Effects of Melia azedarach L. and Peganum harmala L. extracts on nymphal and pupal developmental duration of Trialeurodes vaporariorum

Journal Title: Journal of Herbal Drugs - Year 2012, Vol 2, Issue 4

Abstract

Background & Aim: The plants of the greenhouse have been affected by infestation of the pest Trialeurodes vaporariorum, called greenhouse whitefly, which markedly reduced production. Synthetic insecticides have been widely developed and, their extensive use has brought about disadvantages, like environmental disturbance, pest resistance, lethal effects on non target organisms and toxicity to users and consumers. One alternative for control this invasive pest is the use of natural insecticides, active component isolated from the plants. Green insecticides tend to have broad spectrum activity relatively specific in their mode of action and easy to process and use. The effects of methanolic extracts of Melia azedarach L. and Peganum harmala L. on nymphal and pupal developmental duration of T. vaporariorum investigated under laboratory condition. Experimental: In both of the experiments, the leaf discs of bean plants with new hatched nymphs or pupae were placed into the round plastic petri-dishes (5 cm diameter) that filled with agar gel. The individuals of the nymph and pupa instars were treated with the concentration of M. azedarach and P. harmala extracts (80 mg/ml). In control group, water distilled was applied. Results & Discussion: The results indicate that the both methannolic extracts significantly increased nymphal developmental duration as compared to control. While, there was no significantly difference on pupal developmental duration in different treatments. The effect of plant extracts on nymphal developmental duration could be controlled on population dynamic of T. vaporariorum. Also, they could be delayed immature stages of greenhouse whitefly. Moreover, botanical pesticides appear to have potential as a good organic insecticide and provide for pest control an alternative to currently used pesticides.

Authors and Affiliations

Mahsa Dehghani; Kamal Ahmadi

Keywords

Related Articles

Evaluation of plant pigments existence in medicinal plant, sumac (Rhus coriaria L.) at two different seasons

Background & Aim: The pigments inside the leaf chloroplasts receive sunlight energy and transport it to photosynthesis reaction center. The most important of these pigments is chlorophyll. In this study, the pigments exi...

The effect of sulphur and Thiobacillus on nutrient absorption, growth and essential oil in lemon balm (Melissa officinalis L.)

Background & Aim: In order study the effect of Thiobacillus, sulphur and organic materials on vegetative growth and essence production in lemon balm (Melissa officinalis L.) was conducted in pots in field condition at Sh...

Ethnobotanical study of Sojasrood medicinal plants (Zanjan Province)

Background & Aim: Nowadays, medicinal plants play a special role in the health and well-being of the community and they are always at the forefront of scientific and research centers. Traditional medicine and ethnobotany...

Effect of salinity on vegetative growth, antioxidant and defensive enzymes in ginger (Zingber officinale Roscoe.)

Background & Aim: Ginger is common named Zingber officinale Roscoe. belongs to Zingiberaceae family which extensively used to pharmaceutic industries in addition to food industries uses. Dut to Iran is located at world s...

Anti bacterial effect , extent of phenol compound, and anti oxidant operate of alcoholic essence of Allium hirtifolium Boiss

Introduction: Shallot is a plant which belongs to Alium and Albale family , this is a native plant from Iran which is self – grown in high Zones. By regard to further use of medicine and plant’s product , use of herbal p...

Download PDF file
  • EP ID EP23366
  • DOI -
  • Views 423
  • Downloads 22

How To Cite

Mahsa Dehghani; Kamal Ahmadi (2012). Effects of Melia azedarach L. and Peganum harmala L. extracts on nymphal and pupal developmental duration of Trialeurodes vaporariorum. Journal of Herbal Drugs, 2(4), -. https://www.europub.co.uk/articles/-A-23366