In the current study, the stem wood of Millettia ovalifolia was evaluated for antifungal, insecticidal and phytotoxic activities. The results revealed that all the fractions showed no antibacterial activity against the tested bacterial strains. In case of antifungal activity, only ethyl acetate (EA) and chloroform (C) fractions exhibited minimum inhibitory concentration both at 500 μg/ml agains...

In this study, in order to find novel biologically active pyrazole oxime compounds, a number of dichloro-allyloxy-phenol-containing pyrazole oximes were designed and synthesized according to the method of active group combination. All of the target compounds were confirmed by ¹H-NMR, (13)C-NMR and elemental analysis. In addition, bioassays showed that all of the newly synthesized compounds had ...

A simple and selective assay system was developed in the search for new insecticidal substances from Actinomycetales strains propagated on solid culture media. The strains were first tested for their ability to produce antimicrobial compounds. Only strains displaying weak or no activity were retained and screened in the insecticidal bioassay. Microbial solid cultures were given as food to larva...

Abstract The objective of the current study is to determine effect feeding rates on efficacy diflubenzuron against filth fly development in manure beef heifers. Twelve Angus × Hereford crossbred heifers (263 kg ± 16.2 BW) were used a completely randomized design and assigned 2 x factorial arrangement treatments evaluate horn flies Haematobia irritans (L.), stable Stomoxys calcitrans house Musca...

Malaria is considered to be the most prevalent vectorborne disease worldwide. For its prevention, it is necessary to have an appropriate and timely care program for patients and successful integrated and selective control of the vector species (Rafinejad et al. 2008). This control in highly endemic countries relies largely on one of two main methods: insecticide-treated (mosquito) nets (ITNs) a...

A methanol extract from the roots and aerial parts of Myrtillocactus geometrizans (Cactaceae) yielded peniocerol 1, macdougallin 2, and chichipegenin 3. The natural products 1, 2 their mixtures, MeOH and CH(2)Cl(2) extracts showed insecticidal and insect growth regulatory activity against fall armyworm [Spodoptera frugiperda J. E. Smith (Lepidoptera: Noctuidae)], an important insect pest of cor...

The fungal pathogen Hirsutella thompsonii produces an insecticidal protein named hirsutellin A (HtA), which has been described to be toxic to several species of mites, insect larvae, and cells. On the other hand, on the basis of an extensive biochemical and structural characterization, HtA has been considered to be a member of the ribotoxins family. Ribotoxins are fungal extracellular ribonucle...

Decalesides are a new class of natural insecticides which are toxic to insects by contact via the tarsal gustatory chemosensilla. The symptoms of their toxicity to insects and the rapid knockdown effect suggest neurotoxic action, but the precise mode of action and the molecular targets for decaleside action are not known. We have presented experimental evidence for the involvement of sodium pum...

The granary weevil Sitophilus granarius L. is a pest causing substantial damage to stored wheat worldwide, against which the elaboration of sustainable control methods has recently been gaining importance. Our objective was assess efficacy rapid atmospheric convection heat transfer method S. under laboratory conditions. We examined changes in adult mortality and progeny survival triggered by ef...

This article examines the extent and manner to which evaluations of flood-related precautions are affected by an individual's motivation and perception of context. It argues that the relationship between risk perception and flood risk preparedness can be fruitfully specified in terms of vulnerability and efficacy if these concepts are put into the perspective of prevention-focused motivation. T...