but again the treatments did not significantly affect prune susceptibility to bacterial infection. However, nitrogen fertilization with CAN-17 and urea significantly increased the bark nitrogen concentration of almond trees, and these trees had significantly smaller lesions than those not receiving nitrogen fertilization. Foliar application of calcium (Nutri-Cal) did not affect almond susceptibility to bacterial canker. Collectively, these data support the previous hypothesis that increased susceptibility of stone fruits to P. syringae pv. syringae under nematode infestation conditions is mediated by both nitrogen effects and nitrogenindependent effects, and application of ammonium nitrogen may have some beneficial effects in reducing stone fruit susceptibility to bacterial canker where ring nematode infestation prevails. USA / Prunus persica / Prunus avium / Prunus domestica / plant diseases / Pseudomonas syringae / plant nematodes / Mesocriconema xenoplax / cultivation Effet de la fertilisation calcique et azotée sur la sensibilité au chancre bactérien des arbres fruitiers à noyau.Résumé -Introduction. Le chancre bactérien, causé par Pseudomonas syringae pv. syringae, est une maladie destructrice dans les zones où les fruitiers à noyau sont cultivés. L'efficacité de la fertilisation calcique et azotée sur la sensibilité au chancre bactérien a été évaluée pour ces arbres. Matériel et méthodes. Des expériences de terrain ont été réalisées pour étudier l'efficacité d'applications...

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Effect of Soil pH on Susceptibility of Peach to Pseudomonas syringae

Cited by 25 publications

References 5 publications

Orchard management and bacterial diseases of stone fruit

Orchard management and bacterial diseases of stone fruit

The Short Life and Replant Problems of Deciduous Fruit Trees

Effect of calcium and nitrogen fertilization on bacterial canker susceptibility in stone fruits

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