Integrated control of fruit rot and powdery mildew of chilli using the biocontrol agent Pseudomonas fluorescens and a chemical fungicide

Anand, T.; Chandrasekaran, A.; Kuttalam, S.; Senthilraja, G.; Samiyappan, R.

doi:10.1016/j.biocontrol.2009.09.010

Cited by 67 publications

(36 citation statements)

References 38 publications

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“…The potential of including BCAs with mefenoxam can be in form of rotations with mefenoxam to reduce the frequency of fungicide applications for a more environmentally friendly, long lasting, consistent, and effective control of P. capsici. Similar results on BCA have been reported in other studies [50][51][52][53][54].…”

Section: Discussionsupporting

confidence: 91%

Evaluation of Selected Bacterial Endophytes for Biocontrol Potential against Phytophthora Blight of Bell Pepper (Capsicum annuum L.)

A¹,

Mt²

2017

J Plant Pathol Microbiol

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Phytophthora blight, caused by Phytophthora capsici, is the most destructive disease of bell pepper in the United States. The effectiveness of current management strategies is limited by the long-term survival of oospores, wide host range, aggressive fungicide-resistant isolates, and lack of resistant cultivars with acceptable agronomic traits. Biological control is a viable alternative, and the use of endophytic microorganisms as biological control agents (BCA) has attracted widespread attention because they colonize the same ecological niches as plant pathogens. Seven isolates of bacterial endophytes in three genera Serratia (B17B), Enterobacter (E), and Bacillus (IMC8, Y, Ps, Psl and Prt), isolated from papaya, snap bean and flowering dogwood were evaluated for effects on P. capsici mycelial growth in vitro, and on disease severity and plant growth in greenhouse environment. All isolates significantly inhibited the mycelial growth of P. capsici with Ps, Psl and Prt having superior inhibitory effects. Seed treatments with Ps, Psl and Prt followed by plant inoculation with P. capsici reduced disease severity, and significantly increased plant shoot height, fresh weight, and fruit yield (number and weight) with Ps and Prt being slightly superior to Psl. Compatibility tests between isolates showed that only B17B and Y were compatible with each other. Sensitivity tests to different levels of mefenoxam (Ridomil Gold SL) showed that Ps, Psl and Prt were tolerant to the fungicide, while P. capsici was highly sensitive. Thus, Ps, Psl and Prt can be used in rotation with mefenoxam to reduce the frequency of fungicide usage for a more environmentally friendly, long lasting, consistent, and effective control of phytophthora blight. Overall, all isolates tested are potential BCAs against P. capsici, but more greenhouse and field studies are required to confirm in vitro results for all isolates that showed good potential in in vitro studies.

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Section: Discussionsupporting

confidence: 91%

Evaluation of Selected Bacterial Endophytes for Biocontrol Potential against Phytophthora Blight of Bell Pepper (Capsicum annuum L.)

A¹,

Mt²

2017

J Plant Pathol Microbiol

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“…Such treatments provide promising levels of control but require evaluation under field conditions over an extended growing period (Anand et al . ). Nevertheless, an integrated strategy may provide more stable disease control under conditions where biological control agents may not function well, such as at higher temperatures or where there is a history of pesticide groups failing as a result of the emergence of resistant strains.…”

Section: Discussionmentioning

confidence: 97%

Arthrobotrys oligospora -mediated biological control of diseases of tomato (Lycopersicon esculentum Mill.) caused by Meloidogyne incognita and Rhizoctonia solani

