Effect of posttreatment temperature on the toxicity of five synthetic pyrethroids toTetranychus urticae Koch (Acari: Tetranychidae)

1987 ◽  
Vol 3 (2) ◽  
pp. 109-113 ◽  
Author(s):  
Bh. Subramanyam ◽  
L. K. Cutkomp
Keyword(s):  
Synthetic Pyrethroids

Synthetic Pyrethroids Determination from Functionalized Textile Materials - Permethrin

2018 ◽  
Author(s):  
Elena PERDUM ◽  
Doina TOMA ◽  
Iuliana DUMITRESCU ◽  
Cornelia-Elena MITRAN ◽  
Irina-Mariana SĂNDULACHE ◽  
...  
Keyword(s):  
Synthetic Pyrethroids ◽  
Textile Materials

scholarly journals Efficacy of two commercial synthetic pyrethroids (cypermethrin and deltamethrin) on Amblyomma variegatum and Rhipicephalus microplus strains of the south-western region of Burkina Faso

2021 ◽  
Vol 53 (3) ◽  
Author(s):  
Achille S. Ouedraogo ◽  
Olivier M. Zannou ◽  
Abel S. Biguezoton ◽  
Kouassi Yao Patrick ◽  
Adrien M. G. Belem ◽  
...  
Keyword(s):  
Burkina Faso ◽  
Pyrethroid Resistance ◽  
Tick Control ◽  
Rhipicephalus Microplus ◽  
Amblyomma Variegatum ◽  
Synthetic Pyrethroid ◽  
Cattle Tick ◽  
Control Problems ◽  
Synthetic Pyrethroids ◽  
Western Region

AbstractSince 2011, period of the livestock invasion by the cattle tick Rhipicephalus microplus in Burkina Faso (BF), tick-control problems were exacerbated. Based on farmer’s reports, most commonly used commercial acaricides were found to be ineffective in Western South part of the country. To investigate the occurrence and extent of such acaricidal ineffectiveness, we performed the standardized larval packet test (LPT) with commercial deltamethrin (vectocid) and cypermethrin (cypertop), on two cattle tick species, the native Amblyomma variegatum and the invasive R. microplus. The resistance ratios (RR) were computed with susceptible Hounde strain of Rhipicephalus geigyi as reference. The R. microplus population showed resistance to the two acaricides tested with the highest lethal concentration (LC) values, and different resistance ratios higher than 4 (deltamethrin: RR50 = 28.18 and RR90 = 32.41; cypermethrin: RR50 = 8.79 and RR90 = 23.15). In the contrary, A. variegatum population was found to be highly susceptible to acaricides tested with low lethal concentrations and resistance ratio values (deltamethrin: RR50 = 0.5 and RR90 = 0.48; cypermethrin: RR50 = 0.68 and RR90 = 0.79). These data demonstrate high synthetic pyrethroid resistance in R. microplus strain, leading to conclude that the acaricide ineffectiveness in tick populations control remains a concern in BF.

scholarly journals Synthetic pyrethroids (Type II) and freshwater fish culture: Perils and mitigations

2015 ◽  
Vol 7 (3) ◽  
pp. 163-191 ◽  
Author(s):  
A. K. Prusty ◽  
D. K. Meena ◽  
S. Mohapatra ◽  
P. Panikkar ◽  
P. Das ◽  
...  
Keyword(s):  
Freshwater Fish ◽  
Fish Culture ◽  
Synthetic Pyrethroids ◽  
Type Ii

scholarly journals Reduced susceptibility to selected synthetic pyrethroids in urban malaria vector Anopheles stephensi: a case study in Mangalore city, South India

2010 ◽  
Vol 9 (1) ◽  
pp. 179 ◽  
Author(s):  
Satyanarayan Tiwari ◽  
Susanta K Ghosh ◽  
Vijay P Ojha ◽  
Aditya P Dash ◽  
Kamaraju Raghavendra
Keyword(s):  
Malaria Vector ◽  
South India ◽  
Anopheles Stephensi ◽  
Synthetic Pyrethroids ◽  
Urban Malaria

Synthetic Pyrethroid, Natural Product, and Entomopathogenic Fungal Acaricide Product Formulations for Sustained Early Season Suppression of Host-Seeking Ixodes scapularis (Acari: Ixodidae) and Amblyomma americanum Nymphs

