Vol. 7 No. 2
Management of foot rot of betelvine (Piper betle L.) caused by Phytophthora parasitica Dastur
Author(s): D. K. SENGUPTA, B. DASGUPTA AND P. DATTA
Abstract: The experiment was carried out during 2006 and 2007 to study the incidence of foot rot of betelvine caused by Phytophthora parasitica and growth, yield, and keeping quality of betelvine by applying Trichoderma harzianum (bio-agent). T. harzianuminoculated in 500 kg oil cake ha-1 was applied once at pre-monsoon, two times during pre and post monsoon and four times at quarterly intervals. Bordeaux mature was used to compare the treatments in preventing the intensity of foot rot. The results revealed that the minimum foot rot disease was recorded where four drenching and eight sprayings of Bordeaux mixture at monthly and fortnightly intervals respectively were applied in 2006, 2007 and pooled analysis of two years data. The maximum foot rot disease was recorded in control treatment in 2006, 2007 and pooled analysis of two years data. The maximum growth, yield parameters like vine elongation, fresh weight of 100 leaves, leaf yield and keeping quality was recorded in treatment where four drenching and eight sprayings of Bordeaux mixture at monthly and fortnightly intervals respectively were applied during 2006, 2007 and pooled analysis of two years data. Highest cost:benefit ratio was recorded where T. harzianum were applied at pre monsoon and lowest cost:benefit was recorded where Bordeaux mixture were applied..
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