Laboratory evaluation of acid-activated kaolin to protect stored paddy against infestation by stored product insects

Permual, Dindyal; Patourel, G. le

doi:10.1016/0022-474x(90)90015-k

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…In the other hand, results obtained in (Tables4-6, Fig 1-3) showed that T. confusum was more tolerant than the two other insects according to the LC 50 s of the three tested insects. These results are in agreement with those of Permual and Patourel (1990) who found that T. confusum and S. oryzae were relatively tolerant when exposed for 72 hrs. on paddy treated with activated kaolin.…”

Section: B Kaolinsupporting

confidence: 93%

“…Non-silica dust and those composed of coarser grain silicates, such as kaolin have been used traditionally as grain protectants by small-scale farmers in the developing world (Golob,1997). The toxicity of acid-activated kaolin to adult population of Sitophilus oryzae, Sitophilus zeamais, Tribolium castaneum,Cryptolestes pusillus,Oryzaephilus surinamensis and Rhyzopertha dominica was assessed by admixing the material with paddy (Permual and Patourel 1990). Katelsous has tested as a carrier dust for conventional insecticides in Egypt (Mostafa and Al-Moagel,1989).…”

Section: Introductionmentioning

confidence: 99%

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Insecticidal Effect of Some Inert Dusts Against Three of Stored Grain Insects at Kafr El-Sheikh Governorate

El-Sayed¹,

El-Zun²,

El-latif³

et al. 2010

Journal of Plant Protection and Pathology

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Laboratory and field studies were conducted to evaluate the effect of three inert dusts, diatomaceous earth, kaolin and katelsous as wheat grain protectants against some stored grain insects, i.e., Sitophilus oryzae, Rhizopertha domininca and Tribolium confusum. Inert dusts were mixed with wheat grain in the laboratory at different concentrations. Data obtained from the laboratory experiment showed that the LC50, s of diatomaceous earth, kaolin and katelsous were 0.234, 0.071 and 0.235% w/w, 6.033, 6.306 and 8.938% w/w and 0.495, 0.496 and 103.875% w/w against S. oryzae, R. dominica and T. confusum, respectively one day after treatment. Diatomaceous earth was more effective than the other tested materials where it achieved complete mortality for the three tested insects after two days of treatment at the rate of 0.5% w/w. Results also showed that kaolin and katelsous act slowly on the tested insects, where the higher rates of 8% w/w for kaolin and 0.4% w/w for katelsous gave complete mortality after one week post treatment. For the field study (at farmers , storages), the higher concentrations (0.5, 8 and 0.4% w/w) of the three dusts, diatomaceous earth, kaolin and katelsous, respectively obtained from laboratory experiment were admixed with wheat grain and stored for 4 months at the farms. For the field experiment, the results showed that diatomaceous earth gave 100%, 91.6% and 98.2% mortality against the three tested insects, respectively after 4 months of storage at a concentration of 0.5% w/w at 7 th day of exposure. Kaolin at 8% w/w showed that adult mortality decreased from 100% at zero time of storage after 5 days of exposure to 13.7%, 27.1% and 16.9 at 4 months of storage after the same period of exposure against the three tested insects respectively. At zero time of storage, katelsous at a rate of 0.4% w/w showed the percent mortalities of 100%, 100% and 95.7% against the three tested insects, respectively at 5 days of exposure. The residual effect after 4 months of storage decreased to 14.3%, 52.9% and 35.6% mortality against the three insects, respectively at the same time of exposure. In general the results obtained showed that the diatomaceous earth had the most activity followed by katelsous and kaolin against the three tested insects. Also, the degree of effectiveness decreased with the increasing of storage periods.

