Insecticidal Efficacy of Silica Gel With Juniperus oxycedrus ssp. oxycedrus (Pinales: Cupressaceae) Essential Oil Against Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae)

2013 ◽  
Vol 106 (4) ◽  
pp. 1902-1910 ◽  
Author(s):  
Christos G. Athanassiou ◽  
Nickolas G. Kavallieratos ◽  
Epameinondas Evergetis ◽  
Anna-Maria Katsoula ◽  
Serkos A. Haroutounian
Keyword(s):  
Essential Oil ◽  
Silica Gel ◽  
Sitophilus Oryzae ◽  
Tribolium Confusum ◽  
Juniperus Oxycedrus ◽  
Insecticidal Efficacy ◽  
Coleoptera Tenebrionidae

scholarly journals Toxicity of Melaleuca alternifolia essential oil to the mitochondrion and NAD+/NADH dehydrogenase in Tribolium confusum

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5693 ◽  
Author(s):  
Min Liao ◽  
Qian-Qian Yang ◽  
Jin-Jing Xiao ◽  
Yong Huang ◽  
Li-Jun Zhou ◽  
...  
Keyword(s):  
Essential Oil ◽  
Respiratory Chain ◽  
Nadh Dehydrogenase ◽  
Mitochondrial Respiratory Chain ◽  
Tribolium Confusum ◽  
Melaleuca Alternifolia ◽  
Insecticidal Effect ◽  
Stored Product Pest ◽  
Insecticidal Efficacy ◽  
Mitochondrial Respiratory

Background In our previous study, Melaleuca alternifolia essential oil (EO) was considered to have an insecticidal effect by acting on the mitochondrial respiratory chain in insects. However, the mode of action is not fully understood. Methods In this study, we investigated the insecticidal efficacy of the M. alternifolia EO against another major stored-product pest, Tribolium confusum Jacquelin du Val. Rarefaction and vacuolization of the mitochondrial matrix were evident in oil-fumigated T. confusum adults. Results Alterations to the mitochondria confirmed the insecticidal effect of the M. alternifolia EO. Furthermore, comparative transcriptome analysis of T. confusum using RNA-seq indicated that most of the differentially expressed genes were involved in insecticide detoxification and mitochondrial function. The biochemical analysis showed that the intracellular NAD+/NADH ratio is involved in the differential effect of the M. alternifolia EO. Discussion These results led us to conclude that NAD+/NADH dehydrogenase may be the prime target site for the M. alternifolia EO in insects, leading to blocking of the mitochondrial respiratory chain.

Toxicity and Repellency of Chenopodium Oil To Four Species of Stored-Product Insects2

1991 ◽  
Vol 26 (1) ◽  
pp. 178-182 ◽  
Author(s):  
Helen C. F. Su
Keyword(s):  
Essential Oil ◽  
Sitophilus Oryzae ◽  
Tribolium Confusum ◽  
Lasioderma Serricorne ◽  
Chenopodium Ambrosioides

Chenopodium oil, an essential oil of Chenopodium ambrosioides L., was evaluated for its toxicity and repellency to adults of Callosobruchus machulatus (F.), Sitophilus oryzae (L.), Lasioderma serricorne (F.), and Tribolium confusum Jacquelin du Val. Topically applied, the oil was highly toxic to C. maculatus (100% mortality at 40 μg/insect) and L. serricorne (92.5% mortality at 50 μg/insect), moderately toxic to S. oryzae (52.5% mortality at 50 μg/insect), and only slightly toxic to T. confusum at 50 μg/insect. When applied to the surface of wheat, the oil was highly repellent to S. oryzae. When applied to wheat or black-eyed peas, the oil reduced infestations of S. oryzae and C. maculatus at dosages of 2000 and 1000 ppm, respectively.

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