Potential for integrated biological and chemical control of damping-off disease caused by Pythium ultimum in tomato

Salman, Mazen; Abuamsha, Ruba

doi:10.1007/s10526-012-9444-4

Cited by 27 publications

(12 citation statements)

References 17 publications

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“…However, when first signs of infections occur despite preventative measures, curative measures must be applied immediately, such as removing all infected plant material and media (roguing) and destroying/discarding it outside of the nursery facilities to reduce inoculum levels. In addition, chemical control with fungizides based on mancozeb and metalaxyl have shown good results on oomycete infected plants (Al‐Sa'di et al, 2008; Luong et al, 2010; Salman & Abuamsha, 2012). However, application of fungicides must be conducted in a proper manner to avoid development of fungicide resistance by the pathogens (Sanders et al, 1990; Titone et al, 2009; White et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Damping‐off, root rot and wilting caused by Pythium myriotylum on Acacia crassicarpa in Sumatra, Indonesia

Oliveira¹,

Jung

Milenković

et al. 2021

Forest Pathology

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Acacia crassicarpa Benth. (Fabaceae) is a legume tree native to northern Queesland, Australia, southwestern Papua New Guinea and southeastern Irian Jaya, Indonesia (Harwood, 1992). It is a multipurpose species with various end-product uses, and the combination of rapid growth, ability to suppress weeds, and abundant Rhizobium nodulation have contributed to this tree being used successfully for soil improvement and land rehabilitation on a wide range of degraded sites (Doran et al., 1997). Additionally, A. crassicarpa brings characteristics of high pulp yield and high fibre quality, which makes this tree highly suited to use in large commercial plantations for pulpwood production in Southeast Asian countries (Griffin et al., 2011). In Indonesia, A. crassicarpa was first planted in the early 1980 s where it showed good performance on peatlands in Sumatra (Midgley & Turnbull, 2003). It has been estimated that over two-million hectares had been planted in this region by 2014 (Harwood & Nambiar, 2014). The intensification of forestry practices is associated, in most cases, with increasing stand homogeneity and consequent reduction of genetic

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Section: Discussionmentioning

confidence: 99%

Damping‐off, root rot and wilting caused by Pythium myriotylum on Acacia crassicarpa in Sumatra, Indonesia

Oliveira¹,

Jung

Milenković

et al. 2021

Forest Pathology

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“…The present results are similar with findings of Sawant and Mukhopadhyay (1990) who reported seed treatment with 1000 ppm metalaxyl gave complete protection against damping off for entire period. Salman and Abuamsha (2012) reported that the metalaxyl-M treatment applied alone or in combination with P. fluorescencs, significantly protected tomato seedling against damping off. Ghutukade et al, (2013) reported that metalaxyl showed maximum reduction in damping off (4.44 per cent) in nursery.…”

Section: Disease Incidence Of Post Emergence Damping Offmentioning

confidence: 98%

Efficacy of Fungicides and Bioagents against Damping off in Chilli caused by Pythium aphanidermatum

Tekale¹,

Guldekar²,

Kendre³

et al. 2019

Int.J.Curr.Microbiol.App.Sci

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Pythium damping-off of Chilli (Capsicum annuum L.) is very common problem in fields and greenhouses, whereas the organism kills newly emerged seedlings. In present investigation repeated isolations from rotten seeds as well as toppled seedlings of Chilli cv. Pusa Jwala have yielded the cultures of P. aphanidermatum. The damping off mainly being soil borne, the primary infections are needed to be controlled with suitable fungicides. The different fungicides and bioagents were evaluated as seed dressers and soil drenching. The result revealed that there was significant difference in per cent disease incidence at 15, 30 and 45 day after sowing. Seed dressing of metalaxyl reduced the damping off disease significantly as compared to all other treatments and at par with thiram. Among bioagents, Trichoderma harzianum was proved effective in controlling the disease. In per cent mortality it was found that metalaxyl reduced the plant mortality significantly over control followed by thiram. Among the bioagents, Trichoderma harzianum was superior over all other treatments followed by T. viride.

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“…The bacterium produces antibiotics such as 2,4-diacetylphloroglucinol (DAPG) and other phenazine derivative [17]. In addition, it was possible to apply the bacterium in combination with chemical fungicides to control P. ultimum damping-off in tomato [19]. However little information is available about colonization of plant roots by this bacterium.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Fluorescent Pseudomonads with Pythium ultimum and Rhizoctonia solani in Cucumber Roots

Salman¹,

Abuamsha²,

Barghouthi³

2013

AJEA

Self Cite

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The effects of the fluorescent pseudomonad isolate CW2 on hyphae of Pythium ultimum (Trow) and Rhizoctonia solani (Kühn) and root colonization were studied in gnotobiotic systems under scanning electron microscopy (SEM). Results of SEM revealed that the frequency of bacterial colonization was higher in cucumber roots infested with the fungi than in healthy roots. Isolate CW2 caused irregular and abnormal fungal growth. Swellings and shrinkages of P. ultimum and R. Solani hyphae were obvious when cucumber roots were drenched with CW2. SEM studies were also conducted to evaluate the effect of CW2 on hyphae of both fungi on PDA medium. The hyphae of P. ultimum and R. solani showed distinct morphological alterations and degradation compared to untreated healthy control hyphae of Pythium or Rhizoctonia which were slender and uniform in shape. The results provide direct evidence of bacterial attachment and colonization to fungal hyphae of both tested spp. and show that fungal growth to be significantly reduced in the presence of isolate CW2.

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Potential for integrated biological and chemical control of damping-off disease caused by Pythium ultimum in tomato

Cited by 27 publications

References 17 publications

Damping‐off, root rot and wilting caused by Pythium myriotylum on Acacia crassicarpa in Sumatra, Indonesia

Damping‐off, root rot and wilting caused by Pythium myriotylum on Acacia crassicarpa in Sumatra, Indonesia

Efficacy of Fungicides and Bioagents against Damping off in Chilli caused by Pythium aphanidermatum

Interaction of Fluorescent Pseudomonads with Pythium ultimum and Rhizoctonia solani in Cucumber Roots

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