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Biocontrol of Phenacoccus solenopsis Tinsley using entomopathogenic fungi and bacteria.
- Source :
- Frontiers in Sustainable Food Systems; 2024, p1-14, 14p
- Publication Year :
- 2024
-
Abstract
- Introduction: Phenacoccus solenopsis Tinsley, poses a significant threat to a range of crops worldwide. This study aimed to evaluate the efficacy of entomopathogenic fungi (Alternaria murispora and Alternaria destruens) and bacteria (Streptomyces bellus-E23-2) against adult females of P. solenopsis under laboratory (26 ± 2°C) and greenhouse conditions. Methods: Laboratory trials tested A. murispora, A. destruens (10<superscript>4</superscript>-10<superscript>10</superscript> conidia mL<superscript>-1</superscript>), and S. bellus E23-2 (10<superscript>4</superscript>-10<superscript>10</superscript> cfu mL<superscript>-1</superscript>), alone and in combination, recording mortality rates and LC<subscript>50</subscript> values. Greenhouse trials tested the best lab treatments on infested potato plants, monitoring pest density and plant quality. Results and discussion: In laboratory trials, A. murispora at 1010 conidia mL<superscript>-1</superscript> was the most effective, achieved 79.7% mortality (LC<subscript>50</subscript> = 1.338 x 10<superscript>8</superscript> conidia mL<superscript>-1</superscript> after 14 days). Combination treatments significantly enhanced efficacy, with A. murispora + S. bellus E23-2 (10<superscript>10</superscript> conidia mL<superscript>-1</superscript> + 10<superscript>10</superscript> cfu mL<superscript>-1</superscript>) reaching 85.3% mortality. In greenhouse trials, the combination treatments notably reduced P. solenopsis densities and increased the number of infected mealybugs, with A. murispora + S. bellus E23-2 being the most effective. These treatments did not harm plant quality, unlike imidacloprid, which reduced visual quality despite its high efficacy. Alternaria murispora and S. bellus E23-2 effectively control P. solenopsis, providing a sustainable, plant-safe alternative to chemical insecticides. [ABSTRACT FROM AUTHOR]
- Subjects :
- SUSTAINABLE agriculture
FIRE ants
ENTOMOPATHOGENIC fungi
PEST control
ALTERNARIA
Subjects
Details
- Language :
- English
- ISSN :
- 2571581X
- Database :
- Complementary Index
- Journal :
- Frontiers in Sustainable Food Systems
- Publication Type :
- Academic Journal
- Accession number :
- 180399457
- Full Text :
- https://doi.org/10.3389/fsufs.2024.1444917