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th
The 4 Educational Science International Conference
Towards a Sustainable Future of Education: Preparing Teachers and Prospective Teachers for the Digital Age

SCIED-06

Utilization of Kirinyu STEM (Chromolaena odorata L.) and Brotowali STEM (Tinospora
crispa L.Mies) as Herbal Pesticides in Red Spinach Plant (Amaranthus tricolor L.)

Sonja Lumowa, Jailani, Sri Purwati
Biology Education Study Program, Faculty of Teacher Training and Education, Mulawarman University,
Indonesia
verasonja@yahoo.com

Abstract

Red spinach (Amaranthus tricolor L.) contains protein, fat, carbohydrates, iron, potassium,
calcium, amaranthine, rutin, purines, chlorophyll, phytohormones and vitamins A, B and C.
The demand for red spinach is increasing, but climate change that is not conducive and the
poor quality of products produced by farmers are the reasons for the inhibition of red spinach
commodity production. In red spinach plants, insect pests that are often encountered are leaf
caterpillars such as Spodoptera, plusia, and Hymenia which eat the leaves of red spinach.
Aphids (Myzus persicae) and Thrips sp and mites Pholipagotarsonemus latus are also often
found attacking red spinach plants. This study aims to determine the effect of the extracts of
kirinyu stem (Chromolaena odorata L.) and Brotowali stem (Tinospora crispa L. Mies)
which can be applied to red spinach (Amaranthus tricolor L.) in an effort to overcome the
intensity of pests in the city of Samarinda. The results of this study showed that a mixture of
Brotowali leaf extract and kirinyu leaf extract had a significant effect on reducing pests on
plants. Red spinach with the most effective concentration is 50%. The data obtained from
observations and calculations were then analyzed using Analysis of Variance (ANOVA) and
the treatment was tested by further BNT test with a significant level of 5%. The results of this
study showed that a mixture of Brotowali leaf extract and Kirinyu leaf extract had a
significant effect on reducing pests on red spinach plants with the most effective
concentration of 50%.

Keywords: Kirinyu stem, Brotowali stem, botanical pesticide

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