Effect of ethanolic extract of Melia azedarach L. seeds on oviposition and egg hatching of Tetranychus urticae (Acari: Tetranychidae)
Journal Title: Journal of Herbal Drugs - Year 2011, Vol 2, Issue 3
Abstract
Background & Aim: Tetranychus urticae Koch is one of the most important pests of crops, ornamental and greenhouse plants in the world and, can damage to 900 plant species. Resistances to pesticides and acaricides have guided researches to introduce new methods to control T. urticae. Botanical pesticides are an important group of natural productions that are usually safer than conventional pesticides for humans and the environment. Extracts of genus Melia have insecticidal and anti-nutritional effects. The effect of ethanolic extracts of M. azedarach seeds on eggs hatching (hatching time & hatching rate) and egg-laying of T. urticae were investigated under laboratory conditions. Experimental: Treatments included the ethanolic plant extract (36 mg/ml) and control (ethanol 95%). The sub-lethal effect of the plant extracts was determined using a spraying bioassay. Results & Discussion: The duration of egg stage of T. urticae after exposing to plant extracts were significantly longer than control treatment with a mean±SE of 5.24±0.05 and 4.85±0.04 days, respectively. In control treatment, hatching rate of the spider mite eggs was significantly more than in plant extract treatment. The ethanolic plant extracts had significant deleterious effects on the oviposition behavior of the spider mite. So that, during four days of the experiment, the mean±SE of total oviposition of the mites was 2.95±0.65 and 12.17±1.33 in plant extract and control treatments, respectively. Industrial and practical recommendations: According to this result, substituting conventional pesticides with ethanolic seed extract of M. azedarach can be useful. However, formulating the plant extract is essential for commercial use of the acaricidal extracts. Therefore, it needs more scientific studies levels.
Authors and Affiliations
Mahla Ashrafju; Kamal Ahmadi; Haji Mohammad Taklloozadeh; Yekta Baniadami; Azita Nazarian
Keywords
Related Articles
- EP ID EP23356
- DOI -
- Views 429
- Downloads 25
The effect of hydro-alcohol extract of Trigonella foenum- graceum L. on reproductive system in Balb/c
Background & Aim: Fenugreek (Trigonella foenum- graceum L.) is a medicinal and edible plant in the family Fabaceae. The aim of this study was the effect of hydro-alcohol extract of fenugreek seed on reproductive system o...
Assessment of knowledge, belief and function of people about herbal medicines who referred to one of clinics dependent to medical university of Shiraz in 2010
Background & Aim: Herbal medicine usage is prevalent among world people from a long time ago and, It has been five times from 90th to 97th in the USA. According to increasing usage of herbal drugs and investigating the k...
Antibacterial activity of the essential oils of endemic plants
Background & Aim: Secondary metabolites with bioactive and functional properties in essence of aromatic plants can be useful for improvement of quality and persistence of food as natural preservative. The aim of this st...
Introductory study of the medicinal plant species of Kazeroon, Fars province
Background & Aim: Kazeroon, with an area of about 4060 km², is situated at 110 km in the west of Shiraz, Fars province, Iran. This area is important for plant biodiversity, due to the presence of some important habitats...
Effect of different growth regulators and wound treatment in increasing rooting of Myrtus Communis cuttings
مقدمه و هدف: استفاده از قلمه، یکی از مهمترین شیوههای افزایش درختان و درختچهها میباشد. گیاه مورد ((Myrtus communis L. یکی از گیاهان دارویی و بومی فلور ایران و از گیاهان ویژه منطقه مدیترانه است که در مناطق استپی با شرا...