Results 51 to 60 of about 12,443 (164)

EVALUATING THE TOXIC AND LATENT EFFICACY OF SPINOSAD AGAINST THE COTTON LEAFWORM, Spodoptera Iittoralis (BOISD.) [PDF]

open access: yesJournal of Plant Protection and Pathology, 2006
Spinosad is an insect control agent. Spinosad is derived from the metabolites of the naturally occurring bacteria, Saccharopolyspora spinosa. The objective of this study is to evaluate the toxicity as well as the latent efficacy of spinosad against the
A. Khidr,, M. Ahmed, H. Mohamed
doaj   +1 more source

Biosynthesis of spinosyn in Saccharopolyspora spinosa: synthesis of permethylated rhamnose and characterization of the functions of SpnH, SpnI, and SpnK. [PDF]

open access: yesJ Am Chem Soc, 2010
Spinosyn A is a polyketide-derived macrolide produced by Saccharopolyspora spinosa and is an active ingredient in several commercial insecticides. It is glycosylated by a tri-O-methylated rhamnose at C-9 and a forosamine at C-17. Previous studies indicated that the rhamnose methyltransferases are encoded by the spnH, spnI, and spnK genes. To verify the
Kim HJ   +5 more
europepmc   +4 more sources

Comprehensive genome analysis of two novel Saccharopolyspora strains-Saccharopolyspora montiporae sp. nov. and Saccharopolyspora galaxeae sp. nov. isolated from stony corals in Hainan. [PDF]

open access: yesFront Microbiol
Marine actinomycetes exhibit a high level of biodiversity and possess significant potential for the production of high-value secondary metabolites. During the course of investigation of marine actinobacteria from corals, two Saccharopolyspora strains ...
Xie Y   +11 more
europepmc   +2 more sources

Efficacy of eco-smart insecticides against certain biological stages of jasmine moth, Palpita unionalis Hb.(Lepidoptera: Pyralidae) [PDF]

open access: yesPesticidi i Fitomedicina, 2014
The efficacy of six eco-smart insecticides, Dipel 2x 6.4% WP (Bacillus thuringensis AI), Biofly 100% WP (Beauvaria bessiana AI), Radiant 12% SC (Saccharopolyspora spinosa AI), Mectin 1.8% EC (Streptomyces avermitilis AI), Nimbecidine 0.03% EC ...
Mahmoud Farag Mahmoud
doaj   +1 more source

Spinosad‐based insecticide is an effective control method for the potato soil pests Agriotes sp. and Melolontha sp.

open access: yesCrop Science, Volume 66, Issue 3, May/June 2026.
Abstract Potato (Solanum tuberosum L.) growers who would like to biologically control major soil pests of potato face an increasing challenge. Two pest species have a major impact on yield quality: white grubs (Melolontha sp.; Eschscholtz, 1829) and wireworms (Agriotes sp.; Fabricius, 1775). Farmers who want to grow potatoes in a sustainable fashion to
Gabriel Comanescu, Luke Bell
wiley   +1 more source

Biosynthesis of Spinosyn in Saccharopolyspora spinosa: Synthesis of Permethylated Rhamnose and Characterization of the Functions of SpnH, SpnI, and SpnK

open access: yes, 2016
Biosynthesis of Spinosyn in Saccharopolyspora spinosa: Synthesis of Permethylated Rhamnose and Characterization of the Functions of SpnH, SpnI, and ...
Jess A. White-Phillip (2313202)   +5 more
core   +1 more source

Duplication of partial spinosyn biosynthetic gene cluster in Saccharopolyspora spinosa enhances spinosyn production [PDF]

open access: yesFEMS Microbiology Letters, 2011
Spinosyns, the secondary metabolites produced by Saccharopolyspora spinosa, are the active ingredients in a family of insect control agents. Most of the S. spinosa genes involved in spinosyn biosynthesis are found in a contiguous c. 74-kb cluster. To increase the spinosyn production through overexpression of their biosynthetic genes, part of its gene ...
Ying, Tang   +5 more
openaire   +2 more sources

Addition of soil protists may enhance performance of agrochemical seed treatments

open access: yesSoil Science Society of America Journal, Volume 89, Issue 5, September/October 2025.
Abstract Chemicals are an integral part of modern agriculture and are applied through a variety of methods. Some agrochemicals used for crop protection are absorbed by the roots prior to translocation to the rest of the plant. To be absorbed by the root, the agrochemical must first be transported through the soil, often by water.
Christopher J. Hawxhurst   +5 more
wiley   +1 more source

Enzyme‐Catalysed Formation of Hydrocarbon Scaffolds from Geranylgeranyl Diphosphate Analogs with Shifted Double Bonds

open access: yesChemistry – A European Journal, Volume 31, Issue 23, April 22, 2025.
Four new geranylgeranyl diphosphate analogs with shifted double bonds were synthesized and together with the known analog iso‐GGPP I converted with 14 diterpene synthases. While two substrate analogs were not accepted by the enzymes, the other three analogs yielded compounds with skeletons that are not observed in nature.
Heng Li   +2 more
wiley   +1 more source

Opinion and report of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) relating to an analysis of the health risks associated with exposure to caterpillars with stinging hairs and the development of management recommendations

open access: yesFood Risk Assess Europe, Volume 3, Issue 2, April 2025.
Abstract Several species of Lepidoptera with caterpillars bearing urticating hairs are increasing their range in metropolitan France from year to year, such as the pine processionary (Thaumetopoea pityocampa Denis et Schiffermüller 1775) whose presence was historically limited to the south of France, and which is gradually being observed in the north ...
Nicolas Desneux   +105 more
wiley   +1 more source

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