In vitro Evaluation of Entomopathogenic Fungi for the Management of Broad Mite, Polyphagotarsonemus latus Occurrence on Mulberry

B.S. Ramesha *

Department of Studies in Sericulture Science, University of Mysore, Manasagangotri, Mysuru –570006, India.

B. Sannappa

Department of Studies in Sericulture Science, University of Mysore, Manasagangotri, Mysuru –570006, India.

*Author to whom correspondence should be addressed.


Abstract

The in vitro evaluation of two entomopathogenic fungi, Lecanicillium lecanii and Hirsutella thompsonii, was conducted to assess their efficacy against the Broad mite, Polyphagotarsonemus latus, damaging mulberry. The study measured the cumulative mortality rates of Broad mites at 1, 3, 5, and 7 days after Spraying (DAS) of the fungi at different concentrations (1.5, 2.5, and 3.0 ml/l). Significant variations in mite mortality were observed across different treatments and time points. The highest mortality rate was 65.87 ± 1.61% with H. thompsonii at 3.0 ml/l, while the lowest was at 1.5 ml/l with a 43.86 ± 0.90% mortality rate at one DAS. Three days after spray, H. thompsonii at 3.0 ml/l showed the highest mortality rate (82.00 ± 1.05%), with the least effective being at 1.5 ml/l (53.60 ± 3.20%). At five days after treatment, the highest mortality was 95.60 ± 1.31% observed in H. thompsonii at 3.0 ml/l, whereas L. lecanii recorded 91.34 ± 0.76% with. By the seventh day, H. thompsonii at 3.0 ml/l achieved the highest mortality rate of 98.80 ± 0.65%, while L. lecanii showed 98.00 ± 0.42%. 

Keywords: Broad mite, entomopathogenic, Hirsutella thompsonii, Lecanicillium lecanii, mulberry, Polyphagotarsonemus latus


How to Cite

Ramesha, B.S., and B. Sannappa. 2024. “In Vitro Evaluation of Entomopathogenic Fungi for the Management of Broad Mite, Polyphagotarsonemus Latus Occurrence on Mulberry”. International Journal of Plant & Soil Science 36 (7):697-702. https://doi.org/10.9734/ijpss/2024/v36i74781.

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