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Journal : AGROLOGIA : Jurnal Ilmu Budidaya Tanaman

Efek Pemberian Daun Sirsak (Annona Muricata L.) Sebagai Insektisida Botani Terhadap Mortalitas Sitophilus oryzae Debby Moniharapon; Maria Nindatu; Faustinus Sarbunan
Agrologia Vol 4, No 2 (2015)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v4i2.209

Abstract

The use of pesticides botanists to be the solution due to the use of chemical pesticides in controlling pests unwise caused negative impact on the environment. This study aims to determine the effectiveness of the leaves of the Annona muricata on mortality of Sitophilus oryzae. Research conducted at the Laboratory of Taxonomy Department of Biology, Faculty of Mathematics and Natural Sciences Ambon. The treatments tested was the heavy leaves of the soursop, consists of five levels, namely 0 g, 20 g, 25 g, 30 g and 35 g, using a completely randomized design with four replications. The results showed that showed that the treatment leaves of the Annona muricata which is effective against Sitophilus oryzae mortality was 35 g with a mortality rate reached 78.31%.
Efektifitas Ekstrak Cabai Merah (Capsicum annum L) Terhadap Mortalitas Kutu Daun (Aphis gossypli) Pada Tanaman Cabai Maria Nindatu; Debby Moniharapon; Stesiana Latuputty
Agrologia Vol 5, No 1 (2016): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v5i1.192

Abstract

Red chili (Capsicum annuum L.) is an important commodity and has high economic value in Indonesia. Problems encountered in the cultivation of chili in Indonesia decreased productivity due to pests attack. Aphids (Aphis gossypii) is a major pest that attacks the chili leaves. This research was aimed to determine the effectiveness of ered pepper (Capsicum annuum L.) extract on mortality of aphids; especially  the effective concentration and LC50 of red chili extract on mortality of aphids (Aphis gossypii). This research tested five concentration of chili extract treatments with four replicates each. Third instar of nymphs were fasted for 30 minutes before, then nymphs attached to the chili leaves were trasferred into the petri dish. Each petri dish filled with 10 nymph of Aphis gossypii. Red chili extract of 3%, 5%, 7% and 9% sprayed 3 times on the nymph. Mortality rate was calculated 24 hours after application. The results showed that the extract of red pepper were effective to kill aphids nymphs, the lowest mortality was  35% at a concentration of 3% and the highest one was up to 92.5% at a concentration of 9%. Effective concentration (LC50) extract of red pepper that cause 50% of the mortality of the aphids for 24 hours of testing was  7.46%.