Author(s):

AT Daunde, KT Apet, AP Suryawanshi and VS Khandare

Abstract: Chilli (Capsicum annuum L.) belongs to the family Solanaceae is mainly cultivated for green fruits as table purpose and dry chilli as spice. Diseases of chilli act as the chief limiting factor to its economic production. Recently, the collar rot caused by Sclerotium rolfsii is becoming sever disease of chilli in India. Crop losses up to 16-80 per cent due to collar rot disease have been reported by many researchers in this crop. Hence, to get a preliminary idea regarding the incidence level and pattern of prevalence of the disease in the agro-climatic zones of Marathwada region of Maharashtra, a roving survey was conducted in eight districts at different locations of the aforesaid agro climatic zone during the crop growing season of Kharif 2016-17 and 2017-18. The pooled analysis of two years data revealed that disease incidence was ranged from 14.01 to 18.75 per cent in these zones and the Jalna district had maximum level of disease incidence (24.71%), followed by the districts viz., Aurangabad (21.50 %), Nanded (18.15 %), Hingoli (16.43 %), Parbhani (15.24 %) and Latur (15.22 %). whereas, it was minimum in the districts of Beed (14.91 %). Maximum mean collar rot incidence was recorded on variety Arch-930 (23.47 %) while minimum incidence on variety Sitara (11.64 %). This study provided an elementay idea about the disease incidence pattern in these zone as well as paved the path for seeking resistance sources under local conditions and recommendation of proper farming practices to combat the drastic effects of collar rot disease.

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