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Section: B Kaolinsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Insecticidal Effect of Some Inert Dusts Against Three of Stored Grain Insects at Kafr El-Sheikh Governorate

El-Sayed¹,

El-Zun²,

El-latif³

et al. 2010

Journal of Plant Protection and Pathology

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“…Various studies on the efficacy of inert dusts have been reported [12,13,14,15,17,24,25]. Attapulgite-based clay dust was shown to control Corcyra cephalonica, T. castaneum and Caryedon serratus when applied to groundnuts at 0.5% (w/w) [24].…”

Section: Control Of T Confusum By Diatomaceous Earth (Protect-it™)mentioning

confidence: 99%

“…Attapulgite-based clay dust was shown to control Corcyra cephalonica, T. castaneum and Caryedon serratus when applied to groundnuts at 0.5% (w/w) [24]. Activated kaolin clays (aluminium silicate) have been shown to be effective against a range of stored product beetle pests [25]. A relatively new diatomaceous earth of marine origin, Insecto, has been extensively assessed in the USA [14].…”

Section: Control Of T Confusum By Diatomaceous Earth (Protect-it™)mentioning

confidence: 99%

Control of <i>Tribolium confusum</i> J. du val by diatomaceous earth (Protect It™) on stored groundnut (<i>Arachis hypogaea</i>) and aspergillus flavus link spore dispersal

Mohale¹,

Allotey²,

Siame³

2010

African Journal of Food, Agriculture, Nutrition and Development

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Environmental and human health problems associated with the use of synthetic pesticides have prompted the demand for non-polluting, biologically specific insecticides. The current study assessed the losses caused by Tribolium confusum and its control by diatomaceous earth and the effect on Aspergillus flavus spore dispersal during storage of groundnuts. When losses due to Tribolium confusum were assessed over a period of 60 days, it was found that an increase in insect population in stored groundnuts resulted in increased weight loss of stored groundnuts. The true weight loss due to insect feeding was 0.60 g per 400 g of stored groundnuts. When diatomaceous earth (DE) was applied to groundnuts followed by the introduction of insects in a compartment (A), increased mortality of insects with increased diatomaceous earth concentration was observed. For a concentration range of 0-2.5 g DE/kg groundnut, 2.5 g/kg treatment was the most effective (only 5 surviving T. confusum adults out of 50 were recovered in samples treated with 2.5 g/kg compared to 38 adults in the control samples). Larval emergence from groundnuts treated with DE also declined with increased diatomaceous earth concentration. When groundnuts were inoculated with A. flavus spores, followed by DE application and T. confusum introduction into compartment A, the transfer of spores between inoculated groundnut samples in compartment A and uninoculated samples in compartment B was reduced. The mean A. flavus spore concentration recovered from initially sterile compartment B was1.08x10 3 ; while it was 45 in the control and in samples treated with 2.5 g/kg dosage respectively. There was a significant difference in the mean numbers of spores recovered from groundnuts in different compartments (A, B) (H = 13.99, df = 4 and P = 0.007). Thus, from this study, losses due to T. confusum on groundnuts and fungal spore transfer in storage by this insect can be minimized by the application of diatomaceous earth (Protect-It™) to stored groundnuts.

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“…The properties of diatomaceous earth will depend on the species predominantly present in the original deposit.Various studies on the efficacy of inert dust have been reported. Diatomaceous earth have been used as viable alternatives to conventional pesticides for the control of stored product pests and have been extensively studied against a wide range of insects species [12][13][14][15][16][17][18][19]. Despite the advantages of diatomaceous earth such as low toxicity to mammals [20,21] and remarkable insecticidal activity [22][23][24][25].…”

Section: Introductionmentioning

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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Laboratory evaluation of acid-activated kaolin to protect stored paddy against infestation by stored product insects

Cited by 10 publications

References 8 publications

Insecticidal Effect of Some Inert Dusts Against Three of Stored Grain Insects at Kafr El-Sheikh Governorate

Insecticidal Effect of Some Inert Dusts Against Three of Stored Grain Insects at Kafr El-Sheikh Governorate

Control of <i>Tribolium confusum</i> J. du val by diatomaceous earth (Protect It™) on stored groundnut (<i>Arachis hypogaea</i>) and aspergillus flavus link spore dispersal

Evaluation of basalt powder against stored product insects

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