Acaricidal Activity of Medicinal Plants Against the Developmental Stages 
 of the Two Spotted Spider Mite, Tetranychus urticae (Acari: Tetranychidae)

Al-alawi, Mohammad S.

doi:10.3923/ijar.2014.38.46

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…However, all tested LEs, methanol and aqueous LSEs of U. fragilis caused lower mortality of mites less than 26% (Table 3). Similarly, Al-Alawi (2014) found that the extract of Urtica pilulifera L. did not influence young adult female mites of T. urticae, but it caused high deutonymph mortality of 51%.…”

Section: Discussionmentioning

confidence: 99%

“…These latter extracts proved to be more efficacious as the volume of water used was larger than that of the FrE and LE of M. azedarach (1:2), leading to extracting more of the bioactive material; this is similar to Neem, a related meliaceous tree, which is known to be of very low solubility in water which urges the need for a larger amount of water to be used for extracting the bioactive constituents (Anonymous, 1992). Furthermore, all extracts in our study were tested as raw extracts without the addition of any surfactant; the aqueous WPE of P. damascena caused only 15.55% mite mortality whereas, Al-Alawi (2014) found that aqueous LEs of P. syriaca with Tween-80 caused mortality of 65%, followed by Achillea biebersteinii Afan. (64%) against the adult T. urticae.…”

Section: Discussionmentioning

confidence: 99%

“…Although all extracts were ineffective against the egg stage and caused less than 30% mortality; Al-Alawi (2014) indicated that the extracts of Ruta chalepensis L. and Astragalus oocephalus Boiss have the potential to be developed as botanical acaricide for T. urticae against both the deutonymph and adult instars. Erdogan et al (2012) also determined the efficacy of 5 different plant extracts of Allium sativum L., Rhododendron luteum S., Helichrysum arenarium L., Veratrum album L., and Tanacetum parthenium L. against T. urticae.…”

Section: Introductionmentioning

confidence: 99%

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Bioactivity of Indigenous Medicinal Plants against the Two-Spotted Spider Mite, Tetranychus urticae

hammad¹,

Akkary²,

Saliba³

et al. 2017

JAS

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Forty two methanol extracts and 12 aqueous extracts of 29 indigenous medicinal plant species were tested for their acaricidal bioactivity against the two spotted spider mite, Tetranychus urticae adults at the laboratory. Fourteen methanol plant extracts caused significant mortality in mites. This is the first report for the potential effect on survival of mites for 27 tested endemic plant species. Methanol whole plant extracts (WPEs) of Lotus carmeli, Alchemilla diademata, Eryngium deserlorum and aqueous fruit extracts (FrEs) of Melia azedarach caused toxic effects against the adult mites in the range of 41-46% mortality. The methanol WPE of L. carmeli and the aqueous FrE of M. azedarach (1:5) caused the highest mite mortality of 43.55% and 45.55%, respectively and each was used as reference sample for potential acaricidal activity in the methanol and aqueous treatment groups. The latter extract was not significantly different in its effect from aqueous extracts of M. azedarach leaf extract (LE) and Achillea damascena WPE. Methanol extracts of Salvia rubifolia flowers and Calendula palestina FrE were found to be more active against the adult mite than their extracts of other plant parts as leaves and flowers, respectively. The former two extracts, flower extracts of Anthemis scariosa, Echinops gaillardoti, Nepeta curviflora, and Ranunculus cuneatus, leaves and stems extract of An. scariosa and WPEs of Melissa inodora, Ranunuculus myosuroides, Origanum libanoticum and Ac. damascena were found to be comparable in their acaricidal activity to that of the whole plant extract of L. carmeli. Thus, these bioactive extracts of some local plant species can cause toxicity to adult T. urticae mites and consequently could be an alternative control for mite pests.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bioactivity of Indigenous Medicinal Plants against the Two-Spotted Spider Mite, Tetranychus urticae

hammad¹,

Akkary²,

Saliba³

et al. 2017

JAS

View full text Add to dashboard Cite

show abstract

“…Effect of Neem essential oil on pests infested eggplant crops in (June) summer 2018 After 3, 7, 14, 21 days of spray, the reduction percentages on the egg of spider mite increased to 69.69%in summer but decreased in winter to 86.98%. Al-mazra'awi, (2014) indicated that, all the tested plant extracts were ineffective against the egg stage as the percentage of unhitched eggs was less than 30%. Eggs of many mites and insect pests are generally regarded asless susceptible to adverse effects such as chemicals or unfavorable weather conditions.…”

Section: -Biological Activity Of Neem Essential Oilmentioning

confidence: 99%

Prospects of Neem Essential Oil as Bio-Pesticide and Determination of Its Residues in Eggplant Plants During Crop Production Cycle

Takla

El-Dars

Amien

et al. 2021

Egyptian Academic Journal of Biological Sciences, F. Toxicology

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“…Botanical pesticides including essentials oils are characterized by low mammalian toxicity, reduced effect on non-target organisms and short persistence in the environment (Isman, 2006;Georges et al, 2007) making them potentially preferable for incorporation in integrated pest management programs (Al-Alawi, 2013). Therefore, the current study evaluated the insecticidal activity of six essential plant oils for their toxicity against the hairy rose beetle and the honey bee, Apis mellifera which is abundant in fruit trees orchards during flowering.…”

Section: Ajabsmentioning

confidence: 99%

EFFICACY OF ESSENTIAL OILS FROM MEDICINAL PLANTS IN CONTROL OF THE HAIRY ROSE BEETLE, <i>TROPINOTA SQUALIDA</i> (SCOPOLI) AND THEIR COMPARATIVE TOXICITY TO THE HONEY BEE, <i>APIS MELLIFERA</i> L.

Al-alawi¹

2014

American Journal of Agricultural and Biological Sciences

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ABSTARCTThe insecticidal activity of essential plants oils against an important insect pest of fruit trees, the hairy rose beetle, was evaluated in topical and feeding applications in the laboratory. Essential oils that caused more than 50% mortality were further tested against the hairy rose beetle and the honey bee using different concentrations and their relative toxicities were evaluated. Results showed that eucalyptol and fir oils outperformed other tested oils and caused 72 and 64% mortality, respectively. These mortalities were not different from the application of the commercial insecticide, Deltamethrin. Moreover, eucalyptol and fir oils were more toxic to the hairy rose beetle than the dominant pollinator during fruit trees flowering, the honey bee. However, eucalyptol was relatively safer to the honey bees than fir oil. These findings indicate that eucalyptol might be applied during fruit trees bloom to control the hairy rose beetle even in the presence of honey bees if used for the crop pollination.

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Acaricidal Activity of Medicinal Plants Against the Developmental Stages of the Two Spotted Spider Mite, Tetranychus urticae (Acari: Tetranychidae)

Cited by 9 publications

References 9 publications

Bioactivity of Indigenous Medicinal Plants against the Two-Spotted Spider Mite, Tetranychus urticae

Bioactivity of Indigenous Medicinal Plants against the Two-Spotted Spider Mite, Tetranychus urticae

Prospects of Neem Essential Oil as Bio-Pesticide and Determination of Its Residues in Eggplant Plants During Crop Production Cycle

EFFICACY OF ESSENTIAL OILS FROM MEDICINAL PLANTS IN CONTROL OF THE HAIRY ROSE BEETLE, <i>TROPINOTA SQUALIDA</i> (SCOPOLI) AND THEIR COMPARATIVE TOXICITY TO THE HONEY BEE, <i>APIS MELLIFERA</i> L.

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