Thesis (M. Environmental Science)--North-West University, Potchefstroom Campus, 2008.

The connection between variable synchrony of insect eclosion with host budburst and variability in insect densities was investigated. Experiments with gypsy moth (Lymantria dispar L.) larvae determined the duration of acceptable foliage after budbreak of nine hardwood species. Four competing conceptual models of environmental influences on the timing of budburst were compared and evaluated. The best budburst model was combined with an eclosion model to estimate the frequency of asynchrony and its correlation with density. Synchrony with budburst has a smaller effect than weather after hatch, on the population size of the gypsy moth, but neither is the driving force behind density changes. However, comparison of traits of 300 species of Macrolepidoptera showed that 50% of outbreak species, but only 24% of nonoutbreak species begin feeding at the time of budburst; this suggests a stronger relation between synchrony and population dynamics than was found with the gypsy moth.

Bibliography: leaves 137-167 / viii, 189 leaves, [31] leaves of plates : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Entomology, Waite Agricultural Research Institute, 1986

Includes bibliography / v, 133, [ca. 200] leaves, [4] leaves of plates : ill. (some col.) ; 31 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Entomology, 1986

Diss. (sammanfattning) Alnarp : Sveriges lantbruksuniversitet, 2004. / Härtill 5 uppsatser.

Diss. (sammanfattning). Alnarp : Sveriges lantbruksuniversitet, 2005. / Härtill 7 uppsatser.

Some ill. mounted. Bibliography: leaves 86-92.

No description available.

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No. of bitstreams: 1 TeseMG.pdf: 10653928 bytes, checksum: c96fdb4c007cd69e404ce32a399ea97c (MD5) Previous issue date: 2017-06-07 / Não recebi financiamento / Larvae of Geometridae (Lepidoptera) were obtained with an entomological umbrella, from October 2013 to September 2015, in two areas of semi-deciduous forest (Mata/Cerradão and Mata) at Estação Ecológica de Jataí, Luiz Antônio, São Paulo state. The larvae of Geometridae were kept in the laboratory until the adult or parasitoid emergence. Especimens of the families Braconidae and Ichneumonidae were obtained, from January 2014 to February 2015, with two Malaise traps located in the same local of collection of Geometridae larvae. The material obtained in the Malaise traps was sorted, the individuals of the families Braconidae and Ichneumonidae were identified in subfamily level and the Microgastrinae, Cheloninae and Rogadinae, Campopleginae and Mesochorinae subfamilies were identified at the genus level. A total of 416 larvae of Geometridae weas collected, 190 in the Mata/Cerradão stretch and 226 in the Mata stretch, of which, 52 and 39, respectively, were parasitized. Among the Geometridae, the subfamily Ennominae was represented by individuals of 14 genera (Argyrotome, Glena, Hymenomima, Iridopsis, Ischnopteris, Lomographa, Macaria, Nepheloleuca, Patalene, Phrygionis, Physocleora, Prochoerodes, Rhomboptila and Trotopera), the subfamily Larentiinae by four (Eubaphe, Eupithecia, Euphyia and Pterocypha) and the subfamily Sterrhinae by two (Cyclophora and Idaea). A total of 91 larvae of Geometridae, from 11 genera, were obtained parasitized by 198 parasitoids. The parasitoids obtained belong to the families Braconidae, Ichneumonidae, Eulophidae and Diptera. The Malaise traps provided 2720 individuals of the Ichneumonoidea superfamily, of these 1210 are Braconidae and 1510 are Ichneumonidae, in the Mata/Cerradão stretch, and 702 in the Mata stretch, of which 214 individuals of the Braconidae family and 488 individuals of the Ichneumonidae family. Among the Braconidae, the subfamily Microgastrinae was the most abundant, with 44.5% of individuals in the Mata/Cerradão stretch and 31.8% in the Mata stretch. Eighteen genera of Microgastrinae were recorded (Alphomelon, Apanteles, Choeras, Cotesia, Diolcogaster, Distatrix, Glyptapanteles, Hypomicrogaster, Iconella, Microplitis, Papanteles, Parapanteles, Pholetesor, Prasmodon, Promicrogaster, Protapanteles, Pseudapanteles and Rasivalva), five of Rogadinae (Aleiodes, Choreborogas, Rogas, Stiropius and Yelicones) and four of Cheloninae (Ascogaster, Chelonus, Microchelonus and Phanerotoma). Between the Ichneumonidae collected, 161 individuals were obtained from the subfamily Campopleginae in the Mata/Cerradão stretch and 35 in the Mata stretch. The genera of Campopleginae obtained were Campoletis, Campoplex, Casinaria, Charops, Cryptophion, Cymodusa, Diadegma, Dusona, Hyposoter, Microcharops and Venturia. / Larvas de Geometridae (Lepidoptera) foram obtidas por meio de guarda-chuva entomólogico, no período de outubro de 2013 a setembro de 2015, em duas áreas de mata estacional semidecídua (transecto Mata/Cerradão e transecto Mata) na Estação Ecológica de Jataí, Luiz Antônio, São Paulo. As larvas de Geometridae foram mantidas em laboratório até a emergência do adulto ou do parasitoide. Exemplares das famílias Braconidae e Ichneumonidae foram obtidos, no período de janeiro de 2014 a fevereiro de 2015, por meio de duas armadilhas Malaise localizadas nos mesmos transectos de coleta das larvas de Geometridae. O material obtido nas armadilhas Malaise foi triado, os indivíduos das famílias Braconidae e Ichneumonidae foram identificados em nível de subfamília e as subfamílias Microgastrinae, Cheloninae e Rogadinae, Campopleginae e Mesochorinae foram identificados em nível de gênero. Foram coletadas 416 larvas de Geometridae, 190 no transecto Mata/Cerradão e 226 no transecto Mata, das quais, 52 e 39, respectivamente, estavam parasitadas. Entre os Geometridae, a subfamília Ennominae foi representada por indivíduos de 15 gêneros (Argyrotome, Cimicodes, Glena, Hymenomima, Iridopsis, Ischnopteris, Lomographa, Macaria, Nepheloleuca, Patalene, Phrygionis, Physocleora, Prochoerodes, Rhomboptila e Trotopera), a subfamília Larentiinae por quatro (Eubaphe, Eupithecia, Euphyia e Pterocypha) e a subfamília Sterrhinae por dois (Cyclophora e Idaea). Foram obtidas 91 larvas de Geometridae, de 11 gêneros, parasitadas por 198 parasitoides. Os parasitoides obtidos pertencem às famílias Braconidae, Ichneumonidae, Eulophidae e Diptera. As armadilhas Malaise forneceram 2720 indivíduos da superfamília Ichneumonoidea, destes 1210 Braconidae e 1510 Ichneumonidae, no transecto Mata/Cerradão e 702 no transecto Mata, dos quais 214 indivíduos da família Braconidae e 488 indivíduos da família Ichneumonidae. Entre os Braconidae, a subfamília Microgastrinae foi a mais abundante, com 44,5% de indivíduos no transecto Mata/Cerradão e 31,8% no transecto Mata. Foram registrados 18 gêneros de Microgastrinae (Alphomelon, Apanteles, Choeras, Cotesia, Diolcogaster, Distatrix, Glyptapanteles, Hypomicrogaster, Iconella, Microplitis, Papanteles, Parapanteles, Pholetesor, Prasmodon, Promicrogaster, Protapanteles, Pseudapanteles e Rasivalva), cinco de Rogadinae (Aleiodes, Choreborogas, Rogas, Stiropius e Yelicones) e quatro de Cheloninae (Ascogaster, Chelonus, Microchelonus e Phanerotoma). Entre os Ichneumonidae coletados, foram obtidos 161 indivíduos da subfamília Campopleginae no transecto Mata/Cerradão e 35 no transecto Mata. Os gêneros de Campopleginae obtidos foram Campoletis, Campoplex, Casinaria, Charops, Cryptophion, Cymodusa, Diadegma, Dusona, Hyposoter, Microcharops e Venturia.

