Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Cropsaver : Journal of Plant Protection
Danar Dono
Department of Plant Pests and Diseases, Agriculture Faculty, Universitas Padjadjaran, Jatinangor, West Java, Indonesia, 45363
Biochemistry, Genetics & Molecular Biology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Toxicity of Barringtonia asiatica Seed Extract Against Chilo sachariphagus Rohendi Rohendi; Danar Dono; Andang Purnama
CROPSAVER Vol 2, No 1 (2019)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.911 KB) | DOI: 10.24198/cs.v2i1.22297

Abstract

Barringtonia asiatica is one of the plants that the seeds extracts has insecticidal properties. However, the bioactivity of this seed extract has not been tested against Chilo sacchariphagus larvae which is the main pests in sugar cane. The treatment was carried out at several levels of concentration of methanolic seed extract of B. asiatica. The 15 cm of fresh sugarcane shoot dipping into the extract solution in some second. After the solution of extract on the sugarcane shoot dried, the first instar of larvae infested to the sugarcane shoot and then put into 20 cm test tube with 3 cm of diameter.  The duration of feeding on treated sugarcane shoot was two days and on the following day the larvae were fed on sugar cane shoots until the survived larvae reached the 5th instar. The results of the experiment indicated that B. asiatica seed extract was toxic to C. sacchariphagus with an LC50 value of 0.398% at 16 days after treatment. Besides toxic, B. asiatica seed extract also has atifeedant activity, and inhibits the growth of immature of C. sacchariphagus in all tested concentrations.Keyword: Toxicity, antifeedant, lethal concentration, Barringtonia asiatica, Chilo sachariphagus
Effect of the Initial Temperature of Extraction of Neem Cake (Azadirachta indica A. JUSS) on its Toxicity on Crocidolomia pavonana (F.) Larvae Fhera Hardiani; Danar Dono; Ceppy Nasahi
CROPSAVER Vol 2, No 1 (2019)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.197 KB) | DOI: 10.24198/cropsaver.v2i1.22704

Abstract

Crocidolomia pavonana is an important pest that attacks the Brassicaceae. Neem cake is waste from neem seed pressing that can be used as a botanicals insecticide to control insect pests. The effect of the initial temperature of extraction can have an impact on the toxicity of the extract. The aim of this study was to determine the best initial temperature for the extraction of neem cake on mortality, larval development time, feed consumption, larval weight and survival of larvae into pupae and adult. The experimental method used in this research was Randomized Completely Design (RCD) with 4 treatments and 4 replication, i.e. control, extraction of neem cake at initial temperature of 30°C, initial temperature 50°C, and initial temperature 70°C which allows two concentrations of 1% and 3%. The results of the research with the best toxicity were shown in the initial extraction temperature of 50°C at concentrations of  1% and 3% with the mortality reaching 82.5% and 90%. The initial temperature extraction of 50°C also showed lengthened of the larval development time, decreased feeding activity, larval weight and survival of larvae to develop into pupae and imago.
Co-Authors Andang Purnama Ceppy Nasahi Fhera Hardiani Rohendi Rohendi