Controle biológico de thaumastocoris peregrinus (Hemiptera: thaumastocoridae) com fungos entomopatogênicos

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Yellow fever: reemerging in the state of Sao Paulo, Brazil, 2009

OBJECTIVE: To describe the investigation of a sylvatic yellow fever outbreak in the state of Sao Paulo and the main control measures undertaken.METHODS: This is a descriptive study of a sylvatic yellow fever outbreak in the Southwestern region of the state from February to April 2009. Suspected and confirmed cases in humans and in non-human primates were evaluated. Entomological investigation in sylvatic environment involved capture at ground level and in the tree canopy to identify species and detect natural infections. Control measures were performed in urban areas to control Aedes aegypti. Vaccination was directed at residents living in areas with confirmed viral circulation and also at nearby cities according to national recommendation.RESULTS: Twenty-eight human cases were confirmed (39.3% case fatality rate) in rural areas of Sarutaia, Piraju, Tejupa, Avare, and Buri. The deaths of 56 non-human primates were also reported, 91.4% were Allouatta sp. Epizootics was confirmed in two non-human primates in the cities of Itapetininga and Buri. A total of 1,782 mosquitoes were collected, including Haemagogus leucocelaenus, Hg. janthinomys/capricornii, and Sabethes chloropterus, Sa. purpureus and Sa. undosus. Yellow fever virus was isolated from a group of Hg. Leucocelaenus from Buri. Vaccination was carried out in 49 cities, with a total of 1,018,705 doses. Nine serious post-vaccination adverse events were reported.CONCLUSIONS: The cases occurred between February and April 2009 in areas with no recorded yellow fever virus circulation in over 60 years. The outbreak region occurred outside the original recommended vaccination area with a high percentage of susceptible population. The fast adoption of control measures interrupted the human transmission within a month and the confirmation of viral circulation in humans, monkeys and mosquitoes. The results allowed the identification of new areas of viral circulation but further studies are required to clarify the dynamics of the spread of this disease.

Releasing number of Telenomus remus (Nixon) (Hymenoptera: Platygastridae) against Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in corn, cotton and soybean

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Behavior of Montandoniola confusa Streito & Matocq (Hemiptera: Anthocoridae) preying upon gall-forming thrips Gynaikothrips ficorum Marchal (Thysanoptera: Phlaeothripidae)

The gall-forming thrips Gynaikothrips ficorum Marchal (Thysanoptera: Phlaeothripidae) is recorded in all regions where its host plant, Ficus microcarpa (Marchal) (Moraceae), has been cultivated as an urban and interior landscape plant species, including potted plants and bonsai. Similarly, the thrips predator Montandoniola confusa Streito & Matocq (Hemiptera: Anthocoridae) has generally followed the prey distribution. The gall induced by thrips degrades the plant foliage, and the thrips themselves can be annoying for people both outdoors and indoors. The galls, however, create a microcosm with all developmental stages of the thrips and its predator. In this study we present the first records of M. confusa in South America, document the species' widespread concomitant occurrence across Brazil, and report our studies of three aspects of M. confusa predation upon the eggs, larvae/prepupae, and adults of G. ficorum thrips: (i) functional response of the predator adult female as a function of different densities of thrips eggs, larvae/prepupae and adults separately: (ii) predation on eggs by adult M. confusa with adult thrips present in the gall; and (iii) adult M. confusa prey preferences when all thrips stages occurred simultaneously in the gall. For all three thrips life stages tested, the predator exhibited a type II functional response. Despite the availability of different life stages in the gall, M. confusa adults are capable of preying upon all life stages of G. ficorum, predation was preferentially on thrips eggs, with an estimated similar to 10-fold greater predation on eggs compared to larvae/prepupae and adult thrips. Egg predation was unaffected by the presence of defensive adult thrips in the gall under low densities (<30 eggs/gall) but when egg densities were greater than 30 eggs/gall, it was reduced when adult thrips were present. However, the relative number of thrips adults per gall did not statistically change the outcome. (C) 2013 Elsevier Inc. All rights reserved.

