Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Cropsaver : Journal of Plant Protection
Widayani, Neneng Sri
Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran
Biochemistry, Genetics & Molecular Biology

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Cropsaver : Journal of Plant Protection

 1 
Testing The Effect of Temperature, Storage Time, The Residual Test of Neem Oil Formulation (Azadirachta indica A. JUSS) and Bitung Formulation (Baringtonia asiatica) to Its Toxicity Against Large Cabbage Heart Caterpillar (Crocidolomia pavonana F) Widayani, Neneng Sri; Haq, Afifah Nashirotul; Dono, Danar
CROPSAVER - Journal of Plant Protection Vol 1, No 1 (2018)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the effect of temperature and storage time of neem formulation and residual test of neem formulation and bitung formulation to its toxicity on C. pavonana larvae. The formulations tested on the storability and temperature test using the newly prepared, neem formula has been stored for 19 months at room temperature 24.6-31,7 C, and stored in low temperature (4oC) as well as controls. The toxicity of the neem oil formulation was tested at concentrations of 1%, 2%, and 3%. Residual testing was performed by spraying and the residual test samples were taken on days 0,1,2,3,5,7,9,11, and 13 days after application of insecticide spraying. The results showed that storage at low temperatures (temperature 4oC) for 19 months can maintain the toxicity of the neem formulation to C. pavonana larvae. while storage at room temperature for 19 months resulted in a decreased toxicity. The residual activity of the neem formulations of concentration 0.8% and 2.4% ceased to cause the death C. pavonana larvae at the residual age of 13.34 days and 14.66 days. The activity of Bitung formulation concentration of 1.1% and 2.8% ceased to causing death C. pavonana larvae at the residual age of 11.33 days and 16.26 days.Keyword: Azadirachta indica, Baringtonia asiatica, Crocidolomia pavonana, Residue test, Storability test, Temperatures, Toxicity,
Laboratory Evaluation of Neem formulation bioactivity against Crocidolomia pavonana F. larvae Ramadhan, Raden Arif Malik; Widayani, Neneng Sri; Dono, Danar
CROPSAVER - Journal of Plant Protection Vol 1, No 1 (2018)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (28.078 KB)

Abstract

This study aims to evaluate the bioactivity of the Neem formulation  against Crocidolomia pavonana larvae in the laboratory. The study using six treatments and three replications. The treatment consisted of control, the neem formulaconcentrations of 0.3%, 0.5%, 0.8%, 1.3%, and 2.3%. The test was done by leaf feeding method and tested on C. pavonana instar II. The results showed that the neem formulation 2.3% could increase mortality of C. pavonana larvae with mortalityrate of 95% population and LC  value aqual to 0.82973. Neem formulation can inhibit the development of C. pavonanalarvae from instar I to instar IV, decrease feed intake, and decrease the dry weight of C. pavonana larvae instar IV. Keywords: Azadirachta indica, Bioactivity, Crocidolomia pavonana, neem formulation
Laboratory Evaluation of Neem formulation bioactivity against Crocidolomia pavonana F. larvae Ramadhan, Raden Arif Malik; Widayani, Neneng Sri; Dono, Danar
CROPSAVER Vol 1, No 1 (2018)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (28.078 KB)

Abstract

This study aims to evaluate the bioactivity of the Neem formulation  against Crocidolomia pavonana larvae in the laboratory. The study using six treatments and three replications. The treatment consisted of control, the neem formulaconcentrations of 0.3%, 0.5%, 0.8%, 1.3%, and 2.3%. The test was done by leaf feeding method and tested on C. pavonana instar II. The results showed that the neem formulation 2.3% could increase mortality of C. pavonana larvae with mortalityrate of 95% population and LC  value aqual to 0.82973. Neem formulation can inhibit the development of C. pavonanalarvae from instar I to instar IV, decrease feed intake, and decrease the dry weight of C. pavonana larvae instar IV. Keywords: Azadirachta indica, Bioactivity, Crocidolomia pavonana, neem formulation
Co-Authors Danar Dono Haq, Afifah Nashirotul R. Arif Malik Ramadhan