Broomrapes (Orobanche and Phelipanche species) are holoparasitic weeds that infect roots of crop hosts from Asteraceae, Brassicaceae, Apiaceae, Fabaceae, Solanaceae. The parasitic difficult to control selectively without damage once attached their roots. Identification natural compounds with herbicidal activity against pre-attached broomrape stages can provide alternatives. With the aim identif...

Field trials were laid in the farmer’s holdings at Kaalipalayam, Coimbatore district during August, 2011 to November, 2011 to assess the efficacy of selected botanical insecticides against aphids, thrips, leaf miners and defoliators infesting Solanum nigrum. The results of the experiments revealed that among the treatments, foliar spray of profenophos is found to be the best treatment for the m...

In the Campbell Hospital I have been observing the effects of Hydrarg37ri Sulphidum Nigrum and of Hydrargyri Sulphidum Rubrum in cases of chronic dysentery and chronic liver complaints for over two years. Hydrargyri Sulphidum Nigrum is prepared by rubbing together equal parts of mercury and sulphur. When this chemical compound is heated just to allow the sulphur to melt, the fused mass becomes ...

AbstractThe coccinellids Eriopis connexa (Germar), Harmonia axyridis (Pallas) and Olla v-nigrum (Mulsant) are important natural biological control agents. The purpose of this paper was to study the biology and create a fertility life table of these three coccinellid species. For the biology study, 50 insects/species were used and kept in groups of 10 in glass vials (2300cm3). For the three spec...

Spices have been added to foods since ancient times, not only as flavoring agents, but also as folk medicines and food preservatives. The current investigation deals with the extraction and phytochemical analysis of Syzygium aromaticum, Piper nigrum and Cinnamomum verum which are one of the most important spices used in India. The presence of phytochemicals including phytosterols, saponins, alk...

Various parts of Piper nigrum, Piper betle and Gnetum gnemon are used as food sources by Malaysians. The purpose of this study is to examine the anti-quorum sensing (anti-QS) properties of P. nigrum, P. betle and G. gnemon extracts. The hexane, chloroform and methanol extracts of these plants were assessed in bioassays involving Pseudomonas aeruginosa PA01, Escherichia coli [pSB401], E. coli [p...

In a multiple-choice test, the preference of egg-laying Polygonia c-album (comma butterfly) females was studied for oviposition on plants bearing surrogate leaves treated with crude methanol extracts obtained from leaves of seven host-plant species: Humulus lupulus, Urtica dioica, Ulmus glabra, Salix caprea, Ribes nigrum, Corylus avellana, and Betula pubescens. The ranking order of surrogate le...