Effect of inundative releases of Trichogramma chilonis in sugarcane

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Authors

  • Regional Agricultural Research Station, Acharya NG Ranga Agricultural University, Anakapalle − 531 001, Andhra Pradesh ,IN
  • Regional Agricultural Research Station, Acharya NG Ranga Agricultural University, Anakapalle − 531 001, Andhra Pradesh ,IN

DOI:

https://doi.org/10.18311/jbc/2020/22829

Keywords:

Field recovery, inundative releases, Trichogramma chilonis

Abstract

Studies on effect of inundative releases of Trichogramma chilonis in sugarcane revealed that the frequency and rate of T. chilonis release had played a significant role in the management of sugarcane shoot borers. Early shoot borer and internode borer incidence was low in T. chilonis @ 75,000/ha/release, 6 times (6.54% and 2.27% ; 3.92% and 5.85%) followed by T. chilonis @ 50,000/ha/release, 6 times (7.9% and 4.26%) whereas untreated control recorded high incidence of early shoot borer and internode borer (10.94% and 15.95 %; 5.12% and 18.25 %) during 2015 and 2016. The sustainability of inundative releases of T. chilonis with highest per cent field recovery was recorded in T. chilonis release @75,000/ha/release, 6 times during monsoon period (68.63% and 20% ) and post monsoon period (29.55% and 37.59 %) as compared to pre monsoon period (12.1% and 9.27 %) of 2015 and 2016. Cane yields recorded in plant crop, 2015 (52.42 t/ha) and ratoon crop, 2016 (47.95 t/ha) revealed that high rate of T. chilonis @ 75,000/ha/release resulted in increased yields (21.77 % and 24.64 %) over untreated control.

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Published

2020-07-17

How to Cite

M., V., & B., B. (2020). Effect of inundative releases of <i>Trichogramma chilonis</i> in sugarcane. Journal of Biological Control, 34(1), 47–51. https://doi.org/10.18311/jbc/2020/22829

Issue

Section

Research Articles
Received 2018-11-28
Accepted 2019-05-10
Published 2020-07-17

 

References

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