Laboratory evaluation of diatomaceous earth deposits mined from several locations in central and southeastern Europe as potential protectants against coleopteran grain pests

Athanassiou, Christos G.; Kavallieratos, Nickolas G.; Vayias, Basileios J.; Tomanović, Željko; Petrović, Andjeljko; Rozman, Vlatka; Adler, Cornel; Korunić, Zlatko; Milovanović, Dragan

doi:10.1016/j.cropro.2010.10.004

Cited by 63 publications

(31 citation statements)

References 24 publications

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“…All main effects were significant for all exposure intervals, except for V 2 and V 3 variants. The results are in accordance with previous laboratory tests, which indicated that SilicoSec ® is effective against adults of other species of Sitophilus (S. oryzae) [20]. Fig.…”

Section: Discussionsupporting

confidence: 81%

“…Preliminary studies were carried out in Romania for the first time with good results using an experimental model against the granary weevil S. granarius [20,21]. The developed experimental model includes two integrated components that can be used both independently and simultaneously to potentiate their biological action against stored grain pests.…”

Section: Discussionmentioning

confidence: 99%

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Experimental Model for Biological Control of Stored Grain Pests

Manole¹,

Lupu²,

Fătu³

et al. 2015

JAST-A

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Abstract:The insecticidal efficacy of the diatomaceous earth against granary weevil, Sitophilus granarius L. (Coleoptera: Curculionidae), with two essential oils for the degree of repellent activity, was evaluated in an experimental model in laboratory tests. The diatomaceous earth was obtained from three Romanian sources (Pătîrlagele, Urloaia and Adamclisi) and was applied at four doses of 100, 300, 500 and 900 ppm (5, 15, 25 and 45 mg, respectively) on three replicates each variant. Mortality of S. granarius adults was estimated after 7, 14 and 21 d of exposure on treated grain. The insecticidal efficacy of the examined diatomaceous earth against the granary weevil was highly influenced by exposure time, dose and essential oil type. The longer exposure times increased weevil mortality in the case of low doses (100 ppm and 300 ppm). After 60 d from the experiment initiation, the exposed grains from each variant were assessed about the progeny production. For the model proposed as bio-experiment, two essential oils in concentration of 80 µL/L air and 125 µL/L of Thymus vulgaris L. and Satureja hortensis L., respectively, were tested compared with untreated control in laboratory conditions. Both plant species belong to the family Lamiaceae, and the major active insecticidal compound was thymol among other providing to terpenoid class, such as eugenol and linalool. The species S. granarius chosen for experimental model was grown in the Research-Development Institute of Plant Protection (RDIPP) Bucharest bio-base. The results show that mortality induced from diatomaceous earth was at the level between 83.33% and 100% in all variants after 21 d, compared with untreated control and a standard product Silicosec ® .

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Experimental Model for Biological Control of Stored Grain Pests

Manole¹,

Lupu²,

Fătu³

et al. 2015

JAST-A

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“…Higher efÞcacy of Protect-It, compared with DEbased inert dusts used in this study, can be explained by the composition of Protect-It, containing 10% of silica gel that greatly enhanced the DE effectiveness (Korunić and Fields 1995), as well as by higher amorphous SiO 2 content present in the commercial product (83.7%) than that in DE S-1 and DE S-2 (78.8 and 63.2%). Athanassiou et al (2011) have also found higher efÞcacy of SilicoSec (a commercial DE formulation) compared with DE formulations originating from Central and South-Eastern Europe. However, comparing NZ and NZ ModiÞed with Protect-It, it can be concluded that considerably lower total mortality values obtained applying NZ and NZ ModiÞed formulations are the consequence of their crystalline structure, in contrast to amorphous SiO 2 structure of the DE commercial product.…”

Section: Discussionmentioning

confidence: 97%

“…Previous studies revealed that the area of South-Eastern Europe (Slovenia, Croatia, Greece, Macedonia, and Serbia) has very rich deposits of DE, which effectiveness against stored-product pests is similar to those DE based formulations registered worldwide (Korunić 1997, Vayias et al 2009, Athanassiou et al 2011. Contrary to DEs, composed mainly of amorphous silica (Golob 1997, Korunić 1998, zeolites are crystalline, hydrated aluminosilicates of alkali and alkaline earths (Christidis et al 2003, Sprynskyy et al 2005.…”

mentioning

confidence: 96%

Insecticidal Potential of Natural Zeolite and Diatomaceous Earth Formulations Against Rice Weevil (Coleoptera: Curculionidae) and Red Flour Beetle (Coleoptera: Tenebrionidae)

