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2021 Journal of Agroalimentary Processes and Technologies 2021, 27(2)
 
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15 .   Effectiveness of some plant extracts against the different stages of the cochineal insect Dactylopius opuntiae on prickly pear in Syria

Authors: Imad Idris, Ghaleb Tayoub, Yaser Bakri

Volume 27, Issue 2;
Pages: 94-99; 2021
ISSN: 2069-0053 (print) (former ISSN: 1453-1399), Agroprint;
ISSN (online): 2068-9551



Abstract:

The cochineal, Dactylopius opuntiae, has recently become the main pest that damages the prickly cactus, Opuntia ficus-indica, plants in Syria. This study was conducted to evaluate the effects of juniper Juniperus foetidissima, rosemary Rosmarinus officinalis, and tobacco Virginia tobacco plant extracts for controlling of D. opuntiae under laboratory and field conditions. The results showed that the effect of V. tobacco plant extract was significantly superior compared to the effect of juniper and rosemary extracts on D. opuntiae. The 100% crude enzyme extract of B. subtilis had a significant effect on cochineal mortality after 1 day of treatment, but this effect was not significantly improved after 5 days of treatment. The findings of our study indicate that ethanol extract of tobacco leaves and crud enzymes produced by B. subtilis could be used in development and implementation of a biological control program against D. opuntiae under field conditions.

Keywords: biocontrol, Virginia tobacco, cochineal, juniper, rosemary

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