Hostname: page-component-6766d58669-kn6lq Total loading time: 0 Render date: 2026-05-19T12:41:31.466Z Has data issue: false hasContentIssue false

Behavioural responses of four generalist pests to crops and exotic weeds for their sustainable management

Published online by Cambridge University Press:  06 March 2025

Nayan Roy*
Affiliation:
Ecology Research Unit, Department of Zoology, M. U. C. Women’s College, Burdwan, India

Abstract

Leaf epicuticular waxes play a crucial role in host selection of Spilosoma obliqua, Amsacta albistriga, Spodoptera litura, and Spilarctia luteum. The leaf epicuticular waxes of groundnut, soybean, mikania, and parthenium indicated the presence of 25 different n-alkanes (C14 to n-C36) and 15 free fatty acids (FFAs) (C12:0 to C22:0). All the chemical analysis and bioassays were conducted by using the standard protocols. The attraction index (AI %) and oviposition preference index (OPI %) of each pest species towards the combined-synthetic-mixtures of respective leaf wax chemicals (4 n-alkanes [n-C16, n-C18, n-C20, n-C22] + 4 FFAs [C14:0, C16:1, C16:0, C20:0]) were more preferred due to respective wax chemicals. The AI (%) and OPI (%) towards the said mixture (C3) of the selected host plants (groundnut > soybean > parthenium > mikania) were in the order of S. obliqua > S. litura > S. luteum > A. albistriga for better survival and growth of their neonates because of the respective amounts of leaf wax chemicals including other phytoconstituents. The said synthetic mixture in respective leaf equivalent amount (µg leaf−1) acted as the most preferred lure to develop baited trap and or groundnut as trap crop for soybean to support integrated pest management of such crops (groundnut and soybean). It also supports the use of such pest species as biocontrol agent for the exotic weeds (mikania and parthenium). This finding promotes sustainable pest and weed management for climate smart agriculture to maintain and sustain quality of our planet in the near future.

Information

Type
Research Paper
Copyright
© The Author(s), 2025. Published by Cambridge University Press.

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

Supplementary material: File

Roy supplementary material 1

Roy supplementary material
Download Roy supplementary material 1(File)
File 21 KB
Supplementary material: File

Roy supplementary material 2

Roy supplementary material
Download Roy supplementary material 2(File)
File 28.9 KB
Supplementary material: File

Roy supplementary material 3

Roy supplementary material
Download Roy supplementary material 3(File)
File 23.1 KB
Supplementary material: File

Roy supplementary material 4

Roy supplementary material
Download Roy supplementary material 4(File)
File 22.9 KB