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

We investigated the role of a brown seaweed alga, Sargassum tenerrimum (J. Agardh), against Dysdercus cingulatus (Fab.), which is aneconomically important cotton pest in many parts of Asia. Sargassumtenerrimum has been used as a source of fertilizers and drugs, butthere is no information available in the literature about its use inecofriendly pest management. The impact of benzene (BN), chloroform(CH), and a mixture of benzene and chloroform (BNCH) extracts, as wellas two chromatographic fractions of BNCH (FR1 and FR2) wereinvestigated for their insecticidal and ovipositional propertiesagainst D. cingulatus. The BE extract showed the best insecticidalactivity (LC50 = 0.009%), higher than BNCH (LC50 = 0.021%) and CHextracts (LC50 = 0.2481%), and all the extracts reduced the totalnymphal developmental period of the pest in a dose-dependent way. Adultlongevity of both males and females was reduced by the CH and BEextracts. The CH extract reduced D. cingulatus oviposition,preoviposition, and post-oviposition periods, as well as fecundity.Females emerging from the BE category could not lay eggs. All theextracts significantly reduced both total body protein and genomic DNAcontent. The BECH fractions, FR1 and FR2, also exhibited nymphicidalactivity against the pest. However, these fractions did notsignificantly alter the nymphal developmental period. Results indicatethat these seaweed extracts can be used as biopesticides for pestmanagement.

Nymphicidal and Ovipositional Efficacy of Seaweed Sargassum tenerrimum (J. Agardh) against Dysdercus cingulatus (Fab.) (Pyrrhocoridae)