Effect of different plant extracts on growth indices of tobacco caterpillar (Spodoptera litura) on soybean under laboratory conditions


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Effect of different plant extracts on growth indices of tobacco caterpillar (Spodoptera litura) on soybean under laboratory conditions

Authors

  • NAVYA MATCHA Department of Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur-482 004, Madhya Pradesh
  • A K BHOWMICK Department of Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur-482 004, Madhya Pradesh

https://doi.org/10.56739/jor.v37iSpecialissue.141036

Keywords:

Growth indices, Plant extracts, Spodoptera litura, Soybean

Abstract

Spodoptera litura (F.) is a polyphagous insect among which soybean is one of its hosts. Six different botanicals
i.e., three plant extracts (Datura leaf extract, Marigold leaf extract and Annona leaf extract) and three plant oils (Neem oil, Eucalyptus oil and Karanj oil) were used by preparing 5% aqueous solutions. Soybean leaves were treated with botanicals by leaf dip method and fed to prestarved second instar larvae and further studied their growth indices. The results indicated that Eucalyptus oil showed least larval index (0.45 in 3rd instar, 0.47 in 4th instar, 0.58 in 5th instar, 0.51 in 6th instar and 0.61 in pre-pupa), pupal index (0.44), adult index (only in case of males as 0.52) and lowest oviposition index (0.20). While, neem oil showed least adult index in females (0.82) and lowest total growth index (2.29).

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References

Anurag Sharma, Rakesh Gupta and Reecha Kanwar 2008. Effect of plant extracts on fecundity of Spodoptera litura (F.).

Indian Journal of Plant Protection, 36(1): 139-141.

Audrey J L and Murray B I 2004. Insecticidal activity of crude seed extracts of Annona spp., Lansium domesticum and

Sandoricum koetjape against lepidopteran larvae. Phytoparasitica, 32(1): 30-37.

Rajguru M and Amar N S 2012. Comparative efficacy of plant extracts alone and in combination with Bacillus thuringiensis sub sp. kurstaki against Spodoptera litura (F.) larvae. Journal of Biopesticides, 5(1): 81-86.

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Submitted

2023-08-17

Published

2020-03-12

How to Cite

NAVYA MATCHA, & A K BHOWMICK. (2020). Effect of different plant extracts on growth indices of tobacco caterpillar (Spodoptera litura) on soybean under laboratory conditions: Effect of different plant extracts on growth indices of tobacco caterpillar (Spodoptera litura) on soybean under laboratory conditions. Journal of Oilseeds Research, 37(Specialissue). https://doi.org/10.56739/jor.v37iSpecialissue.141036