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August 3, 2026PhytoparasiticaOpen Access

Biotic potential and reproductive parameters of Spodoptera ornithogalli (Guenée, 1852) (Lepidoptera: Noctuidae) in the laboratory

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Randomized trial evaluates reproductive outcomes in Spodoptera ornithogalli, highlighting significant population growth potential.

To evaluate the biotic potential and reproductive parameters of Spodoptera ornithogalli under laboratory conditions.
Conducted two experimental sets: one with one couple per cage and another with one female and five males per cage.
Maintained conditions at 25 ± 1 °C, 70 ± 10% RH, and a 14-hour photophase.
Measured and compared reproductive outcomes such as longevity, mating frequency, fecundity, and various rates of increase.
Biotic potential increased from 1.724 × 10^32 individuals/female/year in the one-couple cage to 6.555 × 10^33 individuals/female/year with five males per female.
Female longevity and durations of pre-oviposition and oviposition were reduced with five males, while fecundity and mating frequency were increased.
Higher net reproductive rate, intrinsic rate of increase, and finite rate of increase were observed in the group with one female and five males, with a shorter mean generation time.

Specht et al. (2026) studied this question.

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