English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Background Spodoptera litura  (Fab.) (Lepidoptera: Noctuidae) commonly known as tobacco caterpillar is a polyphagous pest that causes significant damage to many agricultural crops. The extensive use of chemical insecticides against  S. litura  has resulted in development of resistance. In order to find potential biocontrol agents, gut microbes were investigated for insecticidal potential. These microbes live in a diverse relationship with insects that may vary from beneficial to pathogenic. Results Enterococcus casseliflavus ,  Enterococcus mundtii ,  Serratia marcescens ,  Klebsiella pneumoniae ,  Pseudomonas paralactis  and  Pantoea brenneri  were isolated from adults of  S. litura.  Screening of these microbial isolates for insecticidal potential against  S. litura  showed higher larval mortality due to  K. pneumoniae  and  P. paralactis . These bacteria also negatively affected the development of insect along with significant decline in relative growth and consumption rate as well as efficiency of conversion of ingested and digested food of insect. The bacteria significantly decreased the reproductive potential of insect. Perturbations in the composition of gut microbiome and damage to gut epithelium were also observed that might be associated with decreased survival of this insect. Conclusions Our study reveals the toxic effects of  K. pneumoniae  and  P. paralactis  on biology of  S. litura . These bacteria may be used as potential candidates for developing ecofriendly strategies to manage this insect pest.

Insecticidal and growth inhibitory activity of gut microbes isolated from adults of Spodoptera litura (Fab.)