EconPapers    
Economics at your fingertips  
 

Toxicity of Two Extracted Destruxin Against Palpita unionalis (Lepidoptera: Crambidae) under Laboratory and Field Conditions

Sabbour M. M ()

American Journal of Chemistry, 2018, vol. 3, issue 1, 1-5

Abstract: Olive trees are subjected to attack by many insect pest species that affect yield quality and quantity. Among the most common olive pest species surveyed in Egypt is Palpita unionalis. The fungus, Metarhizium anisopliae (Metschnikoff) Sorokin produces some cyclic peptide toxins, destruxins, Destruxin which may play a role in its pathogenicity in insect pests and decreases the infestations of many harmful pests. The present study aimed to evaluate the efficacy of this two solated Destruxin (Destruxin A-760 and Destruxin A- 724) against P. unionalis under laboratory and field conditions. The results obtained showed that the LC50 of Destruxin A-760 on the third larval instars was 151 ppm. However, when Destruxin A- 724 was applied on the target pest, the LC50 reached to 185 ppm. Under field conditions, both isolated Destruxin declined the rate of infestation by P. unionalis with the least infestation in case of treatment with Destruxin A- 724 compared to untreated olive trees. The yield of harvested olive fruits increased due to treatment with isolated Destruxin the highest yield in case of trees treated with Destruxin A-760.

Keywords: P. unionalis; Destruxin A- 724; Destruxin A-760 Toxicity. (search for similar items in EconPapers)
Date: 2018
References: Add references at CitEc
Citations:

Downloads: (external link)
http://onlinesciencepublishing.com/index.php/ajc/article/view/360/544 (application/pdf)
http://onlinesciencepublishing.com/index.php/ajc/article/view/360/1305 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:onl:amjoch:v:3:y:2018:i:1:p:1-5:id:360

Access Statistics for this article

More articles in American Journal of Chemistry from Online Science Publishing
Bibliographic data for series maintained by Pacharapa Naka ( this e-mail address is bad, please contact ).

 
Page updated 2025-03-19
Handle: RePEc:onl:amjoch:v:3:y:2018:i:1:p:1-5:id:360