Environmentally Safe Photodynamic Control of Using Sunlight-Activated Synthetic Curcumin: Photodegradation, Aquatic Ecotoxicity, and Field Trial.

This study reports curcumin as an efficient photolarvicide against larvae under natural light illumination. Larval mortality and pupal formation were monitored daily for 21 days under simulated field conditions. In a sucrose-containing formulation, a lethal time 50 (LT50) of 3 days was found using curcumin at 4.

Prevalence of Eimeria spp. in Broilers by Multiplex PCR in the Southern Region of Brazil on Two Hundred and Fifty Farms.

Parasitic infections caused by Eimeria species are responsible for most economic losses in poultry production. Prevalence studies can adequately assist the design of prophylaxis strategies for disease control. Therefore, stool samples from 251 flocks of broilers from 28 to 48 days old were collected in 21 municipalities in the state of Santa Catarina, Brazil, to detect and examine the prevalence of Eimeria acervulina, Eimeria maxima, Eimeria tenella, Eimeria mitis, Eimeria praecox, Eimeria necatrix, and Eimeria brunetti.

Effects of proteinase inhibitor from Adenanthera pavonina seeds on short- and long term larval development of Aedes aegypti.

Currently, one of the major global public health concerns is related to the transmission of dengue/yellow fever virus by the vector Aedes aegypti. The most abundant digestive enzymes in Ae. aegypti midgut larvae are trypsin and chymotrypsin.

Neospora spp. antibodies in horses from two geographical regions of the state of Santa Catarina, Brazil.

The aims of this study were to determine occurrences of Neospora spp. IgG antibodies in horses from two geographical regions of the state of Santa Catarina, southern Brazil, and identify risk factors for infection. Analyses were performed on 615 samples using the immunofluorescent antibody test (IFAT ≥ 1:50).

Toxoplasma gondii antibodies sheep in Lages, Santa Catarina, Brazil, and comparison using IFA and ELISA.

Toxoplasmosis in sheep is a disease of great importance in veterinary medicine, which causes economic losses in livestock and has a great impact on human health, since consumption of infected meat facilitates transmission of zoonotic infections. Blood samples from sheep (n = 360) were collected from 13 farm properties in the municipality of Lages, Santa Catarina, to estimate the prevalence of toxoplasmosis and identify risk factors associated with Toxoplasma gondii infection. T.

[Occurrence of antibodies and risk factors for infection for Toxoplasma gondii in dogs in the cities of Lages and Balneário Camboriú, Santa Catarina State, Brazil].

The aim of this study was to identify the occurrence of antibodies and risk factors for infection for Toxoplasma gondii in dogs in the cities of Lages and Balneário Camboriú, Santa Catarina State, Brazil. Blood samples from 400 domiciliated dogs were processed for antibody detection against T. gondii by indirect immunofuorescence antibody test (IFAT).

[Oviposition behavior of the silverleaf whitefly Bemisia tabaci biotype B on tomato].

The objective of this work was to evaluate the influence of the leaf surface, the insect geotropic behavior and the type of foliar trichome on Bemisia tabaci (Genn.) biotype B oviposition on tomato leaves. Bemisia tabaci females were confined in acrylic boxes in which tomato leaflets were fixed at the bottom and top part of the boxes to allow insects to access the leaf surface to be tested (adaxial and/or abaxial) in both no-choice and free choice tests.

[Proposal of an acaricide laboratory test larvae immersion of Rhipicephalus (Boophilus) microplus: evaluation with cypermethrin and amitraz].

The aim of this work was to develop a technique of acaricides evaluation by immersion of larvae. Larvae were obtained from 30 engorged females of Riphicephalus (Boophilus) microplus were collected in a ranch in Lages, Santa Catarina state, Brazil. Larvae were obtained from 10mg of eggs placed into 5ml disposable syringes, previously prepared and kept under controlled conditions of laboratory, and collected between the third and the twelfth day of oviposition.

[Coenurosis in a sheep in Santa Catarina State, Brazil].

Coenurus cerebralis infection is commonly occurring parasite in small ruminants worldwide. A ewe showed head inclination to the left, equilibrium loss, impetuous movement to the high, falling in left lateral recumbency and recovering movement later. Seven days later, the animal remained in permanent lateral recumbency and nystagmus.

[Amblyomma tigrinum in the Municipality of Lages, SC, and biology observations under laboratory conditions].

To study the biological features of Amblyomma tigrinum, samples of engorged females collected from dogs in the city of Lages, SC, Brazil, were maintained in Petri dishes into an incubator at 27+/-1 degrees C and 80+/-10% RH, for egg laying. For the development of the subsequent experimental phases, artificial infestations were performed in rabbits using the technique of the cotton bag glued to the ear's base. The mean period of hatch, feeding and larval molt were 11.

[Larvae culture of ovine gastrintestinal nematodes in sawdust substrates of Pinus taeda, P. elliottii and Araucaria angustifolia].

The aim of this study was to verify the influence of sawdust substrates obtained from wood treated with sodium tribromophenate and not treated of Pinus elliotti, P. taeda, and Araucaria angustifolia in larval cultures of ovine gastrintestinal helminths. Feces samples were collected between 8 to 12am, from a lamb naturally infected with gastrintestinal nematodes and analysed by the modified Mc Master technique for worm egg counting (epg).

[Seasonal variation of Haematobia irritans in the Santa Catarina State plateau and eficiency of the "Directed Control"].

This experiment had the aims of collecting information about seasonal variation; to evaluate the efficacy of the directed control method, in which only the most susceptible animals to Haematobia irritans infestations are treated and to reduce treatment costs. From February 2001 to April 2003, in two farms situated in Lages, Santa Catarina State, Brazil, two groups of 17 adult animals each (one group per farm) were used to count fly infestation every 14 days. In farm I, 29.