Singh

Sahu

et al. 2012

J Appl Microbiol

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Aims: To study the biocontrol potential of nematode-trapping fungus Arthrobotrys oligospora in protecting tomato (Lycopersicon esculentum Mill.) against Meloidogyne incognita and Rhizoctonia solani under greenhouse and field conditions. Methods and Results: Five isolates of the nematode-trapping fungus Arthrobotrys oligospora isolated from different parts of India were tested against Meloidogyne incognita and Rhizoctonia solani in tomato (Lycopersicon esculentum Mill.) plants grown under greenhouse and field conditions. Arthrobotrys oligospora-treated plants showed enhanced growth in terms of shoot and root length and biomass, chlorophyll and total phenolic content and high phenylalanine ammonia lyase activity in comparison with M. incognitaand R. solani-inoculated plants. Biochemical profiling when correlated with disease severity and intensity in A. oligospora-treated and untreated plants indicate that A. oligospora VNS-1 offered significant disease reduction in terms of number of root galls, seedling mortality, lesion length, disease index, better plant growth and fruit yield as compared to M. incognita-and R. solanichallenged plants. Conclusion: The result established that A. oligospora VNS-1 has the potential to provide bioprotection agents against M. incognita and R. solani. Significance and Impact of the Study: Arthrobotrys oligospora can be a better environment friendly option and can be incorporated in the integrated disease management module of crop protection. Application of A. oligospora not only helps in the control of nematodes but also increases plant growth and enhances nutritional value of tomato fruits. Thus, it proves to be an excellent biocontrol as well as plant growth promoting agent.

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“…The integration of fungicides with biocontrol agents offers an opportunity to reduce the amount of fungicide application (Anand et al, 2010). However, there are no reports on the combined efficacy of P. lilacinum with nematicides against root-knot nematodes.…”

Section: Discussionmentioning

confidence: 98%

“…The use of a biocontrol agent and a low dose of fungicide has been documented as an effective method against Fusarium crown and root rot of tomato, late leaf spot of groundnut, Rhizoctonia root rot, take-all disease of spring wheat, post-harvest diseases of fruits, and fruit rot and powdery mildew of chilli (Chand-Goyal & Spotts, /. Liu et al 1996;Duffy, 2000;Kishore et al, 2005;Anand et al, 2010).…”

mentioning

confidence: 97%

Integrated management of root-knot nematodes on tomato in glasshouse production using nematicides and a biocontrol agent, and their effect on soil microbial communities

Liu

Sun

Qiu

et al. 2014

Nematol

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Nematicides are the main method for managing root-knot nematodes but they are not environmentally benign. Biological control is one alternative that has a lower or no environmental impact. This study was conducted to evaluate the efficacy of two nematicides (Fosthiazate and Dazomet), a biocontrol agent (Purpureocillium lilacinum (= Paecilomyces lilacinus) YES-2), their combination on controlling root-knot nematodes on tomato plants and their effects on the rhizosphere microbial community in longterm glasshouse experiments. The gall index and numbers of second-stage juveniles (J2) were significantly reduced by the individual treatments of Fosthiazate, Dazomet or P lilacinum YES-2. Purpureocillium lilacinum YES-2 combined with a half dose of Fosthiazate showed the most efficient control as indicated by gall index and number of J2 compared with the control treatment in glasshouse experiments conducted over a 5-year period (2007)(2008)(2009)(2010)(2011). The bacterial and fungal biodiversity in soil measured using Biolog ECO MicroPlates and denaturing gradient gel electrophoresis (DGGE) fingerprint was higher in the treatments of P. lilacinum YES-2 alone or its combination with chemicals than in the treatments of Dazomet or Fosthiazate (in 2011 only). This study suggested a synergistic effect on the control of root-knot nematode by P. lilacinum YES-2 combined with Fosthiazate, and the contribution of these two treatments to the microbial communities in the soil.

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Integrated control of fruit rot and powdery mildew of chilli using the biocontrol agent Pseudomonas fluorescens and a chemical fungicide

Cited by 67 publications

References 38 publications

Evaluation of Selected Bacterial Endophytes for Biocontrol Potential against Phytophthora Blight of Bell Pepper (Capsicum annuum L.)

Evaluation of Selected Bacterial Endophytes for Biocontrol Potential against Phytophthora Blight of Bell Pepper (Capsicum annuum L.)

Arthrobotrys oligospora -mediated biological control of diseases of tomato (Lycopersicon esculentum Mill.) caused by Meloidogyne incognita and Rhizoctonia solani

Integrated management of root-knot nematodes on tomato in glasshouse production using nematicides and a biocontrol agent, and their effect on soil microbial communities

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