Bacterial resistance has been increasingly reported worldwide and is one of the major causes of failure in the treatment of infectious diseases. Natural-based products, including plant secondary metabolites (phytochemicals), can be exploited to ameliorate the problem of microbial resistance. The fruit essential oils of Alchornea cordifolia and Canthium subcordatum were obtained by hydrodistilla...

Bemisia tabaci (whitefly) infestations and the subsequent transfer of viruses are the cause of severe losses in crop production and horticultural practice. To improve biological control of B. tabaci, we investigated repellent properties of plant-produced semiochemicals. The mix of headspace volatiles, collected from naturally repellent wild tomato accessions, influenced B. tabaci initial choice...

The toxic and propagation effects on Bursaphelenchus xylophilus of 28 Thymus vulgaris red oil and white oil compounds were examined using direct contact and cotton ball bioassays. Results were compared with those of the trunk-injection nematicides emmamectin benzoate, levamisol hydrochloride and morantel tartrate. In direct contact bioassays, geraniol (LC(50), 0.47 mg/ml) was the most toxic com...

The chemical composition of the essential oil from Juniperus formosana leaves and its contact and repellent activities against Tribolium castaneum and Liposcelis bostrychophila adults were investigated. The essential oil of J. formosana leaves was obtained by hydrodistillation and analyzed by GC-MS. A total of 28 components were identified and the main compounds in the essential oil were α-pine...

This is the first comprehensive study of the genetic analysis of the majority of oleoresin components of slash pine (Pinus elliottii). Pine oleoresin, the resin secreted from the pine tree, is a raw material widely used in industrial products. The objective of this study was to explore the genetic variation and correlation between the major oleoresin components of 50 open pollinated families of...

Parsley is a biennial aromatic plant from the Apiaceae family, which characterized by an unbranched root, pinnately divided leaves, umbels and schizocarp. It contains essential oil in all parts, with phenylpropane terpene compounds as main components. rich flavonoids other polyphenolic compounds, containing furanocoumarins, carotenoids, polyacetylenes, its leaves are source of vitamins minerals...

Medicinal plants have a very significant role in the health care system. They are served as primary source of modern drugs. One such important medicinal plant is Hedychium spicatum Buch-ham. which belongs to Zingiberaceae family (ginger family). The commonly known spiked ginger lily English and Kuchri Hindi Shati Sanskrit. It commercially valuable due its rhizomes. This rhizomatous holds place ...

Endoclita signifer is a major wood-boring pest of eucalyptus trees in China, and its third instar larvae can accurately find infest mixed-species forests, although it also feed on another 51 tree species the same planted area. A total 34 volatile compounds were identified from trunks, including non-infested infested trunks with single or multiple (more than three) larval entrance cover packets,...

Hedychium spicatum (Ham-ex-smith) belongs to family zingiberaceae, is a perennial rhizomatous herb. It grows throughout subtropical Himalaya in the Indian state of Assam, Arunachal Pradesh and Uttarakhand with in an altitudinal range of 1000 to 3000 m. It is tall stout herb with fleshy rhizomes, thick straight stem with broadly lanceolate leaves. H. spicatum rhizome is mentioned as shati in Ayu...

The aim of the present work was to study bioactivity lemon, orange, and grapefruit peel essential oils (EOs) obtained from Argentinian plantations on different agronomically important insect fungal species. chemical profile EOs determined by Gas Chromatography-Mass Spectrometry (GC/MS); insecticidal activity studied through contact fumigant assays; antifungal evaluated with tests. Orange EO mos...