?rea de concentra??o: Silvicultura e manejo florestal. / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-08-09T23:04:22Z No. of bitstreams: 2 daniel_junior_martins.pdf: 1407857 bytes, checksum: 35837ffe0a3033cb340c421e657b405d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-08-14T16:36:33Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) daniel_junior_martins.pdf: 1407857 bytes, checksum: 35837ffe0a3033cb340c421e657b405d (MD5) / Made available in DSpace on 2017-08-14T16:36:33Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) daniel_junior_martins.pdf: 1407857 bytes, checksum: 35837ffe0a3033cb340c421e657b405d (MD5) Previous issue date: 2016 / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / A incid?ncia de lepid?pteros desfolhadores ? um dos fatores ambientais que podem regular a produtividade dos maci?os florestais. O parasitoide Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) se destaca pela efici?ncia no parasitismo de pupas desses lepid?pteros e auxiliam na manuten??o do equil?brio biol?gico. Esses podem ser criado em diferentes hospedeiros alternativos. Com isso, uma pesquisa foi conduzida no laborat?rio de Controle Biol?gico de Insetos do Departamento de Engenharia Florestal da Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) em Diamantina, Minas Gerais. Objetivou-se neste trabalho, avaliar a efici?ncia de diferentes hospedeiros para a cria??o de Palmistichus elaeisis e estudar desempenho deste parasitoide em pupas de Tenebrio molitor criado em diferentes dietas. O delineamento experimental foi inteiramente casualizado (DIC), em sala climatizada temperatura variando ente 23 e 27?C, umidade relativa entre 60 e 80% e fotoper?odo de 12 horas. O primeiro estudo ensaio constituiu-se seis tratamentos e nove repeti??es. Pupas de Tenebrio molitor, Alphitobius diaperinus, Thyrinteina arnobia, Spodoptera frugiperda, Helicoverpa zea e Diatraea saccharalis foram individualizadas em potes pl?sticos e expostas ao parasitismo por seis f?meas durante 72h. Foi observado a porcentagem de parasitismo e emerg?ncia, n?mero de indiv?duos emergidos, raz?o sexual, longevidade e morfometria de P. elaeisis. Os dados foram submetidos a ANOVA e quando significativos as m?dias foram comparadas pelo teste de Tukey (p?0,05), ou teste kruskal Wallis (p?0,05) quando n?o-param?trico. A porcentagem de parasitismo variou de 88,8 a 100%. O n?mero da prole e tamanho do parasitoide foi influenciado pela biomassa do hospedeiro. A raz?o sexual variou de 0,76?0,04 a 0,94?0,01, e os maiores ciclos de desenvolvimento do parasitoide produziram prole mais longeva. Pupas de A. diaperinus n?o permitiram um bom desempenho de P. elaeisis na densidade testada. O segundo ensaio constituiu-se seis tratamentos e 10 repeti??es. Pupas de T. molitor geradas em seis dietas (farelo de trigo, fub? de milho, ra??o peletizada para coelhos, ra??o para aves poedeiras: farelada, peletizada e triturada) foram individualizadas em potes pl?sticos e expostas ao parasitismo por seis f?meas de P. elaeisis durante 72h. Foram observados os mesmos par?metros do primeiro estudo para o parasitoide. Al?m disso, foi realizada uma an?lise bromatol?gica das pupas de T. molitor e das dietas. A porcentagem de parasitismo e emerg?ncia foi de 100% em todos os tratamentos. N?o houve diferen?a no ciclo de vida, n?mero da prole e longevidade do parasitoide. Pupas alimentadas com fub? de milho geraram prole com menor raz?o sexual e menor comprimento da t?bia. A dieta a base de fub? de milho n?o foi adequada para o desenvolvimento de P. elaeisis. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / The incidence of defoliating lepidoptera is one of the factors that can regulate the production of forest stands. The parasitoid Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) stands out for the efficiency in the parasitism of pupae of these lepidoptera and helps in maintaining the biological balance. These can be created in different alternative hosts. With this, a research was developed in the laboratory of Biological Control of Insects of the Department of Forestry Department of the Federal University of the Jequitinhonha and Mucuri Valleys in Diamantina, Minas Gerais. The objective of this work was to evaluate the efficiency of different hosts for the creation of Palmistichus elaeisis and to study the performance of this parasitoid in pupae of Tenebrio molitor grown on different diets. The experimental design was completely randomized (CRD), in a heated room with temperature ranging from 23and 27?C, relative humidity between 60 and 80 % and photoperiod of 12 hours. The first assay consisted if six treatments and nine replications. Pupae of Tenebrio molitor, Alphitobius diaperinus Thyrinteina arnobia, Spodoptera frugiperda, Helicoverpa zea e Diatraea saccharalis they were individually placed in plastic pots and exposed to parasitism by six females during 72h. It was observed percentage of parasitism and emergence, number of emerged individuals, sexual ratio, longevity and morphometry P. elaeisis. Data were analyzed by ANOVA and when significant means were compared by Tukey test (p?0,05) or Kruskal Wallis test (p?0,05) when nonparametric. The percentage of parasitism ranged from 88,8 to 100 %. The number of offspring and parasitoid size was influenced by the biomass of the host, the sex ratio varied from 0,76?0,04 a 0,94?0,01, and the more parasitoid development cycles produced more offspring longeva. Pupae of A. diaperinus did not allow a good performance P. elaeisis tested in density. The second assay consisted if six treatments and 10 repetitions. Pupae of T. molitor generated in six different diets (wheat bran, cornmeal, pelleted feed for rabbits, for laying birds: farewell pelleted and crushed) they were individually placed in plastic pots and exposed to parasitism by six females during 72h. Were observed the same parameters of the first study for parasitoid furthermore, we carried out a bromatological analysis of T. molitor pupae and diets. The percentage of parasitism and emergency was 100 % in both treatments there was no difference the life cycle of the offspring number and longevity of the parasitoid. Pupae formed with corn meal generated offspring less sex reason and shorter length of the tibia. A diet based on corn meal was not suitable for development P. elaeisis.