et al. 2012

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Insecticidal potential of natural zeolites and diatomaceous earths originating from Serbia against Sitophilus oryzae (L.) and Tribolium castaneum (Herbst) was evaluated. Two natural zeolite formulations (NZ and NZ Modified) were applied to wheat at rates of 0.50, 0.75, and 1.0 g/kg, while two diatomaceous earth (DE) formulations (DE S-1 and DE S-2) were applied at rates of 0.25, 0.50, 0.75, and 1.0 g/kg. A bioassay was conducted under laboratory conditions: temperature of 24 +/- 1 degrees C, relative humidity in the range 50-55%, in tests with natural zeolites, and 60-65%, in tests with DEs, and in all combinations for progeny production. Mortality was assessed after 7, 14, and 21 d of insect contact with treated wheat, and the total mortality after an additional 7-d recovery on untreated broken wheat. Progeny production was also assessed after 8 wk for S. oryzae and 12 wk for T. castaneum. The highest mortality for S. oryzae and T. castaneum was found after the longest exposure period and 7 d of recovery, on wheat treated with NZ at the highest rate and DEs at rates of 0.50 -1.0 g/kg. Progeny reduction higher than 90% was achieved after 14 and 21 d of contact of both beetle pests with wheat treated with DE S-1 at 0.50-1.0 g/kg and DE S-2 at 0.75-1.0 g/kg, while the same level of reduction was achieved only for T. castaneum after its contact with the highest rate of NZ formulation. NZ Modified, applied even at the highest rate, revealed much lower insecticidal potential.

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“…For example, the increase of temperature positively affects the efficacy of organophosphates, abamectin, fipronil, or DEs, while in some cases the reverse is true with pyrethroids (2,15,24,29,31,36,39). Nevertheless, the efficacy of some insecticides is not affected by temperatures.…”

Section: Discussionmentioning

confidence: 99%

Abiotic and Biotic Factors Affect Efficacy of Chlorfenapyr for Control of Stored-Product Insect Pests

Kavallieratos

Athanassiou

Hatzikonstantinou

et al. 2011

Journal of Food Protection

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Laboratory bioassays were conducted to assess pyrole chlorfenapyr as a potential grain protectant against adults of Rhyzopertha dominica, Sitophilus oryzae, Prostephanus truncatus, Tribolium confusum, and Liposcelis bostrychophila. Factors such as dose (0.01, 0.1, 0.5, 1, 5, and 10 ppm), exposure interval (7 and 14 days), temperature (20, 25, and 30°C), relative humidity (RH; 55 and 75%), and commodity (wheat, maize, barley, and paddy rice) were evaluated. Progeny production was assessed after 74 days of exposure. For L. bostrychophila and T. confusum the increase of dose increased mortality. After 7 or 14 days of exposure, mortality was low at doses of ≤ 1 ppm and did not exceed 23 or 36%, respectively, for L. bostrychophila or 13 or 58%, respectively, for T. confusum. After 14 days of exposure, mortality of S. oryzae at 30°C and 75% RH was 82.2%. Mortality of P. truncatus was considerably higher than that of the other species. At 0.5 ppm, mortality exceeded 81% after 7 days of exposure and 91% after 14 days of exposure. Progeny production of L. bostrychophila was extremely high. Very few progeny were found for T. confusum. For S. oryzae, offspring emergence was high, except at 20°C and 55% RH. For P. truncatus, progeny production in the treated maize was not avoided, even at 10 ppm. In the case of S. oryzae, at 0.1 ppm and after 14 days of exposure, mortality in wheat was higher than in the other three commodities. For R. dominica, mortality was low at 0.1 and 1 ppm for paddy rice but reached 74.4% in barley after 14 days of exposure. For T. confusum, mortality was low at 0.1 and 1 ppm in all commodities. For progeny production counts, for S. oryzae or R. dominica, adult emergence was higher in paddy rice than in the other three commodities. Finally, overall T. confusum progeny was low. Chlorfenapyr efficacy varied remarkably among the combinations tested, and it may be a viable grain protectant in combination with other insecticides.

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Laboratory evaluation of diatomaceous earth deposits mined from several locations in central and southeastern Europe as potential protectants against coleopteran grain pests

Cited by 63 publications

References 24 publications

Experimental Model for Biological Control of Stored Grain Pests

Experimental Model for Biological Control of Stored Grain Pests

Insecticidal Potential of Natural Zeolite and Diatomaceous Earth Formulations Against Rice Weevil (Coleoptera: Curculionidae) and Red Flour Beetle (Coleoptera: Tenebrionidae)

Abiotic and Biotic Factors Affect Efficacy of Chlorfenapyr for Control of Stored-Product Insect Pests

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