A review of natural insecticides based on diatomaceous earths

Korunić, Zlatko; Rozman, Vlatka; Liška, Anita; Lucić, Pavo

doi:10.18047/poljo.22.1.2

Cited by 38 publications

(20 citation statements)

References 31 publications

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“…Basalt powder works through the silicon dioxide it contains. This chemically inert compound is caused by abrasion of the cuticle and digestive tract [39,40], by obstruction of the spiracles (respiratory openings) [40] and by adsorption of fatty substances. During their movement, insects come into contact with the product, making their cuticle permeable to water exchange [17].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of basalt powder against stored product insects

Melki

Barkouti

Aoudi

et al. 2022

Preprint

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The insecticidal effect of natural basalt powder on Tribolium castaneum was evaluated. Two tests were used to study the insecticidal action of the basalt powder on the stored durum wheat. The coating test followed by the Bioassay test. The coating test of Tribolium castaneum adults in 10g of natural basalt powder, for 17 samples at rate of 25 adults per sample and an uncoated control, showed an insecticidal effect of the said powder with mortality rate of 100% for 70 hours of exposure against 5% for the control sample with a homogeneity of the mortality rate for the 17 samples. The bioassay test was carried out on durum wheat, the natural basalt powder was applied as dust at six different doses. The results of showed an insecticidal efficacy closely related to the dose and the time of exposure. The 500ppm dose showed insecticidal potential after 12 days of exposure against Tribolium castaneum (100% mortality). However, the 300ppm dose showed significant efficacy (100% mortality) against Tribolium castaneum after 14 days of exposure. In addition, the doses over than or equal to 75ppm resulted in a significant reduction in the insect population (mortality more than 74% for 14 days of exposure) compared to the control, providing new approach of integrated pest management strategy.

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Section: Discussionmentioning

confidence: 99%

Evaluation of basalt powder against stored product insects

Melki

Barkouti

Aoudi

et al. 2022

Preprint

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“…Korunic and Fields [ 20 ] found that three DE-based formulations (with combinations of DE, silica gel, pyrethrin, dill essential oil, and disodium octaborate tetrahydrate—DOT and yeast) were effective at controlling insects at lower concentrations than DE alone, and at the same time, lower concentrations affected reduction of bulk density much less than DE used alone. In many cases, the synergy between DE and added substances greatly enhanced the effectiveness of a mixture and therefore, the needed effective concentrations of DE had been greatly reduced by approximately 4 to 10 times in the comparison with concentrations of DE when used alone [ 25 ]. In this study, N Form achieved higher average progeny inhibition rate than DE SilicoSec ® , particularly expressed in barley for all three insect species.…”

Section: Discussionmentioning

confidence: 99%

Natural Formulation Based on Diatomaceous Earth and Botanicals against Stored Product Insects

Paponja

Rozman

Liška

2020

Insects

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Diatomaceous earth (DE) has long been known as a potential protectant for stored cereals against various stored product insects. Despite favorable effect for the environment and human health, DE has some negative side effects on the treated commodity. In order to minimize negative response and to improve its efficacy, this paper represents a study of developed natural formulation based on DE SilicoSec® enhanced with botanicals (essential oil lavender, corn oil, and bay leaves dust) and silica gel. The activity of formulation (labeled as N Form) was tested against Sitophilus oryzae (L.), Rhyzopertha dominica (F.), and Tribolium castaneum (Herbst) in seed wheat and barley under controlled conditions. As a reference comparative value, DE SilicoSec® was used. N Form showed higher efficacy than DE, especially in barley at the lowest concentration, inducing higher mortality of all three insect species. The highest average progeny inhibition was recorded in R. dominica population both in seed wheat and barley with 94.9% and 96.3% of inhibition, respectively, followed with S. oryzae and T. castaneum inhibition of 90.6% and 86.1%, respectively, in wheat and 94.9% and 89.7%, respectively, in barley. Results indicate that the developed natural formulation N Form enhanced the activity of DE SilicoSec® using lower amount of DE dust and that it could be successfully implemented for storage of cereals as alternatives to chemical pesticides for stored product insect control.

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“…Additionally, the effectiveness of diatomaceous earth as protectants of different stored beans against their major pests has been already demonstrated (Prasantha et al, 2003;Stathers et al, 2004;Bohinc et al, Viteri Jumbo et al-Diatomaceous earth for the control of bean weevil 2013; Badii et al, 2014). The mode of action of diatomaceous earth is by damaging the insect's tegument surface (including sensilla and pores) culminating in reduction of body water content and death through desiccation (Korunić et al, 2016;Subramanyam and Roesli, 2000). Besides being relatively easy to apply, diatomaceous earth toxicity to mammalians is considered low because this chemically unreactive powder is mainly composed by silica, which does not accumulate in mammals as such molecules are excreted in the urine (Korunic, 2013).…”

Section: Introductionmentioning

confidence: 99%

Potential of diatomaceous earth as a management tool against Acanthoscelides obtectus infestations

Jumbo

Pimentel

Oliveira

et al. 2019

rcia

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The weevil Acanthoscelides obtectus (Say) (Coleoptera: Chrysomelidae: Bruchinae) is a cosmopolitan pest that causes high losses in stored beans in small storage units and especially on-farm storages. Here, it was tested the efficacy of the inert dust diatomaceous earth (DE) as an alternative to control A. obtectus in common beans (i.e., Phaseolus vulgaris L.) on different storage temperatures and exposure intervals. Using a Completely Randomized design four doses (0.25, 0.50, 0.75 and 1.00g kg-1) of diatomaceous earth on beans kept at different temperatures (25, 28, 30, 32 and 35°C). Insect mortality was evaluated after two or five days of exposure. The impacts of diatomaceous earth in the offspring of five days-exposed A. obtectus adults were evaluated. The offspring production (emerged adults) was evaluated 60 days after the exposure. The results revealed that A. obtectus mortality caused by diatomaceous earth was dose, temperature and exposure period dependent. For instance, at the lowest temperature (25°C), diatomaceous earth dose (0.25g kg-1 of beans) and exposure period of two days, the efficacy of diatomaceous earth was significantly reduced when compared to the other treatments. When applied at temperatures above 30°C, the diatomaceous earth treatments always resulted in A. obtectus mortality of at least 90%. Curiously, offspring production (F1) was reduced to over 95% in all diatomaceous earth, temperatures and exposure period treatments. Therefore, the results demonstrated that diatomaceous earth has the potential to be used as a tool to manage A. obtectus infestations in stored beans, considering that such control practice adequately reduced these insect infestations in several possible scenarios.

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A review of natural insecticides based on diatomaceous earths

Cited by 38 publications

References 31 publications

Evaluation of basalt powder against stored product insects

Evaluation of basalt powder against stored product insects

Natural Formulation Based on Diatomaceous Earth and Botanicals against Stored Product Insects

Potential of diatomaceous earth as a management tool against Acanthoscelides obtectus infestations

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