Effect of Essential Oils of Clove and Dill Applied as an Insecticidal Contact and Fumigant to Control some Stored Product Insects

Elgizawy, Karam; Halawa, Safaa M.; Mehany, A. L.

doi:10.21608/ajnsa.2018.12394

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…Somewhat similar results Azab et al (2018) obtained where LC50 of 0.31 and 0.13 % of clove oil at 10 and 14 days were reported for S. oryzae when treated on wheat. LC50 of 0.11, 0.10, and 1.02 % concentration of clove oil (w/w%) were obtained for S. oryzea, Rhyzopertha dominica and Tribolium castaneum, respectively at 10 days when treated to wheat grain (El-Gizawy et al 2018). In another study, LD50 and LD99 of the Acanthoscelides obtectus were obtained, respectively, at 141 and 359.2 μl/kg of beans (Jumbo et al 2014).…”

Section: Discussionmentioning

confidence: 87%

Toxicity evaluation of essential oil of clove (Syzygium aromaticum) bud against Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

Aryal,

Poudel,

Bajracharya

et al. 2023

J. Nep. Agric. Res. Counc.

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This study aimed to evaluate the efficacy, toxicity, and effectiveness of clove bud oils against Sitophilus zeamais in the stored maize variety Manakamana-4. The toxicity evaluation of the oil on maize weevils were conducted in completely randomized design (CRD) with eight treatments including seven different oil concentrations (10%, 5%, 2.5%, 1.25%, 0.625%, 0.3125% and 0.15625%) and control replicated four times at laboratory conditions in National Entomology Research Center, Khumaltar, Lalitpur, Nepal during 2020/2021. The results exhibited higher toxicity of clove oil to weevils after 72 h of oil exposure. Higher concentrations and longer exposure periods resulted in an increased mortality rate. Lower concentrations required a longer time for 50% of the weevil population to kill, whereas higher concentrations required a shorter time. Moreover, the essential oil was effective in causing the mortality of the weevil population at all three time intervals of 6, 10, and 16 days with varying mortality rate as lower concentrations required extended exposure time. In the same way, repellency assays of clove oil by applying four different concentrations (10%, 5%, 2.5% and 1.25%) on Whatman filter paper showed significant pest repellant activity. Repellent action was also highly dependent upon oil concentration and exposure time showing highest repellent activity (98.75%) at 10% concentration at 24 h interval. Additionally, it indicated higher the concentrations of clove oil higher the seed germination and fewer the weevil progeny emergence, and vice-versa. Since clove oil is considered to have low mammalian toxicity and a minimum risk pesticide, it can be incorporated into integrated pest management system in storage against maize weevils.

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Section: Discussionmentioning

confidence: 87%