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Toxic and Antifeedant Effects of Different Pesticidal Plant Extracts against Beet Armyworm (Spodoptera exigua)

Phyton-International Journal of Experimental Botany 2023年第4期92卷 1161-1172页

作者： Muhammad Asad Rashad Rasool Khan Ahmed B.Aljuboory Muhammad Haroon URashid Uttam Kumar Inzamam Ul Haq Aqsa Hafeez Ahmed Noureldeen Khadiga Alharbi College of Life Science Fujian Agriculture and Forestry UniversityFuzhou350002China Department of Entomology University of AgricultureFaisalabad38000Pakistan Department of Plant Protection College of Agricultural Engineering ScienceUniversity of BaghdadBaghdad10071Iraq Department of Forestry and Range Management University of AgricultureFaisalabad38000Pakistan College of Plant Protection Fujian Agriculture and Forestry University Fuzhou350002China College of Plant Protection Gansu Agricultural UniversityLanzhou730070China Department of Plant Sciences Quaid-i-Azam UniversityIslamabad45320Pakistan Department of Biology College of ScienceTaif UniversityTaif21944Saudi Arabia Department of Biology College of SciencePrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia

The beet armyworm(BAW),Spodoptera exigua(Lepidoptera:Noctuidae)is a highly destructive pest of vegetables and field *** of beet armyworm primarily relies on synthetic pesticides,which is threatening the beneficial community and *** importantly,the BAW developed resistance to synthetic pesticides with making it difficult to ***,alternative and environment-friendly pest management tactics are urgently *** use of pesticidal plant extracts provides an effective way for a sustainable pest management *** evaluate the use of pesticidal plant extracts against BAW,we selected six plant species(Lantana camara,Aloe vera,Azadirachta indica,Cymbopogon citratus,Nicotiana tabacum,and Ocimum basilicum)for initial screening *** out of six plant species such as ***,***,*** and *** showed promising mortality of more than 50%.Therefore,we selected these four plant extracts for the subsequent *** contact bioassay,*** showed high mortality 66.63%,followed by the *** 53.33%,at 10%w/v ***,*** showed the highest mortality rate,66%at 10%w/v concentration,followed by the *** 46%through feeding ***,the feeding deterrence assay showed that *** had a high antifeedant index(−50)followed by ***(−39),and ***(−28).In living plant assay,the *** extract showed a low mean damage score 3.6 on living cotton plant followed by *** 4.5 and *** ***,extracts of three plant species provided promising results against the BAW,which can minimize the use of synthetic chemicals,particularly for small landholding *** studies are also required to evaluate the effects of these plant extract against BAW on cotton plants under field conditions to optimize the further use.

关键词： Bioassay methods feeding deterrence botanical pesticide pest management sustainable agriculture

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