cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota bandar lampung,
Lampung
INDONESIA
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Published by Universitas Lampung
ISSN : 14117525     EISSN : 24610399     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Hama dan Penyakit Tropika (JHPT Tropika) publishes articles in plant pests, plant pathogens, plant damage caused by those pests and pathogens and or their management in tropical areas. In addition to basic and applied research papers, JHPT Tropika publishes short communication that have not been published. Before being accepted for publication, all manuscripts must be peer reviewed. The journal is published sixmonthly in March and September.
Arjuna Subject : -
Articles 531 Documents
 50   51   52   53   54 
Kaplan-meier-based survival analysis of Cylas formicarius following exposure to stored Metarhizium anisopliae formulations Lapinangga, Nina; Bunga, Jacqualine Arriani; Sonbai, Jemrifs Herkanus Hati; da-Lopez, Yosefus Frederikus
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 1 (2026): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.126190-199

Abstract

The sweet potato weevil (Cylas formicarius) is a major pest of sweet potato crops, particularly in tropical regions. The entomopathogenic fungus Metarhizium anisopliae is a promising biological control agent; however, its application is often constrained by reduced viability during storage. This study evaluated the efficacy of a dry powder formulation of M. anisopliae stored under ambient tropical conditions for 1 to 6 months. Bioassays assessed conidial density, adult mortality, lethal time to kill 50% of the population (LT₅₀), and survival probability using Kaplan–Meier analysis. Formulations stored for up to 3 months maintained high efficacy, with mortality rates exceeding 82.9%, conidial densities above 2.5 × 10⁸ conidia/g, and LT₅₀ values below 120 hours. In contrast, storage beyond three months significantly reduced conidial viability, increased LT₅₀, and decreased mortality. Kaplan–Meier survival curves showed a clear decline in virulence with increasing storage duration, with the 6-month formulation exhibiting the slowest mortality progression. Significant differences in survival probabilities among storage durations were confirmed statistically (p < 0.05). Morphological observations confirmed fungal-induced mortality, characterized by cuticle darkening, tissue softening, mummification, and external sporulation. Conidial deterioration over time was likely associated with physiological factors such as oxidative stress, lipid peroxidation, and depletion of protective compounds including trehalose and mannitol. Overall, storage duration critically affected the bioefficacy of M. anisopliae. It is therefore recommended that dry formulations be used within three months of production to ensure optimal pest control. These findings provide practical guidance for improving fungal biopesticide shelf life in tropical integrated pest management programs.

Page 54 of 54 | Total Record : 531

 50   51   52   53   54 

Filter by Year

2001 2026


Reset
Filter By Issues
All Issue Vol. 26 No. 1 (2026): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE Vol. 25 No. 2 (2025): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN Vol. 25 No. 1 (2025): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE Vol. 24 No. 2 (2024): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN Vol. 24 No. 1 (2024): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE Vol. 23 No. 2 (2023): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN Vol. 23 No. 1 (2023): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE Vol. 22 No. 2 (2022): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN Vol. 22 No. 1 (2022): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE Vol. 21 No. 2 (2021): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 21 No. 1 (2021): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 20 No. 2 (2020): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 20 No. 1 (2020): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 19 No. 2 (2019): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 19, No 1 (2019): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 2 (2018): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 1 (2018): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 18 No. 1 (2018): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 1 (2018): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 17, No 2 (2017): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 17, No 1 (2017): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 16 No. 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 1 (2016): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 1 (2016): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 16 No. 1 (2016): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 15, No 2 (2015): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 15 No. 2 (2015): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 15 No. 1 (2015): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 14 No. 2 (2014): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 14 No. 1 (2014): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 13 No. 2 (2013): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 13 No. 1 (2013): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 12 No. 2 (2012): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 12 No. 1 (2012): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 11 No. 2 (2011): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 11 No. 1 (2011): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 10 No. 2 (2010): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 10 No. 1 (2010): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 9 No. 2 (2009): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 9 No. 1 (2009): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 8 No. 1 (2008): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 7 No. 2 (2007): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 7 No. 1 (2007): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 6 No. 2 (2006): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 6 No. 1 (2006): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 5 No. 2 (2005): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 5 No. 1 (2005): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 4 No. 2 (2004): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 4, No 1 (2004): Maret, Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 3 No. 2 (2003): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 3 No. 1 (2003): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 2 No. 2 (2002): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 2 No. 1 (2002): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 1 No. 2 (2001): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 1 No. 1 (2001): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA More Issue