Combination of diatomaceous earth and powder deltamethrin for insect control in stored corn

Ceruti, Fabiane Cristina; Lázzari, Sonia Maria Noemberg

doi:10.1590/s0085-56262005000400020

Cited by 29 publications

(13 citation statements)

References 11 publications

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“…In Brazil, Sitophilus zeamais Mots., 1855 (Coleoptera, Curculionidae) corn weevil has caused many quantitative and qualitative damage to corn culture, especially during storage (CANEPPELE et al, 2003;), and it stands out as the most important pest of stored grains in Brazil, and for having a high biotic potential and a large number of hosts, its control must be done effectively (CERUTI; LAZZARI, 2005).…”

Section: Introductionmentioning

confidence: 99%

Chemical pesticides and vegetal extracts on Sitophilus zeamais control in stored corn grains

et al. 2016

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Sitophilus species are major pests of stored grain and their control is achieved mainly with the use of chemical insecticides, but the indiscriminate use of these products is resulting in several undesirable factors to man and to the environment. Thus, the use of natural insecticides comes as an option to control the insects, while lessening risks to the environment. The study was conducted at the Institute of Agricultural Sciences and Technologies, Rondonópolis campus of the Federal University of Mato Grosso, in the period from March to September 2012. The experiment was conducted under three different storing conditions. Aqueous extracts were obtained by the addition of Allium sativum L, Azadirachta indica A. Juss. and Cymbopogon winterianum Jowitt vegetable powders in distilled water, at a ratio of 5 g per 100 ml, and the levels of chemical insecticides were of 0.04 and 0.15 ml/100 ml of water for deltamethrin and chlorpyrifos, respectively. Treatments were added to the corn grains, which were placed in a 2.5 L glass container, mixed by manual shaking and infested with 20 adults of unsexed Sitophilus zeamais. Grains were stored for 60 days. At 30 and 60 days, the following items were analyzed: bugs count, water content in grains and electrical conductivity. The data were submitted to analysis of variance, and means were compared by Tukey test at 5% probability. At 30 days, the efficiency of chemical insecticides in the control of Sitophilus zeamais was observed in the three storage environments. Vegetal extracts were not effective in controlling insects. The larger number of insects increased the electrical conductivity and humidity values in the grains.

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Section: Introductionmentioning

confidence: 99%

Chemical pesticides and vegetal extracts on Sitophilus zeamais control in stored corn grains

et al. 2016

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“…A positive silica dust layer thickness and insect mortality correlation was found in an earlier study (Ulrichs et al, 2008a). Likewise, a positive correlation between dose and mortality has been established by many authors in stored product pro-tection (Arnaud et al, 2005;Athanassiou, 2006;Ceruti and Lazzari, 2005;Kavallieratos et al, 2006). Nevertheless, the drawbacks of this manual application method are 1) a small capacity requiring frequent refills; 2) operator hand fatigue as a result of squeezing the bulb to force air through the blower; and 3) dusts get unevenly distributed on surfaces.…”

Section: Discussionmentioning

confidence: 73%

Insecticidal Effects of Different Application Techniques for Silica Dusts in Plant Protection on Phaedon cochleariae Fab. and Pieris brassicae L.

Mucha-Pelzer¹,

Bauer²,

Scobel³

et al. 2010

horts

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Since the 1900s, diatomaceous earth (DE) has been used as an alternative to chemical insecticides in stored product protection. New silica and DE formulations offer expanded possibilities for use in horticultural crops. However, many crop pests are found on the leaf underside and this is especially challenging when using silica because the substance must have direct contact with the insect to be effective. We tested three application techniques with three formulations of silica to evaluate their efficacy against different developmental stages of mustard leaf beetle (Phaedon cochleariae Fab.) and the cabbage worm of the large white butterfly (Pieris brassicae L.) on the host plant species pak choi (Brassica rapa ssp. chinensis L.). Formulations were applied manually with a powder blower, with an electrostatic spray gun, and in a closed chamber also working with electrostatic forces. The silica formulations used in the biotests were Fossil Shield 90.0s®, AE R974®, and a formulation developed at Humboldt University Berlin called AL-06-109. All formulations contained at least 60% silicon dioxide. Significant differences in efficacy were detected with different application methods and/or silica formulations. AL-06-109 electrostatic cabin-applied was the most effective combination. All formulations, if applied electrostatically, resulted in good coverage and in high plant protection against insect pests. Dusts applied manually were unevenly distributed and easily removed by wind from leaf surfaces. Electrostatic application with a spray gun resulted in even particle distribution on plants, but overspray was high. To accomplish even coverage without wasting so much active material, an enclosed mobile chamber with an electrostatic spray system and an attached exhaust system was developed.

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“…Corn weevil (Sitophilus zeamais Motschulsky 1885) is the main pest species of stored corn (Ceruti & Lazzari, 2005), due to its high biotic potential and capacity to attack grains both at field and in deposits and to survive at great depths in the mass of grains, besides being cosmopolitan and requiring a short period to complete its cycle (Faroni, 1992). Furthermore, the primary pest can infest entire grains, favoring the occurrence of secondary pests (Gallo et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of inert mineral dusts in the control of corn weevil

Jairoce¹,

Teixeira

Nunes

et al. 2016

Rev. bras. eng. agríc. ambient.

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Corn weevil (Sitophilus zeamais) may cause great losses in the crop and in stored corn grains. This insect is controlled with the use of chemical insecticides, which may cause serious damage to human health. One alternative of control is the use of inert dusts. The objective of this study was to evaluate the efficiency of inert dusts in the control of S. zeamais under laboratory conditions. The experiment was conducted in 2014, in a completely randomized design, and the treatments consisted of basalt dust with three different granulometries (A, B and C) and diatomaceous earth, each of which at the doses of 2 and 4 kg t-1 and a control (no application). Each treatment had four replicates, and the sample unit consisted of 20 g of corn grains infected with 10 adults of S. zeamais kept in temperature-controlled chamber at 25 °C, 70% RH and photophase of 12 h. The dust efficiency was calculated using the equation of Abbott. The mortality rate was higher with the use of diatomaceous earth, reaching 100% after 5 days of exposure and the percentage of control for basalt dusts, 29 days after treatment, was above 80%.

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Combination of diatomaceous earth and powder deltamethrin for insect control in stored corn

Cited by 29 publications

References 11 publications

Chemical pesticides and vegetal extracts on Sitophilus zeamais control in stored corn grains

Chemical pesticides and vegetal extracts on Sitophilus zeamais control in stored corn grains

Insecticidal Effects of Different Application Techniques for Silica Dusts in Plant Protection on Phaedon cochleariae Fab. and Pieris brassicae L.

Efficiency of inert mineral dusts in the control of corn weevil

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