Orientador: Antonio Carlos Busoli / Banca: Marcos Gino Fernandes / Banca: Arlindo Leal Boiça Júnior / Resumo: O conhecimento do comportamento de uma praga é fundamental para o entendimento da intensidade de seus danos. O objetivou deste trabalho foi estudar o comportamento de alimentação e produção de danos por Anthonomus grandis em cinco cultivares de algodoeiro, avaliando as épocas de maior e menor preferência alimentar e de oviposição de A. grandis, a distribuição vertical no dossel das plantas de botões florais com orifícios de alimentação e oviposição, a preferência alimentar por botões florais de diferentes idades e o respectivo tempo de abscisão. Utilizou-se o delineamento em blocos ao acaso em esquema de parcelas subdivididas com oito repetições. Semanalmente foram avaliadas 5 plantas/parcela. Para o estudo da preferência alimentar por botões florais de diferentes idades e o tempo para sua abscisão, utilizou-se 20 botões florais ao acaso por cultivar, avaliados acompanhados diariamente. NuOPAL, DeltaOPAL e FMX-910 foram utilizadas para alimentação em todo período de florescimento e frutificação das plantas e FMT-701 e FMX-993 apenas no início e no final deste período. DeltaOPAL, FMX-910 e FMX-993 foram utilizadas para oviposição em todo período de florescimento e frutificação das plantas e NuOPAL e FMT-701, apenas no início e no final deste período. Botões florais do terço superior foram mais preferidos para oviposição e botões florais dos terços médio e superior para alimentação. A preferência alimentar foi maior sobre botões florais com 2 dias em NuOPAL e FMX-910 e com 7 dias em DeltaOPAL, FMT-710 e FMX-993. Nas 5 cultivares o tempo para abscisão dos botões florais foi 1 a 2 dias após a primeira punctura de alimentação / Abstract: The knowledge of a pest behavior is essential for the damage intensity understanding. The objective was to study the feeding behaviour and damage output by Anthonomus grandis in five cotton cultivars. It was evaluated the period of A. grandis major and minor feeding and oviposition preference, the within-plant distribution of flower buds with feeding and oviposition punctures on the plant canopy, the feeding preference for squares at different ages and also the square abscission time after the first feeding puncture. It was used a randomized block design in a split plot design with eight repetitions. Evaluations were performed weekly on five plants per plot. For feeding preference for squares at different ages and the time for its abscission after the first feeding puncture study, were observed in 20 plants/cultivar 20 randomly squares, which were monitored daily. NuOPAL, DeltaOPAL, and FMX-910 were used for feeding throughout the flowering and fruiting period, and FMT-701 and FMX-993 only at the beginning and end of this period. DeltaOPAL, FMX-910, and FMX-993 were used for oviposition throughout the flowering and fruiting period, and NuOPAL and FMT-701 only at the beginning and end of this period. It was observed a feeding preference for flower buds on the medium ans upper parts of the plants and oviposition preference for flower buds on the upper part of the plants for all five cultivars. The boll weevil feeding preference was on squares with two days on NuOPAL and FMX-910 and seven days on DeltaOPAL, FMT-701, and FMX-993. The square abscission time was 1 to 2 days after the first feeding puncture in all cultivars / Mestre