|
|
|
| Registros recuperados: 585 | |
|
| |
|
| |
|
|
| Tironi,Paulo; von Treuenfels,Adrian; Parra,José Roberto Postali. |
| Cyrtomon luridus (Boh.), a native insect of wild Solanaceae, has adapted to the medicinal plant Duboisia sp., introduced from Australia, causing damages up to 100% mortality. Microctonus sp. is the most important natural enemy of C. luridus and its potential for biological control was investigated in this work. This study was carried out in Arapongas, Paraná State, Brazil, from 1994 to 1996. Parasitism of C. luridus by Microctonus sp. was highest from February through June (maximum of 54% in May 1996), when the C. luridus adult population was decreasing. The female sex ratio of Microctonus sp. under natural conditions was 0.57 to 0.69, which was close to 1 male : 2 female. Production of males occurs parthenogetically (arrhenotoky). In the laboratory,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Parasitism; Medicinal plant; Duboisia. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000500012 |
| |
|
| |
|
|
| Ghini,Raquel; Morandi,Marcelo Augusto Boechat. |
| Crop management may modify soil characteristics, and as a consequence, alter incidence of diseases caused by soilborne pathogens. This study evaluated the suppressiveness to R. solani in 59 soil samples from a microbasin. Soil sampling areas included undisturbed forest, pasture and fallow ground areas, annual crops, perennial crops, and ploughed soil. The soil samples were characterized according to abiotic variables (pH; electrical conductivity; organic matter content; N total; P; K; Ca; Mg; Al; H; S; Na; Fe; Mn; Cu; Zn; B; cation exchange capacity; sum of bases and base saturation) and biotic variables (total microbial activity evaluated by the CO2 evolution and fluorescein diacetate hydrolysis; culturable bacterial, fungal, actinomycetes, protozoa,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soilborne pathogen; Soil microorganisms; Biological control; Path analysis; Suppressive soil. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200007 |
| |
|
| |
|
|
| Molina Gayosso, Eduardo. |
| Los sistemas adaptativos complejos son abiertos, en el sentido de la termodinámica, y no son lineales, lo que significa que no son frecuentes las relaciones causa-efecto y que sus parámetros comúnmente cambian por lo que son impredecibles, por lo tanto, sus problemas no pueden ser resueltos como si se tratara de sistemas lineales. Sin embargo, es común el análisis lineal en las ciencias de la vida, lo que ha llevado, en el caso del control de enfermedades en las plantas, a controles lineales cuyas consecuencias son, por ejemplo, la anarquía biológica, el uso de resistencia vertical y la protección vegetal a través de químicos. El limitado éxito de las soluciones lineales en el control biológico de las enfermedades con origen en el suelo se debe,... |
|
Palavras-chave: Control biológico; Phytophthora capsici; Teoría de sistemas; CM-334; Teoría de la complejidad; Biological control; Systems theory; Complexity theory; Doctorado; Fitopatología. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/129 |
| |
|
|
| Molina Gayosso, Eduardo. |
| Los sistemas adaptativos complejos son abiertos, en el sentido de la termodinámica, y no son lineales, lo que significa que no son frecuentes las relaciones causa-efecto y que sus parámetros comúnmente cambian por lo que son impredecibles, por lo tanto, sus problemas no pueden ser resueltos como si se tratara de sistemas lineales. Sin embargo, es común el análisis lineal en las ciencias de la vida, lo que ha llevado, en el caso del control de enfermedades en las plantas, a controles lineales cuyas consecuencias son, por ejemplo, la anarquía biológica, el uso de resistencia vertical y la protección vegetal a través de químicos. El limitado éxito de las soluciones lineales en el control biológico de las enfermedades con origen en el suelo se debe,... |
|
Palavras-chave: Control biológico; Phytophthora capsici; Teoría de sistemas; CM-334; Teoría de la complejidad; Biological control; Systems theory; Complexity theory; Doctorado; Fitopatología. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/129 |
| |
|
|
| Nakashima, Yoshitaka; Uefune, Masayoshi; Tagashira, Eiko; Maeda, Seiko; Shima, Katsuya; Nagai, Kazuya; Hirose, Yoshimi; Takagi, Masami. |
