• Soil type regulates the develo...

*Result*: Soil type regulates the development and insecticide susceptibility of Spodoptera frugiperda by modulating maize growth and nutritional content.

Title:
Soil type regulates the development and insecticide susceptibility of Spodoptera frugiperda by modulating maize growth and nutritional content.
Authors:
Deng SW; Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China., Elzaki MEA; Department of Pesticides, Abu Yazn and Yamn for Agricultural Services, Khartoum 11111, Sudan., Liang W; Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China., Hafeez M; Department of Agriculture, Veterinary, and Rangeland Science, University of Nevada Reno, Reno, NV 89557, USA., Li WT; Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China., Wang RL; Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China. Electronic address: rlw2009@scau.edu.cn.
Source:
Pesticide biochemistry and physiology [Pestic Biochem Physiol] 2026 Mar; Vol. 218, pp. 106952. Date of Electronic Publication: 2026 Jan 10.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Academic Press Country of Publication: United States NLM ID: 1301573 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-9939 (Electronic) Linking ISSN: 00483575 NLM ISO Abbreviation: Pestic Biochem Physiol Subsets: MEDLINE
Imprint Name(s):
Original Publication: New York Ny : Academic Press
MeSH Terms:
Zea mays*/growth & development , Zea mays*/metabolism , Zea mays*/parasitology , Spodoptera*/growth & development , Spodoptera*/drug effects , Insecticides*/pharmacology , Soil*/chemistry, Larva/drug effects ; Larva/growth & development ; Pyrethrins/pharmacology ; Animals ; Insecticide Resistance ; Nitriles
Contributed Indexing:
Keywords: Cytochrome P450; Host plant; Insecticide susceptibility; Soil; Spodoptera frugiperda
Substance Nomenclature:
0 (Insecticides)
0 (Soil)
0 (Pyrethrins)
V0V73PEB8M (cyhalothrin)
0 (Nitriles)
Entry Date(s):
Date Created: 20260202 Date Completed: 20260202 Latest Revision: 20260202
Update Code:
20260203
DOI:
10.1016/j.pestbp.2026.106952
PMID:
41629020
Database:
MEDLINE

*Further Information*

*The fall armyworm, Spodoptera frugiperda, is a globally significant invasive agricultural pest. Soil type is a key environmental factor. However, how soil affects the development and insecticide sensitivity of this pest through the host plant remains unclear. This study investigated maize growth and nutritional status under three soil types (latosolic red soil, cinnamon soil, and black soil) and assessed the corresponding effects on the development and insecticide sensitivity of S. frugiperda feeding on the maize. Results showed that, compared to maize grown in relatively infertile latosolic red soil, cultivation in cinnamon or black soil significantly enhanced maize biomass accumulation and leaf nutrient levels. Larvae reared on maize from cinnamon or black soil exhibited significantly higher survival rates and improved food digestibility, alongside prolonged larval development but shorter adult longevity, compared to those fed on latosolic red soil maize. Furthermore, larval body weight increased substantially (by 37.34-54.92% at the 4th instar), while susceptibility to lambda-cyhalothrin decreased, evidenced by 1.64-1.97 times higher LC<subscript>50</subscript> values. Regression analysis indicated a significant positive correlation between LC<subscript>50</subscript> and larval weight (p = 0.014, R<sup>2</sup> = 0.99). Structural Equation Modeling (SEM) confirmed an indirect effect of soil on LC<subscript>50</subscript> (indirect effect = 0.834). Random Forest modeling and amino acid supplementation experiments further identified leucine and valine as the key nutritional factors mediating these effects. This study reveals the complex soil-pest-insecticide susceptibility relationship and underscores the importance of integrating soil properties into integrated pest management. The findings provide a scientific basis for developing precise and quantitative pest control strategies tailored to specific field soil conditions.
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