Vol. 10, Issue 4 (2021)

Author(s):
Devi shanthini V, Theradimani M, Thiruvudainambi S, Renuka R, Beaulah A, Brindhadevi S and Vellaikumar S

Abstract:
Chilli is considered an important tropical and subtropical crop. Fruit rot disease in chilli is widely distributed worldwide causing considerable losses in yield and quality. Five different fungicides viz., Azoxystrobin (Amistar 23%SC), Azoxystrobin+ Difenoconazole (Amistar Top 30%W/W) Pyraclostrobin + Metiram (Carbrio Top 60%WG), Tebuconazole + Trifloxystrobin (Nativo 75WG) and Fenamidone + Mancozeb (Sectin 60 WG) were assayed for their compatability with Bacillus subtilis. Testing the compatibility of Strobilurin fungicides with biocontrol agents for phytotoxic symptoms in chilli plants. The compatible fungicides were assayed for their efficacy against Colletotrichum truncatum by Poison food technique at concentration of 250ppm, 500ppm, 750ppm, 1000ppm and 2000ppm. Amistar Top with per cent inhibition of 94.43% found to be best in inhibiting mycelia growth of pathogen and found to be superior over other chemical fungicides. There are distinct fungicides available in the market for control of fruit rot disease. However some fungicides are highly effective against the pathogen. Therefore this investigation will helpful to the farmer for selection of suitable fungicides used for management of fruit rot disease, an integrated way to save their crop from the disease and obtain better yield.