Trichoderma harzianum and botanicals

The bioefficacy of antagonist and botanical extract were tested in vitro against Fusarium oxysporum f. sp. ricini causing wilt of castor. Trichoderma harzianum (72.22%), T. viride (70.37%) and Pseudomonas fluorescens appeared potent antagonist against Fusarium oxysporum f. sp. ricini followed by T. faciculatum, T. longibrachyatum and Bacillus subtilis. Among the botanical, the extract of turmeric rhizome was effective in inhibiting mycelial growth 42.22 Per cent followed by 36.67 per cent inhibition by leaves extract of marigold.

6p angicungduoc8 07-11-2020 11 1   Download

For this study, disease infected leaf samples were collected from pulse pathology block situated at Normon E. Borlaug Crop Research Centre, Pantnagar based on cultural, morphological and disease potential studies and then evaluated the pathogen against five botanicals viz. Calotropis, Ocimum, Aloevera, Neem and Bael at 5, 15, 25 and 35 per cent concentration through poison food technique and two bioagents viz.

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To manage the disease an investigation at the Department of Plant Pathology, SHIATS-DU, Allahabad was carried out to evaluate the effect of bio-agents viz. Trichoderma viride @ 2%, Pseudomonas fluorescens @ 2%, T. harzianum @ 2%, botanical viz. neem leaf extract @ 5%, neem oil @ 5% and fungicide viz. carbendazim @ 0.2% against R. solani under invitro condition by dual culture and poisoned food technique. All the bioagents and botanical were evaluated singly. All the treatments significantly inhibited the mycelial growth of R. solani as compared to untreated check.

5p chauchaungayxua6 26-06-2020 11 2   Download

Among the tested five non-systemic, three combi- products, three systemic fungicides against Peziotrichum corticolum under laboratory condition, Bordeaux mixture, Copper oxychloride, Mancozeb, Carbendazim + Mancozeb, Hexaconazole + Zineb recorded maximum (100%) mean percent inhibition of P. corticolum, followed by Cuprous hydroxide (96.39%), Propiconazole (95.56%), Captan + Hexaconazole (86.39%), Difenconazole (80.74%), Hexaconazole (74.07%), Chlorothalonil (73.92%). Among the five plant extracts (botanicals), maximum mean percent inhibition of mycelial growth (22.

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Three botanicals viz. Neem (Azadirachta indica), Garlic (Allium sativum), Onion (Allium cepa) and a chemicals carbendazim(treated) were used in vivo (in field) at 10 per cent and 0.1% concentration. To check the disease intensity of web blight in mungbean. The minimum disease intensity and maximum disease control were recorded in garlic(value) followed by neem, onion, Trichoderma viride, T. harzianum as compared to treated and untreated check. The yield (value) and 100-seed weight were also recorded maximum in garlic (value) followed by neem, onion, Trichoderma viride, T.

5p nguaconbaynhay6 23-06-2020 9 0   Download

Contamination of Oyster mushroom (var Pleurotus florida) bed with harmful fungi Trichoderma harzianum and Aspergillus flavus caused complete failure of mushroom crop. Management of T.harzianum and A. flavus was investigated by using four botanicals plant extracts viz.,Neem, Tulshi, Boas and Methi seed @ 5%, 10% , 20% concentration and GRAS chemicals viz., Boric acid, Calcium chloride, Sodium bi-carbonate and Sodium chloride @ 1%, 3%, 5% concentration respectively along with control under in vitro condition.

7p quenchua4 16-04-2020 11 0   Download

The study was conducted in the department of Plant Pathology SHUATS Allahabad (2014) to investigate mycoparasitism inhibitory effects of Trichoderma spp, Pseudomonas sp, neem leaves extract and carbendazim on the growth of the Fusarium oxysporum f.sp. lycopersici which causes wilt of tomato in-vitro, Trichoderma harzianum, Trichoderma viride, Pseudomonas fluoresens were used @ 2% (dual culture technique) and carbendazim @0.1gm and Neem leaves extract in the ratio of 1:1(poison technique). Among all Trichoderma viride was the best inhibitor of test pathogen (87.

6p chauchaungayxua3 07-02-2020 12 0   Download

The present study was carried out to find the integrated management of early blight of tomato (Lycopersicon esculentum Mill.) caused by Alternaria solani. Tomato (Lycopersicon esculentum Mill.) is an important vegetable crop which is grown all over the world. Early blight of tomato, caused by Alternaria solani is one of the most important diseases in tomato. Two fungicides i.e. Mancozeb 75 WP and Hexaconazole 5 EC at different concentrations (0.1%, 0.2% and 0.3%), two bio-agents viz., Trichoderma harzianum and T. koningii and two botanicals i.e.

9p nguathienthan2 26-12-2019 14 0   Download

Stem bleeding disease caused by Thielaviopsis paradoxa is one of the major diseases of coconut in almost all the coconut growing regions of Karnataaka. Bioefficacy of five botanicals viz. Allium sativa, Nerium olender, Tinospora cordifolia, Osimum sanctum and Aegle marmelos, Seven isolates namely Trichoderma viridae (GKVK), Trichoderma harzianum (GKVK), Trichoderma asperillum (GKVK), Trichoderma harzianum (HRS, NBAII, KRN and MYS) and ten systemic and three contact fungicides were evaluated under in vitro conditions against Thielviopsis paradoxa.

6p cothumenhmong1 10-12-2019 18 0   Download

Corynespora leaf fall (CLF) disease of rubber incited by Corynespora cassiicola is listed as a fourth most serious leaf disease of rubber in South East Asia. As the rubber is a tree crop it grows up to 60 – 70 feet height, management of this disease is not easy and it involves more price tag. The use of effective and economical management strategies is plays a vital role in efficient disease management in rubber plantations. To develop a tool to integrated disease management approach, tested different bio-agents, plant extracts and fungicides against Corynespora cassiicola.

8p cothumenhmong1 08-12-2019 11 0   Download

Alternaria leaf blight of sunflower caused by Alternaria helianthi is an important disease of sunflower. The study conducted on in vitro evaluation of new molecules of fungicides and plant extracts against Alternaria helianthi, causal agent of Alternaria blight of sunflower. In vitro evaluation of fungicides revealed that, among four systemic fungicides hexaconazole and propiconazole were highly effective in inhibiting the mycelial growth with 100% inhibition among non systemic fungicides the maximum inhibition of mycelial growth was found in captan (86.

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A study was conducted in vitro to control Colletotrichum dematium causing anthracnose disease of groundnut with Trichoderma harzianum and botanicals. Five botanicals viz., Datura leaf extract, Tulsi leaf extract, Garlic bulb extract, Neem oil and Eucalyptus oil at the rate of 5% were evaluated for their efficacy against the radial colony growth of C. dematium. The complete inhibition was obtained in Eucalyptus oil (100%) followed by T. harzianum (71.01%), datura leaf extract (64.78%), tulsi leaf extract (63.63%), neem oil (49.14%) and garlic bulb extract (43.35%).

7p nguaconbaynhay1 04-12-2019 14 0   Download