Population Dynamics of Frankliniella bispinosa (Thysanoptera: Thripidae) and the Predator Orius insidiosus (Hemiptera: Anthocoridae) as Influenced by Flower Color of Lagerstroemia (Lythraceae)

Crapemyrtle is a common landscape planting that is a resource subsidy for beneficial insects. Field studies were conducted to determine the influence of crapemyrtle flower color on the population abundances and predator—prey dynamics of the herbivorous Frankliniella species and the predator Orius in...

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Bibliographic Details
Published in:Environmental entomology 2015-06, Vol.44 (3), p.668-679
Main Authors: Funderburk, Charles, Funderburk, Joe, Tyler-Julian, Kara, Srivastava, Mrittunjai, Knox, Gary, Andersen, Peter, Adkins, Scott
Format: Article
Language:English
Subjects:
adults
Animals
Anthocoridae
beneficial insects
clones
Color
epiphytes
fecundity
Female
Florida
flower color
flowers
Flowers - physiology
Food Chain
Frankliniella
Frankliniella bispinosa
Frankliniella tritici
Hemiptera
herbivores
Heteroptera - growth & development
Heteroptera - physiology
hosts
immatures
Lagerstroemia
Lagerstroemia - physiology
Lagerstroemia indica
landscapes
Lavandula
Lythraceae
Male
numerical response
Nymph - physiology
nymphs
Orius insidiosus
Pigmentation
planting
PLANT—INSECT INTERACTIONS
population
Population Dynamics
predators
summer
Thripidae
Thysanoptera
Thysanoptera - physiology
Tillandsia usneoides
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Summary:Crapemyrtle is a common landscape planting that is a resource subsidy for beneficial insects. Field studies were conducted to determine the influence of crapemyrtle flower color on the population abundances and predator—prey dynamics of the herbivorous Frankliniella species and the predator Orius insidiosus. Adults and immatures of predator and prey were highly anthophilous, preferring white ‘Acoma' flowers compared with lavender ‘Apalachee', red ‘Carolina Beauty', and pink ‘Choctaw'. The predator was aggregated with its prey in a density-dependent manner: the adults by preferring the crapemyrtle clones also preferred by the thrips and the nymphs by direct tracking or as a function of increased prey and fecundity. Acoma was best for preference and buildup of O. insidiosus populations, and it was the only clone where there was no buildup in thrips populations. Two species of Karnyothrips (Thysanoptera: Phlaoethripidae), predators of small insects, were common in Tillandsia usneoides, an epiphyte on the crapemyrtle. Crapemyrtle is a bridge to enhance populations of O. insidiosus during summer months when there are few other hosts in the southern USA.
ISSN:0046-225X
1938-2936
DOI:10.1093/ee/nvv057