Insecticidal activity of pyrethrum extract and its four insecticidal constituents against house flies. II.—Synergistic activity of piperonyl butoxide with the four constituents

1962 ◽  
Vol 13 (4) ◽  
pp. 260-264 ◽  
Author(s):  
R. M. Sawicki
Keyword(s):  
Insecticidal Activity ◽  
Piperonyl Butoxide ◽  
Synergistic Activity ◽  
House Flies

Reversibility of the knockdown effect at application of aerosols against pyrethroid-resistant house flies

2021 ◽  
pp. 30-36
Author(s):  
Tatyana Alekseevna Davlianidze ◽  
Keyword(s):  
Nervous System ◽  
Insecticidal Activity ◽  
Natural Populations ◽  
Insect Nervous System ◽  
Knockdown Resistance ◽  
Russian Market ◽  
House Flies ◽  
System Sensitivity ◽  
Flying Insects ◽  
Knockdown Effect

Knockdown resistance to pyrethroids and pyrethrins is the first sign of insecticide resistance, suggesting a decrease in insect nervous system sensitivity. On the Russian market of insecticides, there are many products in the aerosol package intended for the destruction of flying insects, which include pyrethroids, which provide a quick knockdown effect in insecticide susceptible insect strains. In resistant populations, in many cases, the reversibility of paralysis is observed, which indicates insufficient effectiveness of insecticidal products. The insecticidal activity of four products in aerosol package containing pyrethroids or pyrethrins in various concentrations on houseflies in natural populations was studied in comparison with the insecticide susceptible against laboratory on strain S-NIID. The most effective formulation was on the basis of natural pyrethrins. The reversibility of paralysis of resistant populations was detected using all aerosols and amounted to 0–37 % for the Kaluga strain, 10–93 % for the Krasnogorsk, KSK-1 0–87 %, KSK-2 20–99 %, S-NIID 0 %.

Insecticidal and synergistic activity of two monoterpenes against diamondback moth (Lepidoptera: Plutellidae)

2018 ◽  
Vol 150 (2) ◽  
pp. 258-264 ◽  
Author(s):  
A.E. Webster ◽  
P. Manning ◽  
J.M. Sproule ◽  
N. Faraone ◽  
G.C. Cutler
Keyword(s):  
Insecticidal Activity ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Oral Exposure ◽  
Synergistic Activity ◽  
Low Concentrations

AbstractWe examined the insecticidal activity of linalool and thymol, against diamondback moth,Plutella xylostella(Linnaeus) (Lepidoptera: Plutellidae), and whether they would synergise the activity of spinosad against this pest. Both linalool and thymol were toxic to diamondback moth larvae by topical and oral exposure, but orders of magnitude less so than spinosad. We found that low concentrations of linalool weakly synergised spinosad, increasing its toxicity more than twofold. An interaction between spinosad, and acetone meant it was not possible to identify any potential synergisms between thymol and spinosad. Our results demonstrate limited potential for thymol and linalool to act as biopesticides or synergists for managing diamondback moth.

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