| Cage trials of an anthocorid predator, Wollastoniella rotunda Yasunaga et Miyamoto, as a biological control agent of Thrips palmi Karny were conducted in Fukuoka, Japan, under winter greenhouse production conditions. Females of W. rotunda were released on caged eggplants, and placed in two greenhouses on 27 October. The development, population growth, and effectiveness of W. rotunda were observed until early March. Results from the cage trials showed that W. rotunda successfully developed, reproduced, and suppressed T. palmi populations under the conditions found in winter greenhouses. During the experiment, one full generation and a second generation of adult predators occurred. The T. palmi population which was exposed to predators remained at a low... |
|
Palavras-chave: Reproductive diapause; Photoperiod; Development; Winter; Wollastoniella rotunda; Orius; Biological control; Thrips palmi; Solanum melongena; Dicyphus tamaninii; Frankliniella occidentalis; Piocoris varius. |
| Ano: 2004 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/808 |
| |
|
| |
|
| |
|
| |
|
|
| Cagnolo,Susana R.; Almirón,Walter R.. |
| Entomopathogenic nematodes can be considered effective agents for biocontrol, resulting innocuous for humans. Larvaeof Culex apicinus Philippi were exposed to infective juveniles of Steinernema rarum (OLI strain) under laboratory conditions, testing six doses (1:1, 5:1, 10:1, 15:1, 100:1, 400:1). An increasing percentage of mosquito larvae mortality was recorded with an increased dose. The highest percentage of mosquito larvae mortality (75%) was obtained with the dose 400:1. This is the first report of parasitism of an isolated of S. rarum from Córdoba against larvae of C. apicinus, with promising results. Therefore, further studies must be carried out to determine if these nematodes would be effective as autochthonous agents for the control of Culex... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Culex apicinus; Steinernema rarum (OLI strain); Biological control. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802010000100016 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Costa,M.A.; Tavares,W.S.; Pereira,A.I.A.; Cruz,I.; Serrão,J.E.; Zanuncio,J.C.. |
| Chrysoperla externa (Neuroptera: Chrysopidae) larvae can avoid foraging on plants of Crotalaria juncea (Fabaceae) after the issuance of floral buds, when the prey of Utetheisa ornatrix (Lepidoptera: Arctiidae) incorporate toxic pyrrolizidine alkaloids from this plant. This reduces the predation and favors increasing the number of adults and eggs of this defoliator on crops of this plant. The aim of the present paper was to evaluate some biological and ecological aspects of C. externa and U. ornatrix on the organic crop of C. juncea in the EMBRAPA Maize and Sorghum in Sete Lagoas, Minas Gerais State, Brazil. Chrysoperla externa and U. ornatrix were more abundant in the vegetative and flowering stages of C. juncea, respectively, with caterpillars of this... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Crotalaria month; Green lacewing; Green manure; Integrated Pest Management. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000300001 |
| |
|
| |
|
|
| Fernandes,Maria Herlândia de Araújo; Oliveira,José Eudes de Morais; Costa,Valmir Antônio; Menezes,Karen Oliveira de. |
| ABSTRACT: From those of the mealybug family, the citrus mealybug, Planococcus citriRisso, 1813 (Hemiptera: Pseudococcidae) is frequently held responsible for various diseases occurring in vineyards. This is a first time report in Brazil, on the occurrence of a parasitoid controlling P. citri. In our search for the natural enemies of P. citri, bunches of grapes with the vine were collected every week for one month, in those regions where table grapes were produced, like Petrolina, Pernambuco, Brazil. In these samples, among the natural pest infestations Coccidoxenoides perminutusGirault, 1915 (Hymenoptera: Encyrtidae) was the only natural enemy species reported. In this research, we attempted to study the potential of parasitism as well as the strategies... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Citrus mealybug; Biological control; Parasitoid. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701130 |
| |
| Registros recuperados: 585 | |
|
|
|
