S. Ferkovich

Publications61
h-index20
Citations878
Highly Influential Citations13
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Interactions Among Helicoverpa armigera (Lepidoptera: Noctuidae), Its Larval Endoparasitoid Microplitis croceipes (Hymenoptera: Braconidae), and Bacillus thuringiensis
Interactions among Helicoverpa armigera (Hubner), its larval endoparasitoid Microplitis croceipes (Cresson), and Bacillus thuringiensis Berliner were evaluated under laboratory conditions. Prefeeding… Expand
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Oviposition and Isolation of Viable Eggs from Orius insidiosus in a Parafilm and Water Substrate: Comparison with Green Beans and Use in Enzyme-Linked Immunosorbent Assay
Abstract Plant parts are commonly used as oviposition substrates for mass rearing of Orius spp., but this system does not permit the isolation of clean intact eggs for use as standards in a yolk… Expand
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Development and encapsulation of the endoparasitoid,Microplitis croceipes (Hym.: Braconidae), in six candidate host species (Lep.)
Encapsulation and development of the endoparasitoid,Microplitis croceipes (Cresson), were studied in six atypical lepidopteran host species whose usual host isHelicoverpa zea (Boddie). The candidate… Expand
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Interaction of calyx fluid and venom from Microplitis croceipes (Braconidae) on developmental disruption of the natural host, Heliocoverpa zea, and two atypical hosts, Galleria mellonella and…
Polydnaviruses of many braconid and ichneumonid endoparasitoids play an important role in the successful parasitism of their hosts. The host's development is altered and its immune response is also… Expand
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PRESENTATION OF ARTIFICIAL DIET: EFFECTS OF COMPOSITION AND SIZE OF PREY AND DIET DOMES ON EGG PRODUCTION BY ORIUS INSIDIOSUS (HETEROPTERA: ANTHOCORIDAE)
Abstract The size of prey is critical to the feeding success of any given predator, but the effects of diet packet size have not been studied. We examined the effects of size of packets (Parafilm®… Expand
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Increased egg-laying in Orius insidiosus (Hemiptera: Anthocoridae) fed artificial diet supplemented with an embryonic cell line
Abstract The insidious flower bug, Orius insidiosus (Say) (Hemiptera: Anthocoridae), can be reared on an artificial diet absent of insect components, but yolk production is reduced and resultant… Expand
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Changes in haemolymph proteins of the fall armyworm, Spodoptera frugiperda (J. E. Smith), associated with parasitism by the braconid parasitoid Cotesia marginiventris (Cresson)
Abstract Changes in haemolymph proteins of the fall armyworm, Spodoptera frugiperda , associated with parasitism by the parasitoid Cotesia (= Apanteles) marginiventris were monitored by sodium… Expand
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Chitin synthesis in larval and pupal epidermis of the Indian meal moth, Plodia interpunctella (Hübner), and the greater wax moth, Galleria mellonella (L.)
The level of chitin synthesis was determined in whole last-instar larvae and in pupae of Plodia interpunctella, and in epidermal tissue from similar stages of Galleria mellonella. The incorporation… Expand
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Energy Transduction: Inhibition of Cockroach Feeding by Naphthoquinone
1,4-Naphthoquinones inhibit feeding of Periplaneta americana by complexing with sulfhydryl groups of receptor protein in sensory neurons, by oxidizing the sulfhydryl groups, and by being reduced.
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Conversion of the Sex Pheromone of the Cabbage Looper
THE mechanisms by which airborne molecules stimulate the olfactory receptors of insects remain largely undefined. In the Insecta, antennal sensilla contain pores which connect the external… Expand
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