Study on compatibility of Trichoderma viride with different fungicides

Abstract

Aggressive colonization of T. viride can occurs in diverse environmental condition as a biological control and prevents many soil borne diseases. In this context, laboratory experiment was conducted during 2018-19 at Department of Plant Pathology, Bihar Agricultural University, Sabour, Bhagalpur, Bihar to test the sensitivity of T. viride isolated with selected fungicides to devise the best management practice. In course of investigation, nine fungicides of systemic, non-systemic and their combination were evaluated at lower concentrations compared to recommended dose on sensitivity and sporulation of T. viride with food poisoned techniques. Growth and sporulation of T. viride was totally inhibited by carbendazim, hexoconazole, carbendazim+ mancozeb and iprodione + carbendazim at all the concentrations. Sporulation affected by all the fungicides, but in copper-oxychloride, inhibition of sporulation had minimum, i.e. 19.7, 37.1 and 53.9 at 200, 500 and 1000 μg/ml, respectively. Since, the minimum inhibitory effect on growth and spore production was recorded in copper oxychloride. Thus, the present finding suggest that compatible fungicides copper oxychloride can be used with T. viride in an integrated disease management practices for managing soil borne pathogens.

In vitro evaluation of drying supports and adhesive polymers as adjuvants for biocontrol of Diplodia seriata by Trichoderma harzianum and Clonostachys rosea

“…Talc, although showing no effects on mycelium growth of C. rosea or T. harzianum, decreased the conidium germination of T. harzianum, probably because this substance can form barriers surrounding conidia, reducing the water and nutrient, and germination of the conidia (IARC, 2010). However, the 80% conidium germination obtained in the presence of talc indicates that it could be used in formulations, since it favored survival and storage of CFUs for up to 150 d at temperatures 0 to 40°C (Bhat et al, 2009;Kumar et al, 2013). Similarly, Rai and Tewari (2016) used talc for moisturizing and liquid formulations containing T. harzianum.…”

Trichoderma un aliado de la agricultura

“…El grado de acidez o salinidad del suelo es un parámetro importante para el desarrollo de los microorganismos y algunas cepas de hongos tienen requerimientos específicos. Sin embargo, Trichoderma puede adaptarse a diferentes pH ambientales (Kumar, 2013). Existen estudios que demuestran que varias especies de Trichoderma presentan un crecimiento óptimo y una gran tasa de esporulación entre valores de 2-7 de pH (Kumar, 2013).…”

“…Sin embargo, Trichoderma puede adaptarse a diferentes pH ambientales (Kumar, 2013). Existen estudios que demuestran que varias especies de Trichoderma presentan un crecimiento óptimo y una gran tasa de esporulación entre valores de 2-7 de pH (Kumar, 2013).…”

Evaluation of Fungicides Against Rhizoctonia bataticola (Taub) Butler Causing Dry Root Rot of Groundnut and Their Compatability with Trichoderma asperellum

“…Kumar et al [11] reported that Carbendazim 12% + Mancozeb 63% has completely inhibited mycelial growth of T.asperellumand had inhibited to cent per cent at 100,200,400 and 800 ppm.…”