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Development and Reproduction of the Predator Orius insidiosus (Hemiptera: Anthocoridae) Reared on Diets of Selected Plant Material and Arthropod Prey
Development, survival, adult longevity, daily ovipositional rate, and fecundity of Orius insidiosus (Say), a predaceous anthocorid bug, were studied by comparing effects on those biological functions… Expand
Intraguild predation between an introduced lady beetle, Harmonia axyridis (Coleoptera: Coccinellidae), and a native lady beetle, Coleomegilla maculata (Coleoptera: Coccinellidae).
The capability of H. axyridis to develop on a diet of only C. maculata eggs and the propensity for either species to prey upon the other were tested, as well as the tendency of each species to cannibalize similar-sized larvae. Expand
Parasitism and predation of stink bug eggs in soybean and alfalfa fields.
- K. Yeargan
- 1 August 1979
Four species of parasites were recovered, of which Telenomus podisi Ashmead was the predominant egg parasite of all 4 host species studied in soybean and alfalfa and Trissolcus euschisti (Ashmead) was also recovered from pentatomid eggs collected from soybeans and several other plant species. Expand
Effect of Pollen on Coleomegilla maculata (Coleoptera: Coccinellidae) Population Density, Predation, and Cannibalism in Sweet Corn
Even though C. maculata populations may increase during anthesis in corn, this increased abundance is not likely to translate into increased predation on H. zea eggs, suggesting that abundant pollen diverts C. Maculata from carnivory. Expand
Prey and Periodicity of Pardosa ramulosa (McCook) in Alfalfa
- K. Yeargan
- 1 February 1975
Visual observations of predation by Pardosa ramulosa (McCook) in alfalfa fields indicate that Hemiptera, Diptera, and Araneae are important prey of this wolf spider. Time-sort pitfall trapping showed… Expand
Identification and Diel Activity Patterns of Predators Attacking Helicoverpa zea (Lepidoptera: Noctuidae) Eggs in Soybean and Sweet Corn
The complex of predators feeding on lepidopteran eggs [Helicoverpa zea (Boddie)] and the key predators discovered in this study were different in each crop and the period of peak egg predation did also. Expand
Effects of Temperature on Developmental Rate of Telenomus podisi (Hymenoptera: Scelionidae)
- K. Yeargan
- 15 May 1980
Male parasites developed from egg to adult emergence faster than females; male parasites did not emerge at 15.5°C, while both males and females failed to emerge at 32.2°C. Expand
Predation by Orius insidiosus on the Soybean Thrips, Sericothrips variabilis : Effect of Prey Stage and Density
The predatory capabilities of nymphal and adult Orius insidiosus (Say) preying on larval and adult soybean thrips, Sericothrips variabilis (Beach), were assessed under laboratory conditions and appeared to feed past satiation at the high densities of soybean thrive. Expand
Development and survivorship of the green stink bug, Acrosternum hilare (Hemiptera: Pentatomidae) on soybean.
The influence of temperature, studied under eight constant-temperature regimes, was similar with regard to rate of development, adult body size, and nymphal survivorship for cohorts of Acrosternum… Expand
Effect of Temperature on the Development of Orius insidiosus, with Notes on Laboratory Rearing
The duration of egg development and total nymphal developmental time for Orius insidiosus (Say) decreased significantly with each increase in temperature, but did not differ significantly between 28 and 32°C. Expand