Management of Phytophthora leaf blight and fruit rot of capsicum through induction of resistance

Authors

  • MONICA SHARMA*, ADIKSHITA and KAUSHAL ATTRI

Keywords:

Acibenzolar-S-Methyl (ASM), DL-b-amino-n-butyric acid (BABA), Systemic Acquired Resistance (SAR), induced resistance

Abstract

Survey of Solan and Sirmaur districts of Himachal Pradesh was conducted to record the prevalence of Phytophthora leaf blight and fruit rot of capsicum. The severity of the leaf blight ranged from 15.6 to 89.6 per cent whereas incidence of fruit rot ranged from 10 to 60 per cent. For the management of disease through abiotic resistance inducers, experiments were laid out under natural epiphytotic conditions. Among the abiotic resistance inducers, two foliar sprays of Acibenzolar-S-methyl (10µM) was most effective in managing the disease followed by DL-b-amino-n-butyric acid (BABA) (1 mM). The severity of leaf blight was 10.3 percent and fruit rot incidence was 21.6 percent in foliar spray with Acibenzolar-S-Methyl (10µM). All the treatments of abiotic resistance-inducers increased the yield significantly compared to the un-treated control. The maximum yield of 15.7 kg/plot was observed in treatment with Acibenzolar-S-methyl (10µM) followed by 14.6 kg/plot in treatment with DL- b-amino-n-butyric acid (BABA)(1mM). The induced resistance could be used as an alternative to reduce the use of fungicides for the management of Phytophthora leaf blight and fruit rot incidence.

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Issue

Vol. 69 No. 4s (2016): Indian Phytopathology : Special Issue

Section

Research Articles

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How to Cite

KAUSHAL ATTRI, M. S. A. and. (2016). Management of Phytophthora leaf blight and fruit rot of capsicum through induction of resistance. Indian Phytopathology, 69(4s), 212-214. http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/71284