Biological control of onion leaf blight disease by bulb and foliar application of powder formulation of antagonist mixture

Karthikeyan, M.; Radhika, K.; Bhaskaran, R.; Mathiyazhagan, S.; Sandosskumar, R.; Velazhahan, R.; Alice, D.

doi:10.1080/03235400600813474

Cited by 17 publications

(12 citation statements)

References 40 publications

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“…The results revealed that the activity of PO was significantly higher in tuberose plants treated with consortial formulation of Tv4 @ 2.5 kg ha -1 + Pf3 @ 2.5 kg ha -1 + Bs1 @ 2.5 kg ha -1 + Mahua cake @ 250 kg ha -1 (0.849 change in absorbance min -1 g -1 FW) at four days after challenge inoculation with S. rolfsii (Table 1). Similar result was reported by Karthikeyan et al, (2008).…”

Section: Enzyme Activitiessupporting

confidence: 81%

Induction of Enzyme Activities in Tuberose Plants Treated with Antagonists and Organic Fungicide under Artificial Inoculation of Sclerotium rolfsii Sacc.

Ragavi¹,

Mini²,

Yesuraja³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Section: Enzyme Activitiessupporting

confidence: 81%

Induction of Enzyme Activities in Tuberose Plants Treated with Antagonists and Organic Fungicide under Artificial Inoculation of Sclerotium rolfsii Sacc.

Ragavi¹,

Mini²,

Yesuraja³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…In our results with chemical fungicides Mancozeb and Copper oxychloride against blight Ansari et al (1990) of A. brassicae, Amaresh and Nargund (2002) of Mancozeb, Chlorothalonil, Copper oxychloride, Iprodione and Carbendazim on sunflower percent disease intensity of leaf blight. Rathi and Singh (2009) bio agents and fungicides as seed treatment with T. harzianum seed followed by foliar spray, Karthikeyan et al (2008) against onion blight disease (A. palandui) seed treatment+foliar spray Mancozeb was most effective followed by H. rufa.…”

Section: Effect Of Foliar Spray + Seed Treatment With Fungicides Biomentioning

confidence: 99%

Evaluation of different fungicides and antagonists In vitro and In vivo condition against Alternaria blight of pigeonpea

Balai

Singh

Sinha

et al. 2018

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Efficacy of bio agents and systemic and non-systemic fungicides @ 50, 100, 200, 250 and 500 ppm were evaluated In vitro against Alternaria tenuissima causing Alternaria blight of pigeonpea. The relative efficacy of bio agents were studied in dual culture plate method showed that Hypocrea rufa was found most effective antagonist against test pathogen followed by T. harzianum. Efficacy of six fungicides was tested in poisoned food technique. Among the six fungicides tested, mancozeb was found most effective against test pathogen followed by Chlorothalonil and Iprodione. Propineb was least effective against mycelial growth of test pathogen. Raise in concentration of fungicides was more effective in inhibiting the mycelial growth of the pathogen. Field condition studies were found out to be the effect of seed treatment, foliar spray, seed treatment+ foliar spray with six fungicides and two bio agents and their combination used as against pathogen. Artificial inoculation of mass culture of A. tenuissima was done in the inoculated seed treatment and after foliar spray on the plants sixty DAS. Amongst them twenty five treatments, combination of Mancozeb with H. rufa was found most effective in reducing the disease intensity and disease control followed by Mancozeb with T. harzianum and Mancozeb alone, respectively. While, T. harzianum alone was least effective and maximum disease intensity recorded as a compared to control followed by T. harzianum with double dose and T. harzianum and H. rufa combination treatment, respectively. In case of both seed treatment and foliar spray of Mancozeb with H. rufa was found most effective in reducing the disease intensity and disease control followed by combination of Mancozeb with T. harzianum and Mancozeb alone, respectively. Whereas, least effective and maximum disease intensity and disease control were observed T. harzianum alone as compared to control.

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“…Use of several antagonists with different mode of action may improve biocontrol efficacy under wide range of environmental conditions; however; the success of biological control of plant diseases depends up on the availability of effective formulations of biocontrol agents, survival during storage as well as rapid multiplication and colonization after inoculation. Karthikeyan et al (2008) reported that the talc-based formulation of mix cultures containing B. subtilis, P. fluorescens, Gliocladium virens and Trichoderma spp. could significantly reduced the leaf blight incidence and increased growth of onion in both glass house and field trials.…”

Section: Discussionmentioning

confidence: 99%

Development of microbial consortia for the management of leaf blight disease of coconut

Johnson

Ramjegathesh²,

Sheela³

et al. 2017

Acta Phytopathologica et Entomologica Hungarica

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The leaf blight disease caused by Lasiodiplodia theobromae is an important foliar disease in coconut that results in a yield reduction of 10-24 per cent in Tamil Nadu, India. In the present study, five Trichoderma viride isolates, Pseudomonas fluorescens and Bacillus subtilis strains were isolated from the coconut rhizosphere and tested against L. theobromae. P. fluorescens Pf1, B. subtilis (Km1) and T. viride (TNAU) isolates were found highly effective against the leaf blight pathogen under in vitro conditions and hence, all the three antagonists were combined together to develop microbial consortia and tested against leaf blight disease under field conditions. Soil application of microbial consortia formulated using talc as a carrier material at 150 g (50 g each) and 300 g (100 g each) doses at different intervals (quarterly, half-yearly and annually) was evaluated for three years from 2011 to 2013. Among the treatments, the fungicide carbendazim was found to be the most effective against coconut leaf blight. Among the treatments with bioagents, soil application of microbial consortia @ 300 g+5 kg of farm yard manure at quarterly interval/palm/year was the best treatment which was followed by the treatment with TNAU Bacillus subtilis (Bs1) mixture in two locations. Confirmatory results were obtained in similar experiments carried out at two different locations during 2013-2014, too.

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Biological control of onion leaf blight disease by bulb and foliar application of powder formulation of antagonist mixture

Cited by 17 publications

References 40 publications

Induction of Enzyme Activities in Tuberose Plants Treated with Antagonists and Organic Fungicide under Artificial Inoculation of Sclerotium rolfsii Sacc.

Induction of Enzyme Activities in Tuberose Plants Treated with Antagonists and Organic Fungicide under Artificial Inoculation of Sclerotium rolfsii Sacc.

Evaluation of different fungicides and antagonists In vitro and In vivo condition against Alternaria blight of pigeonpea

Development of microbial consortia for the management of leaf blight disease of coconut

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