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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 47 for “"Lepidoptera Noctuidae"”.
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Viruses of Heliothis armigera (Hübner) (Lepidoptera : Noctuidae)
Heliothis armigera (the bollworm) is a pest of agricultural importance in Southern Africa. It is often simultaneously infected with several insect viruses: nuclear polyhedrosis virus (NPV), granulosis virus (GV), and cytoplasmic polyhedrosis virus (CPV). Both NPV and GV have been previously studied …
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Bionomia e etologia do Mocis latipes (Guenee, 1852) (Lepidoptera-Noctuidae)
Data are given on the post-embryonic development under experimental conditions, of Mocis latipes (Guenée, 1852) ,a highly polyphagous species, with marked preference for Gramineas. Data are also given on its ethology.
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Host Plant Selection Behavior of Autographa Precationis (Guenee) (Lepidoptera: Noctuidae)
Made available in DSpace on 2014-12-11T18:05:45Z (GMT). No. of bitstreams: 1 7412063.pdf: 8334689 bytes, checksum: 9a311caa947e97be29d9abe2bb586beb (MD5) Previous issue date: 1973
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Evaluating the Economic Threshold for Helicoverpa zea (Lepidoptera: Noctuidae) in Determinate and Indeterminate Soybeans.
North Carolina State University Theses Entomology.
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The Allatoregulatory Neuropeptides and their Genes in the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae)
The genes encoding the S. frugiperda allatotropin (Spofr-AT), allatostatin (Spofr-AST), allatostatin type-A (Spofr-AST A) peptide family and allatotropin 2 (Spofr-AT 2) peptides were isolated from S. frugiperda brain cDNA. The Spofr-AT gene is expressed in three mRNA isoforms with 134, 171, and 200 …
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Multiplicação de Spodoptera frugiperda multiple nucleopolyhedrovirus (SfMNPV) em lagartas de Spodoptera frugiperda (Lepidoptera: Noctuidae)
… para o controle de Spodoptera frugiperda (Lepidoptera: Noctuidae), porém seu uso em larga escala depende de se maximizar sua produção a partir de larvas infectadas. A temperatura adequada, o tempo de exposição ao patógeno, a idade na qual as lagartas são inoculadas com o vírus, a …
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Sobrevivência, comportamento locomotor, respiração, alimentação e histologia de Spodoptera frugiperda (Lepidoptera: Noctuidae) mediados pela deltametrina
Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), praga agrícola polífaga, é controlada, principalmente, com inseticidas piretróides. A toxicidade, sobrevivência, respiração, comportamento locomotor, alimentação e histotologia do intestino médio de S. frugiperda exposta à deltametrina …
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Biologia de Spodoptera frugiperda (J. E. Smith) (Lepidoptera: noctuidae) em genótipos de milho doce e comum
Spodoptera frugiperda, uma das principais pragas do milho, tem grande importância pelos danos e dificuldades de controle. A ausência de informações sobre seu impacto em milho doce motivou a comparação de sua biologia entre os genótipos ELISA, BR 400 (milho doce) e BR PAMPA (milho comum). Parcelas …
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Influence of flight activity and octopamine on hemolymph trehalose titers in Heliothis zea (Boddie) (Lepidoptera: Noctuidae)
Hemolymph trehalose concentrations of male and female Heliothis zea were quantitated by high performance thin-layer chromatography (HPTLC) at various ages and times of the day and related to flight activity. Effects of octopamine injection or stress on trehalose levels were also quantified. Flight …
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Rearing density effects on premigrant traits of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)
Laboratory and field studies of the fall armyworm, <i>Spodoptera frugiperda</i>, were undertaken to determine if a high larval rearing density produces premigrant traits, and if these traits can be used as criteria for separating nonpremigrant from premigrant groups. An increase in larval rearing …
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The olfactory basis for attraction of the Bollworm helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) to host-plant flowers
… attractive to Earias spp. and other Lepidoptera although very few H. armigera were caught due to low population density. Olfactory cues are discussed in relation to host-plant finding behaviour of H. armigera. They are involved in early stages of host seeking behaviour prior to …
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RNA interference with allatoregulating neuropeptide genes affecting circadian rhythm, development, mating and reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae)
… but also act as a true gonadotropin in the Lepidoptera. JHs are released by the corpora allata (CA) into the hemolymph, which are under allatotropic and allatostatic neuropeptide control as well as under somatic and environmental stimulus. Two types of allatostatins (Spofr-AS type Manse-AS …
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Transcriptional effects of predator cues in the brain of Spodoptera frugiperda (lepidoptera: noctuidae) moths exposed to bat ultrasound
… reported. Within several moth families, such as Noctuidae, tympanic organs for recognizing ultrasonic bat calls have evolved and facilitate the avoidance of predation via eliciting flight cessation or aerial maneuvers when stimulated by ultrasound. In this study, I exposed adult male fall …
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Impact of host plants on the efficacy of nucleopolyhedrovirus as a biopesticide against insect pest Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)
… against Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae). Field trials were also conducted with different low cost additives mixed with HearNPV on chickpea crop and these increased the efficacy and persistence of HearNPV under field conditions. This study may therefore help to …
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Importance of floral scent compounds for the interaction between Silene latifolia (Caryophyllaceae) and the nursery pollinator Hadena bicruris (Lepidoptera: Noctuidae)
… these compounds are known to attract nocturnal Lepidoptera species. To characterise antennal and behavioural responses of H. bicruris to various floral scent chemotypes of S. latifolia, and to S. vulgaris (which is rarely also used as host plant), different S. latifolia extracts, and a S. …
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Proteasas digestivas de tipo tripsina del taladro del maíz, "Sesamia nonagrioides" (Lepidoptera, Noctuidae), caracterización e interacción con la proteína insecticida Cry1Ab
… es el taladro del maíz, Sesamia nonagrioides (Lepidoptera, Noctuidae). El maíz transgénico resistente a taladros que expresa un fragmento de la proteína insecticida Cry1Ab de la bacteria Bacillus Thuringiensis (Bt), comercializado en España desde 1998, ofrece una alternativa al uso de …
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