Effect of novel formulation of Bacillus thuringiensis var. kurstaki (DOR Bt-127) against semilooper (Achaea janata) in castor


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Effect of novel formulation of Bacillus thuringiensis var. kurstaki (DOR Bt-127) against semilooper (Achaea janata) in castor

Authors

  • V VINEELA ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad-500 030, Telangana
  • P S VIMALA DEVI ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad-500 030, Telangana
  • P DURAIMURUGAN ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad-500 030, Telangana

https://doi.org/10.56739/jor.v37iSpecialissue.141024

Keywords:

Bacillus thuringiensis var. kurstaki, Castor, Formulation, Efficacy, Semilooper

Abstract

Semilooper, Achaea janata feeds on many different species of plants among which castor is one of the most
preferred hosts. DOR Bt-127 was multiplied through solid state fermentation and subjected to milling in a planetary ball mill. 559 nm particles of Bt technical gave 100% mortality against A. janata @ 0.6 mg/l. Field evaluation of Bt127 SC (33.3%) formulation lowered A. janata larval population (97.3 to 98.1% reduction over control by 3 days after treatment).

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References

Rao M S, Rao C R, Srinivas K, Pratibha G, Sekhar S V, Vani G S and Venkateswarlu B 2012. Intercropping for management of insect pests of castor, Ricinus communis, in the semi-arid tropics of India. Journal of Insect Science, 12(1): 14.

Vineela V, Nataraj T, Reddy G and Vimala Devi P S 2016. Enhanced bioefficacy of Bacillus thuringiensis var.

kurstaki against Spodoptera litura (Lepidoptera: Noctuidae) through particle size reduction and formulation as a suspension concentrate. Biocontrol Science and Technology, 1-12.

Ravi Charan S, Lakshmi Narasu M and Vimala Devi P S 2013. Genotyping and molecular characterization of local Bacillus thuringiensis isolates of DOR by using PCR based methods. International Journal of Biotechnology & Biochemistry, 9: 101–113.

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Submitted

2023-08-17

Published

2020-03-12

How to Cite

V VINEELA, P S VIMALA DEVI, & P DURAIMURUGAN. (2020). Effect of novel formulation of Bacillus thuringiensis var. kurstaki (DOR Bt-127) against semilooper (Achaea janata) in castor: Effect of novel formulation of Bacillus thuringiensis var. kurstaki (DOR Bt-127) against semilooper (Achaea janata) in castor. Journal of Oilseeds Research, 37(Specialissue). https://doi.org/10.56739/jor.v37iSpecialissue.141024