In vitro efficacy of different Fungicides against Fusarium moniliforme causing Bakanae Disease of Basmati Rice

Author: Vikram Singh*, Ashwani Kumar, Promil Kapoor and Mahaveer Singh Bochalya

Download PDF

Abstract

Bakanae which is caused by the fungus Fusarium moniliforme Sheldon (teleomorph: Gibberella fujikuroi Sawada), poses a serious danger to basmati output in all nations that grow the rice varieties including India. It is emerging as major problem in basmati rice producing areas of India. This disease is mainly seed borne but this may be soil borne also. Chemical control provides great opportunity for controlling rice diseases and over last two decades a lot of focus has been shifted towards developing new molecules that can be used for controlling rice diseases. Fungicides are an important tool to control bakanae disease. In this investigation seven fungicides were tested in vitro against F. moniliforme using the poison food technique to determine the inhibitory effect of various chemicals. Each of the fungicide concentrations was to be used: 50 ppm, 100 ppm, 250 ppm, 500 ppm, and 1000 ppm. The four fungicides carbendazim 50 WP (Bavistin), thiophanate methyl 70% WP (Control), trifloxystrobin 25% + tebuconazole 50% WG (Nativo), and carbendazim 12% + manocozeb 63% WP (Crossman) were reported to be the most effective at 50 ppm, with hundreds percent growth inhibition being recorded. At a concentration of 100 ppm, two fungicides tebuconazole 250EC (Tebuzol) and propiconazole 25% EC (Tilt) were very effective. Azoxystrobin 25SC (Amistar) fungicide was shown to be least effective at concentrations of 50 ppm, 100 ppm, 250 ppm, and 500 ppm, inhibiting growth by 46%, 64%, 75% and 88% respectively. At 1000 ppm, it completely prevents the pathogen from growing. According to the results of the current investigation, systemic fungicides effectively control pathogen in vitro conditions. Therefore, these fungicides ought to be used to manage this disease in the field as well.

Keywords

Rice, Bakanae, Fusarium moniliforme, Fungicides, Efficacy

Conclusion

The four fungicides with the highest efficacy at 50 ppm were carbendazim (Bavistin), thiophanate methyl (Control), trifloxystrobin + tebuconazole (Nativo), and carbendazim + manocozeb (Crossman). At 100 ppm, two fungicides, tebuconazole (Tebuzol) and propiconazole (Tilt), completely prevent the pathogen from growing. Azoxystroin had the least effects, but it was also the efficient at 1000 ppm. According to the results of the current investigation, systemic fungicides effectively control pathogen. Fungicides can therefore be used to treat this disease.

References

-

How to cite this article

Vikram Singh, Ashwani Kumar, Promil Kapoor and Mahaveer Singh Bochalya (2022). In vitro efficacy of different Fungicides against Fusarium moniliforme causing Bakanae Disease of Basmati Rice. Biological Forum – An International Journal, 14(4): 513-516.