2020 ◽  
Author(s):  
Terry L Schulze ◽  
Robert A Jordan
Keyword(s):  
Natural Product ◽  
Ixodes Scapularis ◽  
Tick Control ◽  
Amblyomma Americanum ◽  
Synthetic Pyrethroid ◽  
Activity Period ◽  
Synthetic Pyrethroids ◽  
Seasonal Activity ◽  
Early Season ◽  
Host Seeking

Abstract We compared the ability of product formulations representing a synthetic pyrethroid acaricide (Talstar P Professional Insecticide), a natural product-based acaricide (Essentria IC3), and an entomopathogenic fungal acaricide (Met52 EC Bioinsecticide) to suppress Ixodes scapularis Say and Amblyomma americanum (L.) nymphs when applied following USEPA approved manufacturers’ label recommendations for tick control using hand-pumped knapsack sprayers before the beginning of their seasonal activity period in the spring. We applied Met52 EC Bioinsecticide (11% Metarhizium anisopliae Strain F52) to five 100 m2 plots (10.6 ml AI/plot) in mid-April 2020. Two weeks later at the end of April 2020, we treated an additional five 100 m2 plots each with either Talstar P Professional Insecticide (7.9% bifenthrin @ 2.5 ml AI/plot) or Essentria IC3 (10% rosemary oil, 5% geraniol, and 2% peppermint oil @ 86.6 ml AI/plot). Weekly sampling of all plots through the end of June 2020 showed that both Met52 EC Bioinsecticide and Essentria IC3 failed to maintain a 90% suppression threshold for I. scapularis, compared to control plots, and required two additional applications over the course of the trial. In contrast, Talstar P Professional Insecticide suppressed 100% of I. scapularis nymphs and ≥96 and 100% of A. americanum nymphs and adults, respectively. Such pre-season applications of synthetic pyrethroids significantly reduce the early season acarological risk for exposure to host-seeking ticks as well as the frequency of acaricide applications.

Resistance to synthetic pyrethroids in the bollworm,Heliothis armigerafrom Andhra Pradesh, India

1989 ◽  
Vol 27 (1) ◽  
pp. 65-76 ◽  
Author(s):  
A. R. McCaffery ◽  
A. B. S. King ◽  
A. J. Walker ◽  
H. El-Nayir
Keyword(s):  
Andhra Pradesh ◽  
Synthetic Pyrethroids

scholarly journals Characterization of pesticide consumption in the county of Santarém, Pará, Brazil

2000 ◽  
Vol 30 (4) ◽  
pp. 615-615 ◽  
Author(s):  
Nicolas SOUMIS ◽  
Marc ROULET ◽  
Marc LUCOTTE
Keyword(s):  
Methyl Parathion ◽  
Synthetic Pyrethroids ◽  
Toxic Substances ◽  
Organophosphate Insecticide ◽  
Pesticide Contamination ◽  
Annual Consumption ◽  
Per Capita ◽  
Future Work ◽  
Pesticide Usage

Many potentially harmful pesticides for both human health and the environment are used in Brazilian Amazon. However, no scientific datum on pesticide usage is presently available for this region. Consequently, it is difficult to assess which substances arc used and in which quantities. As an important premise for future work on pesticide contamination in the county of Santarém (State of Pará, Brazil), a survey was conducted in order to qualify and quantify the use of some pesticides in this region. This investigation was made between January and March 1997 and August and October 1998 and revealed use of several organophosphates, synthetic pyrethroids and carbamates insecticides. Furthermore, many herbicides and fungicides were listed. These pesticides are used for agriculture, domestic, and sanitary programs. This paper also provides a first estimation of quantities of some insecticides commonly used in agriculture (chlorpyrifos, malathion, metamidophos and methyl-parathion). The annual consumption for these four compounds is estimated at ca. 1 910 kg. Organophosphate insecticide consumption in the county of Santarém seems to be lower than the Brazilian average in terms of «per capita» and «per agricultural area» consumptions. Nevertheless, this county uses toxic substances on sensitive environments such as floodplains (várzeas), making relevant a thorough study on the potential contamination of this environment and its biota.

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