Effect of pH and Viscosity of Gel Carrier and Lipid Metabolism Arresting Adjuvants on Shelf Life of Entomopathogenic Nematodes

Mukhopadhyay, Arkadeb; Singh, Amita; Somvanshi, VS; Manna, S.; Rudra, SG; Kundu, Aditi; Phani, Victor; Singh, PK

doi:10.5958/2249-524x.2019.00030.x

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Clay is generally used in formulations as a filler material (Le Bras and Bourbigot, 1996). Biopolymer has been extensively used in the development of biocontrol formulations due to their nontoxicity, wider availability, and cost-effectiveness (Mukhopadhyay et al, 2019;Meena et al, 2020;Oszust et al, 2021). The presence of xerogel in the formulation matrix may provide a sustained moisture-enriched environment during storage (Mukhopadhyay et al, 2020) and supply moisture to the crop after getting released to the field through formulation application (Akhter et al, 2004;Prakash et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Performance appraisal of Trichoderma viride based novel tablet and powder formulations for management of Fusarium wilt disease in chickpea

et al. 2022

View full text Add to dashboard Cite

In developing a Trichoderma viride-based biocontrol program for Fusarium wilt disease in chickpea, the choice of the quality formulation is imperative. In the present study, two types of formulations i.e. powder for seed treatment (TvP) and tablet for direct application (TvT), employing T. viride as the biocontrol agent, were evaluated for their ability to control chickpea wilt under field conditions at three dosages i.e. recommended (RD), double of recommended (DD) and half of recommended (1/2 RD). A screening study for the antagonistic fungi strains based on volatile and non-volatile bioassays revealed that T. viride ITCC 7764 has the most potential among the five strains tested (ITCC 6889, ITCC 7204, ITCC 7764, ITCC 7847, ITCC 8276), which was then used to develop the TvP and TvT formulations. Gas Chromatography-Mass Spectrometry (GC-MS) analysis of volatile organic compounds (VOCs) of T. viride strain confirmed the highest abundance of compositions comprising octan-3-one (13.92%), 3-octanol (10.57%), and 1-octen-3-ol (9.40%) in the most potential T. viride 7764. Further Physico-chemical characterization by standard Collaborative International Pesticides Analytical Council (CIPAC) methods revealed the optimized TvP formulation to be free flowing at pH 6.50, with a density of 0.732 g cm-3. The TvT formulation showed a pH value of 7.16 and density of 0.0017 g cm-3 for a complete disintegration time of 22.5 min. The biocontrol potential of TvP formulation was found to be superior to that of TvT formulation in terms of both seed germination and wilt incidence in chickpea under field conditions. However, both the developed formulations (TvP and TvT) expressed greater bioefficacy compared to the synthetic fungicide (Carbendazim 50% WP) and the conventional talc-based formulation. Further research should be carried out on the compatibility of the developed products with other agrochemicals of synthetic or natural origin to develop an integrated disease management (IDM) schedule in chickpea.

show abstract