Malaysian Applied Biology Journal

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49_02_02

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Malays. Appl. Biol. (2020) 49(2): 7–12

 

THE EFFECT OF SYNTHETIC FUNGICIDE ON DISEASE

SEVERITY AND PLANT GROWTH OF CHILI PEPPER

(Capsicum annuum L.) INFECTED WITH Phytophthora capsici


RIZKITA RACHMI ESYANTI1*, NADYA FARAH1,3, MUHAMMAD FAKHRI FAIZ1,

MUTHIA GASSANI VERDIANTI1, SUNARDI2 and RAMADHANI SAFITRI2


1School of Life Sciences and Technology, Institut Teknologi Bandung, Indonesia

2East West Seed, Indonesia

3Bali International Research Center for Banana, Indonesia

*E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it


Accepted 15 May 2020, Published online 6 July 2020


ABSTRACT

Phytophthora blight caused by Phytophthora capsici is one of the damaging diseases that cause major loss in chili pepper (Capsicum annuum L.) production worldwide. Some synthetic fungicides containing Metalaxyl-M were reported to be able to control the pathogen’s growth. In order to evaluate the effect of synthetic fungicide on disease severity index (DSI) and plant growth of chili pepper plants after inoculation with P. capsici (104 zoospores/ml), four cultivars were used namely Laba, Pilar, Arimbi and Imola. Each cultivar was treated with a synthetic fungicide and P. capsici (FP), with P. capsici-only (P) and uninoculated plants (C) were used as controls. The result showed that the application of synthetic fungicide was able to control the pathogen’s growth, indicated by the decreased DSI. The application of synthetic fungicide was also able to preserve the growth of chili pepper plants, indicated by the plant height and number of leaves, even after the infection with P. capsici. In conclusion, the application of synthetic fungicide was effective in controlling the growth of P. capsici while preserving the growth of chili pepper plants in cultivar Pilar, Imola, Laba, and Arimbi.


Key words: Phytophthora blight, chilli pepper, synthetic fungicide

 

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