CD Skripsi
Uji Konsentrasi Ekstrak Daun Sirih Hutan (Piper Aduncum L.) Berpelarut Organik Terhadap Wereng Coklat (Nilaparvata Lugens Stall.)
ABSTRACT
Rice is one of the priotity food crop in Indonesia. The main problem faced by rice cultivation is the attack of the brown planthopper (Nilaparvata lugens Stall.). The brown planthopper is one of the most important and feared pest in rice cultivation, because it can cause a decrease in production up to 100% by causing hopperburn symptoms and becoma a desease vector. Botanical pesticide of spiked pepper (Piper aduncum L.) can be the alternatif to controling brown planthopper in a safe way. This research aims to obtain effective concentration to controling brown planthopper. The research was conducted at The Plant Pest Laboratory Faculty of Agriculture and Organic Chemistry and Natural Materials Laboratory Faculty of Engineering, Riau University, in November 2021 untill Januari 2021, used completely randomized design (CRD) consist of 6 treatments 4 replications. The treatment application used different concentrations, including 0%, 0.20%, 0.40%, 0.60%, 0.80%, and 100%. The result showed that different concentration had significant effect on the death of the brown planthopper. The right concentration to control brown planthopper is concentration 0.60% of spiked pepper leaf extract with a total mortality up to 82,50%, first time death 3,25 hours, and lethal time of 50% death in 10 hours.
Keywords: Piper aduncum L., Nilaparvata lugens Stall., Botanical Pesticide
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