Work

Effect of varying temperatures on in vitro parasitization efficiency and adult emergence of Trichogramma japonicum (Ashmed)

Year: 2025

Type: article

Abstract: The present experiment was conducted in the Biocontrol laboratory, SKS CARS, Surgi, Rajnandgaon (C.G.) during the years 2023-24 and 2024-25 on effect of varying temperatures (0 °C, 4 °C, and room temperature) on the in-vitro parasitizing efficiency and adult emergence of Trichogramma japonicum. According to the findings, the highest parasitization and emergence rates were recorded in the 1st week across all temperatures, followed by a significant decline. At 0 °C, activity of parasitoids ceased after the 2nd week, indicating poor viability at this temperature. Room temperature supported only short-term viability, with complete loss of parasitization and emergence after the 1st week. In contrast, 4 °C maintained moderate levels of parasitization and emergence over the 10-week period, though both declined gradually with time. These results suggest that 4 °C is the most suitable temperature for extended storage of T. japonicum.

Source: International Journal of Research in Agronomy

DOI: 10.33545/2618060x.2025.v8.i10b.3959

Authors: Anjali Manhar, Rohit Kumar, Jayalaxmi Ganguli, RN Ganguli, Manoj Chandrakar

Institution: Indira Gandhi Agricultural University

Language: English

Topic: Insect behavior and control techniques

Subfield: Insect Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

OpenAlex ID: W4414882736