Use of Pyriproxyfen to Induce Oogenesis in Diapausing Megacopta cribraria (Heteroptera: Plataspidae), and Evaluation of Pyriproxyfen-Induced Eggs for Rearing the Parasitoid Paratelenomus saccharalis (Hymenoptera: Scelionidae)

The mass rearing of hymenopteran egg parasitoids requires an abundant supply of host eggs. The onset of reproductive diapause and subsequent decline in egg production poses a challenge for parasitoid rearing when using host colonies augmented by field-collected insects. We investigated the applicati...

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Published inInsects (Basel, Switzerland) Vol. 13; no. 1; p. 89
Main Authors Penca, Cory, Goltz, Nicholas C, Hodges, Amanda C, Leppla, Norman C, Eger, Joseph E, Smith, Trevor R
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 13.01.2022
MDPI
Subjects
Approximation
biological control
Diapause
Eclosion
egg parasitoid
Egg production
Eggs
Females
Generalized linear models
Heteroptera
Host-parasite interactions
Hymenoptera
Insects
juvenile hormone
Juvenile hormones
kudzu bug
Mass rearing
Megacopta cribraria
Oogenesis
Ovaries
Oviposition
Parasitoids
Paratelenomus saccharalis
Plataspidae
Production costs
Pyriproxyfen
Scelionidae
Soybeans
Survival analysis
Yield
Florida
United States > US
diapause
egg parasitoid
biological control
kudzu bug
juvenile hormone
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Summary:The mass rearing of hymenopteran egg parasitoids requires an abundant supply of host eggs. The onset of reproductive diapause and subsequent decline in egg production poses a challenge for parasitoid rearing when using host colonies augmented by field-collected insects. We investigated the application of pyriproxyfen, a juvenile hormone analog, to induce oviposition in diapausing adult kudzu bugs, (Fabricius) (Heteroptera: Plataspidae), and the use of eggs produced by pyriproxyfen-treated kudzu bugs to rear the egg parasitoid, (Dodd) (Hymenoptera: Scelionidae). The effects of pyriproxyfen and photoperiod treatments on host mortality, egg production, and rates of parasitoid eclosion from the eggs were used to calculate the parasitoid yield for the different treatment regimes. A combination of pyriproxyfen and a long-day photoperiod increased the parasitoid yield by 87% compared to acetone and a long-day photoperiod. The general applicability of JH-analog mediated egg production for parasitoid rearing is discussed.
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ISSN:2075-4450
2075-4450
DOI:10.3390/insects13010089