The effects of triflumuron on the mortality, fecundity, and fertility of the two-spotted spider mite, Tetranychus urticae, were evaluated in the laboratory. No differences in toxicity for larvae, protonymphs and deutonymphs were observed, but immature stages were 3.8-times more susceptible than adults at the LC50. The compound exhibited a direct contact ovicidal activity influenced by eggs age. 48-72 h old eggs were significantly more sensitive than eggs of the other age classes. No hatch inhibition was observed in eggs laid by treated adult females using a sublethal dose at two physiological times (<12 and 48-72 h old). However. fecundity decreased in younger treated females, but it increased in the older-ones. The toxicity for immatures and eggs, and the sublethal effects described suggest that triflumuron could be an interesting incorporation in integrated pest programs of T. urticae.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1023/a:1020985605115 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Synthesis and Biological Activity Evaluation of Novel Chalcone Analogues Containing a Methylxanthine Moiety and Their -Acyl Pyrazoline Derivatives.
J Agric Food Chem
December 2023
State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
On the basis of the structures of natural methylxanthines and chalcone, a series of novel chalcone analogues containing a methylxanthine moiety, -, and their -acyl pyrazoline derivatives - and - were synthesized and identified through melting points, H NMR, C NMR, and HRMS. The single crystal of compound was obtained, which further illustrated the structural characteristics of the methylxanthine-acylpyrazoline compounds. The biological tests showed that some of them displayed favorable insecticidal activities toward L.
View Article and Find Full Text PDFAssociation of growth-regulating insecticides and limonoid-based formulations: physicochemical compatibility and toxicity against Spodoptera frugiperda (Lepidoptera: Noctuidae).
J Econ Entomol
June 2023
Department of Crop Protection, Federal University of Pelotas (UFPel), Capão do Leão, Rio Grande do Sul 96160-000, Brazil.
Article Synopsis
- The study aimed to assess the compatibility and toxicity of mixtures of synthetic (growth regulators) and botanical limonoid-based insecticides for managing Spodoptera frugiperda, a significant pest.
- Results showed that mixing the insecticides reduced the mixture's pH and increased electrical conductivity, but the mixtures remained stable and compatible, similar to distilled water.
- Laboratory and field tests indicated that combining certain synthetic insecticides with botanical formulations, particularly with Azamax or Azact CE, enhanced toxicity against S. frugiperda and effectively reduced crop damage, highlighting their potential in pest management strategies.
Mini-review highlighting toxic effects of triflumuron in insects and mammalian systems.
J Biochem Mol Toxicol
June 2023
Laboratory of Research on Biologically Compatible Compounds, Faculty of Dentistry, Monastir University, Monastir, Tunisia.
Pesticides have been used to kill pests such as insects, fungi, rodents, and unwanted plants. As these compounds are potentially toxic to the target organisms, they could also be harmful to human health and the environment. Several chronic adverse effects have been identified even after months or years of exposure.
View Article and Find Full Text PDFEffects of three chitin synthesis inhibitors on egg masses, nymphs and adults of Halyomorpha halys (Hemiptera: Pentatomidae).
Pest Manag Sci
August 2023
Dipartimento di Scienze e Tecnologie Agro-Alimentari, Alma mater studiorum-Università di Bologna, Bologna, Italy.
Background: Halyomorpha halys, (brown marmorated stink bug, BMSB), is a high-concern invasive species causing severe damage to orchards in many countries outside its native Asian range. Management methods other than frequent sprays of broad-spectrum insecticides are needed to restore integrated pest management (IPM) practices in orchards. Chitin synthesis inhibitors are usually regarded as desirable options in IPM programs because of lower toxicity to beneficial insects and non-target organisms compared to neurotoxic insecticides.
View Article and Find Full Text PDF[Polyamidoamine dendrimer-functionalized silica nanocomposite with polydopamine coating for dispersive micro solid-phase extraction of benzoylurea insecticides in water samples].
Se Pu
October 2022
Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
Pesticides are used in the agricultural production process to ensure the yield and quality of agricultural products. However, in recent years, environmental pollution issues caused by pesticide residues have sparked widespread concern in society. It is important to develop convenient and efficient approaches to detect and monitor pesticide residues.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!