scholarly journals Contact and repellency effects of Rosa damascena Mill. essential oil and its two major constituents against Tetranychus urticae Koch (Acari: Tetranychidae)

2014 ◽  
Vol 38 (4) ◽  
pp. 365 ◽  
Author(s):  
Sibel YORULMAZ SALMAN ◽  
Sabri ERBAŞ
Keyword(s):  
Essential Oil ◽  
Tetranychus Urticae ◽  
Rosa Damascena ◽  
Tetranychus Urticae Koch

Toxicity of essential oil vapours to two greenhouse pests, Tetranychus urticae Koch and Bemisia tabaci Genn.

2004 ◽  
Vol 19 (2) ◽  
pp. 167-173 ◽  
Author(s):  
İrfan Aslan ◽  
Hikmet Özbek ◽  
Önder Çalmaşur ◽  
Fikrettin Şahi̇n
Keyword(s):  
Essential Oil ◽  
Tetranychus Urticae ◽  
Bemisia Tabaci ◽  
Tetranychus Urticae Koch

scholarly journals The Effect of Hemp Essential Oil on Mortality Aulacorthum Solani Kalt. And Tetranychus Urticae Koch

2016 ◽  
Vol 23 (3) ◽  
pp. 505-511 ◽  
Author(s):  
Romuald Górski ◽  
Krzysztof Sobieralski ◽  
Marek Siwulski
Keyword(s):  
Mortality Rate ◽  
Essential Oil ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Fresh Matter ◽  
Aqueous Emulsion ◽  
Aulacorthum Solani ◽  
Two Spotted Spider Mite ◽  
Foxglove Aphid ◽  
Tetranychus Urticae Koch

Abstract Investigations concerning the effect of hemp oil on mortality of the foxglove aphid (Aulacorthum solani Kalt.) and the two spotted spider mite (Tetranychus urticae Koch) were conducted in the years 2014-2015. The tested essential oil was produced at the Institute of Natural Fibers and Medicinal Plants in Poznan. It was obtained by steam distillation of fresh panicles of Polish hemp cultivars, Beniko, Bialobrzeskie and Silesia, with low cannabinoid contents, including THC (max. 0.2% plant fresh matter). The effect of essential oil on the investigated pests was determined following the application of aqueous emulsion solution at 0.02, 0.05 and 0.1%. Mortality of agrophages was determined 24, 48 and 72 h after treatment. In this study a very high efficacy of the essential oil produced from hemp panicles was found in the reduction of population size of the foxglove aphid (A. solani). Already at 24 h after its application at a concentration of 0.1% pest mortality rate was 98.20%, while after 48 h it reached 100%. A significant, although much lesser effect of oil on the aphid population was recorded when applying it at 0.05%, with the mortality rate of the true bug after 72 h amounting to 57.33%. Essential oil also showed an effect on the two spotted spider mite (T. urticae). Following the oil application, irrespective of its concentration, a significant effect on mite mortality was observed. Its action was the strongest at its highest concentration, ie 0.1%, while mortality of the pest at 24, 48 and 72 h after treatment was 83.28, 95.83 and 98.72%, respectively.

scholarly journals Activité Acaricide Des Huiles Essentielles Du Mentha Pulegium, Origanum Compactum Et Thymus Capitatus Sur L’acarien Phytophage Tetranychus Urticae Koch (Acari : Tetranychidae)

2018 ◽  
Vol 14 (3) ◽  
pp. 118 ◽  
Author(s):  
Asmae Bakkali Aissaoui ◽  
Amal El Amrani ◽  
Said Zantar ◽  
Larbi Toukour
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Tetranychus Urticae ◽  
Contact Toxicity ◽  
Mentha Pulegium ◽  
Plant Essential Oils ◽  
Thymus Capitatus ◽  
Origanum Compactum ◽  
Main Component ◽  
Tetranychus Urticae Koch

