the corresponding one ef neonicotinoids indicated that the latter was far deshielded as compared with the forrner. The result implies that the unsharcd electron pair on the concerned nitrogcn atom is delocalized by the presencc of strang electTon-withdrawing group and the nitrogen atom becomes partially positivc. Such nitrogen is enough to interact with the insect nAChR, but not with the verteb...

leaf-colonizing strain of Bacillus cereus. and Bacillus thuringiensis and in a subsp. kurstaki expressed in Escherichia coli the NRD-12 isolate of Bacillus thuringiensis Insecticidal activity of the CryIIA protein from

Insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) are used as active components of biopesticides and as plant incorporated protectants in transgenic crops. One of the most relevant attributes of these Bt protein-based insecticidal technologies is their high specificity, which assures lack of detrimental effects on non-target insects, vertebrates and the environment. The ident...

In this study, bioactivity and application of plant latex Manilkara zapota in agriculture fields had been studied. Latex was collected, extracted characterized with TLC, UV-Vis GCMS analyses. also subjected for seed germination pot study insecticidal activity. This found to increase water holding capacity soil porosity structure improved by latex. It inducing the root formation enhances crop yi...

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...

b-biotype bemisia tabaci is a severe insect pest worldwide in many ornamental, agricultural, and horticultural crops. control of this insect is obstructed by resistance to many acetylcholinesterase (ache)-inhibiting insecticides, such as organophosphates and carbamates. in the present work, we evaluated the acetylcholinesterase inhibitory activity of six monoterpenoids namely α-pinene, terpineo...

Withania adpressa Coss. ex Batt is a wild plant belonging to the family Solanaceae, native Mediterranean area. The present work was undertaken study chemical composition, antioxidant and insecticidal properties of (W. adpressa) extract. extract obtained by use maceration with hydroethanol, its composition characterized HPLC. Evaluation potency achieved DPPH, TAC FRAP bioassays. Insecticidal act...

In this study, in order to find novel biologically active pyrazole oxime compounds, a series of pyrazole oxime derivatives containing a 5-trifluoromethylpyridyl moiety were synthesized. Preliminary bioassays indicated that most title compounds were found to display good to excellent acaricidal activity against Tetranychus cinnabarinus at a concentration of 200 μg/mL, and some designed compounds...

Lygus species of plant-feeding insects have emerged as economically important pests of cotton in the United States. These species are not controlled by commercial Bacillus thuringiensis (Bt) cotton varieties resulting in economic losses and increased application of insecticide. Previously, a Bt crystal protein (Cry51Aa2) was reported with insecticidal activity against Lygus spp. However, transg...

The aim of the present study was to explore the aerial parts of the Polygonatum verticillatum for various biological activities such as phytotoxic, insecticidal and leishmanicidal properties. Outstanding phytotoxicity was observed for the crude extract and its subsequent solvent fractions against Lemna acquinoctialis Welv at tested doses of 5, 50 and 500 μg/ml. Complete growth inhibition (100%)...