Description of a new species of Neoparaphytoseius Chant and McMurtry (Acari: Mesostigmata: Phytoseiidae) from Peru, with a redefinition of the genus

Neoparaphytoseius charapa n. sp. is described, based on the morphology of adult females and males collected on Inga edulis ( Mart.) ( Fabaceae) in northeastern Peru. Neoparaphytoseius Chant & McMurtry is redefined on the basis of the new species and re-examination of its type species N. sooretamus Chant & McMurtry.

The role of native vegetation on infection rates of Calacarus heveae (Acari: Eriophyidae) by Hirsutella thompsonii (Ascomycota: Ophiocordycipitaceae)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Effects of insecticides used in corn on immature stages of trichogramma atopovirilia (hymenoptera: trichogrammatidae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Preferência alimentar e eficiência da carpa capim (Ctenopharyngodon idella) no controle de macrófitas aquáticas em mesocosmos

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Seletividade de inseticidas utilizados na cultura algodoeira a ovos e larvas de terceiro instar de Cycloneda sanguinea

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Potencial predatório de Carabidae e Staphylinidae (Coleoptera) sobre a lagarta-da-soja

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeitos associados de genótipos de eucalipto sobre Thyrinteina arnobia (Stoll) (Lepidoptera: Geometridae) e no predador Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae)

Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

Formulation of Pseudomonas chlororaphis strains for improved shelf life

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

DYNAMICS AND PREDATION EFFICIENCY OF CHRYSOPERLA EXTERNA (NEUROPTERA: CHRYSOPIDAE) ON ENNEOTHRIPS FLAVENS (THYSANOPTERA: THRIPIDAE)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Papel de Syncephalastrum racemosum como antagonista do fungo cultivado pelas formigas cortadeiras

Currently, the major method for controlling leaf-cutting ants uses toxic baits containing the insecticide sulfluramide. Such compound presents harmful effects to the environment and to human health, which drive the community’s concerns towards new strategies for controlling these insects. Previous studies showed the occurrence of Syncephalastrum racemosum in nests of the leaf-cutting ants submitted to treatments using insecticides. In order to understand the role of S. racemosum in nests of leaf-cutting ants, the present work investigated the antagonism of S. racemosum towards the leaf-cutting ant-cultivar (Leucoagaricus gongylophorus). Using in vitro essays, we co-cultivated L. gongylophorus and S. racemosum (n= 6 lineages). For comparison, we also used the same setup to test one strain of Escovopsis weberi, since this fungus is considered a specialized parasite of the leaf-cutting ant cultivar. All S. racemosum strains inhibited the growth of L. gongylophorus (ANOVA 2 way, F= 23,61, P< 0,01). The same was observed for E. weberi. There were no significant difference between S. racemosum and E. weberi inhibition (Bonferroni test, P> 0,05). In addition, we verified that all S. racemosum strains colonized and sporulated over the fungus garden up to 96 h after garden fragments without workers were inoculated with spores suspensions. Similar results were observed on gardens that were inoculated with spores of E. weberi. The results indicate that S. racemosum act as antagonist of the leaf-cutting ant cultivar. The putative possibility for using S. racemosum as biological control agent of leaf-cutting ants is discussed in the present work

A dengue como ferramenta de interdisciplinaridade e popularização científica entre estudantes de ensino fundamental

The majority of the population knows their role in dengue control, preventing the accumulation of water in containers as potential breeding sites of Aedes aegypti, the main vector of dengue. Also known chemical control, widely used by the institutions responsible for the control of endemic diseases. On the other hand, unaware that an alternative measure such biological control through a microbial biopesticide, safe, harmless to health and the environment, can be adopted. Thus, this work reported for elementary school students, simply and clearly, the biological control of mosquitoes through bacterial biopesticide produced locally. Moreover, promoted the interdisciplinary teaching of science and mathematics through the data tabulation and charting on interviews conducted by students, about the level of knowledge of the population about dengue and other related variables.