The use of botanical acaricides extracted from plants as an alternative to replace the chemical acaricides is an interesting and efficient option to control pests and ameliorate their toxic effects to humans and the environment. The aim of this work was to evaluate the contact toxicity of Pennyroyal mint (Mentha pulegium), oregano (Origanum compactum) and thyme (Thymus capitatus) essential oils against adults, larvae and eggs of two-spotted spider mite Tetranychus urticae Koch (Tetranychidae). The chemical composition of these three plant essential oils was also characterized. Laboratory tests were conducted to determine the acaricidal effect of plant essential oils at several doses in geometric progression. The consequences of treatments on mortality were measured in relationships with concentrations of essential oils. On the other hand, the major constituents of the three essential oils were identified by gas chromatography-mass spectrometer (GC-MS) techniques. GCMS analyses proved that the major compound present in the essential oils of thyme and oregano is carvacrol (55.59 and 55.28% respectively) while the main component of pennyroyal mint essential oil is pulegone (67,63%). Laboratory bioassay results indicated that essential oils of thyme and pennyroyal mint caused the most important acaricidal effects in comparison with the essential oil of oregano. At a concentration of 1%, thyme and pennyroyal eradicate all adults of the mite while oregano causes a mortality of 84.99%. On larvae, the mortality rate of thyme, pennyroyal and oregano is 97.7; 89.47 and 57.89% respectively. The results of the present study concluded that plant essential oils could be useful in promoting research aiming at the development of new agent for pest control from the plants with medicinal values.

scholarly journals Effect of the essential oil from the latex of the fruit Mangifera indica L. on Tetranychus urticae Koch (Acari, Tetranychidae)

Acarologia ◽  
2019 ◽  
Vol 59 (3) ◽  
pp. 335-347
Author(s):  
Nicolle de Carvalho Ribeiro ◽  
Claudio Augusto Gomes da Camara ◽  
João Paulo Ramos de Melo ◽  
Marcílio Martins de Moraes
Keyword(s):  
Essential Oil ◽  
Tetranychus Urticae ◽  
Sublethal Effects ◽  
Integrated Management ◽  
Mangifera Indica ◽  
The State ◽  
Egg Laying ◽  
Major Constituent ◽  
Semiarid Region ◽  
Tetranychus Urticae Koch

Tetranychus urticae Koch is a cosmopolitan pest that causes damage to crops in protected farming activities in the semiarid region of the state of Pernambuco, Brazil. We investigated the lethal and sublethal effects of the essential oil from the latex of the mango fruit [Mangifera indica, Espada and Rosa (MESPA and MROSA) varieties] and selected monoterpenes on T. urticae. The yield of the MROSA oil was higher (9.22 ± 0.15%). The GC/MS analysis of the oils enabled the identification of 26 constituents. Terpinolene (70.14 ± 0.61%) was the major compound identified in the MESPA oil; β-pinene (38.22 ± 0.80%) was the major constituent of the MROSA oil, followed by terpinolene (29.44 ± 0.29%). The mite was more susceptible to the oils and constituents through fumigation, with no difference between the two varieties. By residual contact, the MROSA oil was 2.7-fold more toxic than the MESPA oil. Terpinolene was the most toxic constituent by fumigation, whereas β-pinene and α-pinene were the most active by residual contact. The selected compounds from M. indica also affected the behavior of the mite, exerting an influence on fecundity, feeding preference and egg-laying preference. The positive control (Azamax®) was more efficient at reducing the fecundity of the mite than the oils, but the MROSA oil was more toxic by fumigation and residual contact. The effects of fumigation and residual contact combined with the change in behavior may be a considerable advantage in the integrated management of T. urticae. For the practical use of these oils as novel acaricides, however, further investigations are needed to evaluate the effects on non-target organisms and the cost-benefit ratio for the formulation of a product to be used on protected crops in the semiarid region of the state of Pernambuco, Brazil.

Composition and acaricidal activity of Lippia sidoides essential oil against two-spotted spider mite (Tetranychus urticae Koch)

2010 ◽  
Vol 101 (2) ◽  
pp. 829-832 ◽  
Author(s):  
S.C.H. Cavalcanti ◽  
E. dos S. Niculau ◽  
A.F. Blank ◽  
C.A.G. Câmara ◽  
I.N. Araújo ◽  
...  
Keyword(s):  
Essential Oil ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Acaricidal Activity ◽  
Lippia Sidoides ◽  
Two Spotted Spider Mite ◽  
Tetranychus Urticae Koch
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