This study reports for the first time Edessa scabriventris Stål on Eugenia uniflora (Brazilian-cherry) and on Psidium guajava (guava) (Myrtaceae), fruit trees with economic value. Its geographic distribution is extended with records for the states of Alagoas (Maceió Municipality 35°45'11.16''W; 9°40'18.52''S) and Pará (Belém Municipality 48°28'14.65''W; 1°26'14.83''S), north-northeastern Brazil.

Phytoseius litoralis n. sp., a member of the horridus species group, is described from the State of Rio Grande do Sul, in southern Brazil, based on specimens collected on Psidium guajava, Solanum concinnum and Cecropia pachystachya. This is the first species of the horridus group described from Brazil. A key to species of Phytoseius reported from Brazil is provided.

The aim of this study was to evaluate quantitatively the antimicrobial and antioxidant potentials of the leaves extracts of Guava (Psidium guajava Linn.),belonging to the Myrtaceae family. The plant samples were collected from Tajoura eastern part of Tripoli in Libya. Methanol and water were used as solvents in the extraction. The phytochemical screening showed that the ethanolic and aqueous ex...

dust accumulation capacity of ficus carica l. and psidium guajava l. was investigated from eight different sites of multan, pakistan.  leaves of both plants were used for analyzing biometric (leaf area, fresh and dry weights) and biochemical attributes (chlorophyll contents, carotenoids and ascorbic acid).  maximum dust accumulation was occurred in the plants growing near road sites, while, min...

The effect of leaf extracts of Psidium guajava and Piper betle on prolonging vase life of cut carnation flowers was studied. "Carola" and "Pallas Orange" carnation flowers, at bud stage, were pulsed 24 hours with a floral preservative. Then, flowers were placed in a vase solution containing sprite and a "germicide" (leaf extracts of P. guajava and P. betle, 8-HQC, or a copper coin). Flowers tre...

In continuation of our studies on the phytochemical investigation of medicinal plants available in the foothills of Darjeeling and Teri, we report herein the isolation of two triterpenoids betulinic acid and lupeol from the leaf extract of Psidium guajava and their potential antimicrobial and phytotoxic activities. All the structures of the isolated compounds were confirmed by spectral (IR, NMR...

The preliminary phytochemical analysis of eight medicinal plants from Amravati District (MS) was done. The plants were Abutilon indicum L .(Swart)., Euphrbia hirta L., Ficus hispida L. f., Melia azedarch L., Phyllathus reticulatus Poir. ,Psidium guajava L., vitex negundo L., Vitex pinnata L. Qualitative phytochemical analysis of these plants confirms the presence of various phytochemicals like ...

The adhesion of early settlers of dental plaque to the tooth surface has a role in the initiation of the development of dental plaque. The hydrophobic surface properties of the bacteria cell wall are indirectly responsible for the adhesion of the bacteria cell to the acquired pellicle on the tooth surfaces. In this study, the effect of aqueous extract of two plants (Psidium guajava and Piper be...

Globally, primary dysmenorrhoea is one of the most frequent gynaecological disorders in young women. It is associated with increased uterine tone, and exaggerated contractility of uterine smooth muscles. In many rural African communities, a number of medicinal plants, including Psidium guajava Linn. (family: Myrtaceae), are used traditionally for the management, control and/or treatment of prim...

Introduction: To assess and compare the anti-microbial effi cacy of ten herbal extracts against primary plaque colonizers. Materials and Methods: The branches of 10 plants with ethno-pharmacological background were collected and healthy leaves separated to prepare the fi ne powder. The extraction procedure was carried out by cold infusion method using ethanol. The working concentration of the e...