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Insecticidal Potential of Indigenous Flora of Soon Valley against Asian Citrus Psyllid Diaphorina citri Kuwayama and Cotton Aphid Aphis gossypii Glover

Insecticidal Potential of Indigenous Flora of Soon Valley against Asian Citrus Psyllid Diaphorina citri Kuwayama and Cotton Aphid Aphis gossypii Glover

Muhammad Bilal Tayyab1, Muhammad Zeeshan Majeed1*, Muhammad Asam Riaz1, Muhammad Anjum Aqueel2, Sylvain Nafiba Ouedraogo3, Muhammad Luqman4, Kanwer Shahzad Ahmed1 and Mujahid Tanvir1

1Department of Entomology, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan; 2Department of Entomology, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; 3Institut des Sciences de l’ Environnement et du Développement Rural (ISEDR), Université de Dédougou, Burkina Faso; 4Department of Agricultural Extension, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan.

 
*Correspondence | Muhammad Zeeshan Majeed, Department of Entomology, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan; Email: zeeshan.majeed@uos.edu.pk

ABSTRACT

Sap-sucking insect pests have been a severe threat to horticultural and agricultural crops all over the world. Asian citrus psyllid Diaphorina citri Kuwayama (Psyllidae: Hemiptera) and cotton aphid Aphis gossypii Glover (Aphididae: Hemiptera) are destructive sap-sucking pests of citrus and cotton, respectively. Extensive use of persistent synthetic insecticides against these pests poses issues of environmental contaminations and health hazards and suggests looking for alternate biorational plant protection measures such as botanical pesticides. This study evaluated the potential toxicity of acetone extracts of 40 indigenous plant species of Soon valley and surrounding salt range (Punjab, Pakistan) against D. citri and A. gossypii using standard twig-dip and leaf-dip bioassay methods, respectively. Results of initial screening bioassay showed the highest mortality of D. citri by 10% extracts of Mentha longifolia (L.) Huds. (93%), Melilotus officinalis (L.) Pall. (91%), Nerium indicum Mill. (89%), Datura alba L. (88%) and Salvia officinalis L. (81%). Second bioassay conducted against A. gossypii using different concentrations (5, 10, 20 and 40%) of the most effective botanical extracts revealed that the extract of S. officinalis was most toxic (LC50 = 18.59%), followed by N. indicum (LC50 = 20.27%) and M. longifolia (LC50 = 20.73%). Similar trend of effectiveness was observed regarding their LT50 values. Overall study results demonstrated the biocidal potential of the extracts of indigenous plant species of Soon valley against D. citri and A. gossypii, and suggest their further biochemical characterization and practical implication in future IPM programs against these and other sap-feeding insect pests.

 

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Sarhad Journal of Agriculture

December

Vol. 38, Iss. 4, Pages 1160-1546

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