Cited by 52Insect Pest Control StrategiesInsect-Plant Interactions and ControlInsect Resistance and Genetics

Effects of Neem-Based Insecticides on Consumption and Utilization of Food in Larvae of Spodoptera eridania(Lepidoptera: Noctuidae)

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Shannag, Hail K., Capinera, John L., Freihat, Nawaf M.·2015·Journal of Insect Science

Abstract

Neem-based insecticides, which have many biological properties, were evaluated for effects on growth, food intake, survival, and nutritional indices of Spodoptera eridania (Stoll), an important pest of crops in the western hemisphere. Short-term consumption of food treated with neem-derived insecticides by second-instar larvae resulted in suppressed feeding, retarded weight gain, and prolonged development time after the treated larvae had been transferred to untreated synthetic insect diet. Relative consumption rate, efficiency of conversion of ingested food, relative growth rate, approximate digestibility, and assimilation rate of food were reduced after treatment with neem products, especially by the higher concentrations of neem. Efficiency of conversion of digested food was not affected. Also, application of pure neem oil and Azatrol at high concentrations induced 20 and 13.3% larval mortality, respectively, whereas mortality caused by the lower concentrations of both chemicals did not exceed 3.3%. Larvae of S. eridania were more sensitive to pure neem oil than to Azatrol. These observations may reflect interference of neem with regulation of feeding and metabolism, as well as with anatomy and function of midgut tissues.

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Crossref · 10.1093/jisesa/iev134

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Authors
Shannag, H. K., Capinera, J. L., & Freihat, N. M.
Affiliations
  • Jordan University of Science and Technology (JO)
  • University of Florida (US)
Corresponding author
Capinera, John L.
Venue
Journal of Insect Science
Published
2015
Volume
15
Issue
1
Pages
152
ISSN
1536-2442 (ISSN-L)
OpenAlex
W2216816296
Cited by
52
References
63
Citations by year
2026: 1 · 2025: 5 · 2024: 11 · 2023: 9 · 2022: 5 · 2021: 8 · 2020: 4 · 2019: 3 · 2018: 2 · 2017: 3 · 2016: 1
FWCI
2.42
Type
journal article
Language
en
Open access
Locations
  • Journal of Insect Science (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Insect Pest Control Strategies
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Insect Resistance and Genetics
Keywords
neem-based insecticides, Spodoptera eridania, neem oil, larval feeding, dietary intake, larval growth, larval mortality, midgut, insect nutrition, biological control

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