دراسة تأثير المستخلصات النباتية لنبات : الثوم البصل و التين عل بعض الأفات التي تصيب نبات الطماطم : Allium sativum Allium cepa Cleome arabica Lycopersicon esculentum
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Date
2017
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Publisher
Université of Eloued
Abstract
This study aim to test the effectiveness of aqueous extracts of Allium sativium (garlic),
Allium cepa (onion) and Cloeme Arabica, prepared with the infusion method on some pests
that infect tomato plants by spraying them for purposes of biological control. The effect of the
efficacy of the toxicity of these extracts in vitro has been studied at the following dosages:
10%, 50%, and 100%, on insect larvae tuta absoluta, Heliothis armigera and Aphis gossypii,
where he was treated in two ways; Immerse the leaves and spray directly and follow the
observation date ranges (24 hours, 48 hours). The results showed that all of these extracts with
a toxic effect on the tested insects,comparable to chemical pesticide, In contrast, the results
showed that the doses and time flow had a clear effect on the mortality rate. Death rate was
100% at Tuta absoluta and Aphis gossypii, and 70% for Heliothis armigera, using this
through direct spraying, and for the soak sheets recorded slightly weaker spraying results. On
the other hand, the results showed an improvement in the studied characteristics of the tomato
plant treated with plant extracts compared to the control parameters. These extracts act as
biostimulants of plant growth and development, which are easily absorbed by tomato plants.
Description
التنوع البيئي و فيزيولوجيا النبات
Keywords
plant extracts. Tomato plant. Pests. Biological control. Mortality rate. biostimulants, المستخلصات النباتية ، نبات الطماطم ، نبات الثوم ، البصل ، التين