ORIGINAL ARTICLE
Efficacy of electrospun bionanofibers as fumigant pesticides in foodstuff storage
 
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1
Department of Entomology, Science and Research Branch, Islamic Azad University, Tehran, Iranz, 1477893855
2
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran, 141764418
3
Department of Plant Protection, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran, 651744161
CORRESPONDING AUTHOR
Khalil Talebi Jahromi
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran, 141764418
Submission date: 2016-04-04
Acceptance date: 2017-03-13
 
Journal of Plant Protection Research 2017;57(1):72–80
KEYWORDS
TOPICS
ABSTRACT
Essential oils as alternative synthetic pesticides for pest management of foodstuffs have recently received increased attention. Controlled and slow release formulations of essential oils are used to enhance their efficiency. Two volatile essential oils of Mentha piperita L. and Salvia offi cinalis L. were investigated for release rate and mortality percentage by fumigant toxicity against 1st instar larvae of Plodia interpunctella. Electrospinning was used to incorporate various concentrations of essential oils in nanofibers. The essential oils can be released from the nanofi bers for long periods of time, from several days to several weeks. Poly(lactic acid) was used as a green polymer carrier and the essential oils were incorporated into the nanofibers (8–15v/v% PLA). Insecticidal bioassay revealed that oil-loaded nanofibers (NFOs) were more toxic than pure essential oils (PEOs) against tested larvae. The LC50 and LT50 of NFOs were 1.2 and 4 times, respectively, more than PEOs. Our results indicated that PEOs completely lost their insecticidal activity after 14 days, whereas at the same period, NFOs had an average of 93% mortality when applied against P. interpunctella. Therefore, it can be concluded that nanofibers improved the persistence of the oil. This study presents S. officinalis has more toxicity and M. piperita had more persistence for controlling the larvae of indian meal moth.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
 
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