Controle de Sitophilus zeamais Mots., 1855 (Coleoptera: Curculionidae) com inseticidas empregados em frutíferas temperadas

Afonso, Ana Paula; Faria, João Luiz Carvalho; Botton, Marcos; Loeck, Alci Enimar

doi:10.1590/s0103-84782005000200001

Cited by 9 publications

(7 citation statements)

References 3 publications

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“…Due to the maximum mortality effect of chlorpyrifos in the first period, no statistical analyzes of this variable were made for all 60 days of evaluations because there was no living insects. These results agree with Afonso et al (2005), who using the same dose of chlorpyrifos insecticide in Sitophilus zeamais observed the control of 100% of the insects after 96 hours of contact with the insecticide. Table 1.…”

Section: Resultssupporting

confidence: 91%

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: Resultssupporting

confidence: 91%

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

et al. 2016

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“…One of the main reasons for low-yielding is the occurrence of fruit insect pests such as the South American fruit fly Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) the oriental fruit moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae), aphids, and secondary pests such mites and peach scales (SALLES, 1998;BOTTON et al, 2011). Also, in the past decade, a pest that has been often occurring on peach orchards is the maize weevil Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), which can damage the fruits close to harvest (AFONSO et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Selectivity of pesticides used in peach orchards on the larval stage of the predator Chrysoperla externa (Hagen)

et al. 2013

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The selectivity of sixteen pesticides used in peach orchards in Brazil was evaluated on larvae of Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) in laboratory (25±1ºC, 70±10% RH and 14 hours photophase). The bioassays consisted on the exposure of larvae to fresh dry pesticide film applied on glass plates. Lenght of each development stage, the mortality, the fecundity and fertility of survival adults were evaluated. Pesticides were classified according to the total toxic effect in harmless (<30%), slightly harmful (30-79%), moderately harmful (80-99%) and harmful (>99%), in conformity to "International Organization for Biological Control of Noxious Animals and Plants" (IOBC) recommendation. Only abamectin and deltamethrin caused significant prolongation in the post embryonic period. Fecundity and fertility of survival adults were not affected by any pesticide tested. The acaricide/insecticide abamectin, the two mineral oils, the fungicides mancozeb, dodine, azoxystrobin, captan, mancozeb + cooper oxichloride and pholpet, and the herbicide ghlyphosate were harmless; the fungicide tebuconazole was slightly harmful; the insecticide deltamethrin was moderately harmful; and the insecticides malathion, dimethoate and phosmet, and the herbicide paraquat dichloride were harmful to C. externa larvae.

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“…O bioinseticida Citromax ® foi o mais letal a S. zeamais em bioensaios de contato direto (>77% mortalidade), em detrimento ao contato residual (5,4% mortalidade). A maior mortalidade causada pelo contato direto pode estar associada ao método mais drástico de exposição (Afonso et al, 2005). Nesse contexto, A. indica possui metabólitos secundários (Mordue e Nisbet, 2000;Martinez e Van Emden, 1999, Sousa, 2018 que poderiam causar a morte do inseto de forma mais efetiva ao entrarem em contato diretamente com o seu exoesqueleto.…”

Section: Discussionunclassified

Efeito do extrato aquoso de Simarouba versicolor sobre Sitophilus zeamais (Coleoptera: Curculionidae) em laboratório

Alexandre

Souza

Faita

et al. 2022

RSD

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O uso de inseticidas sintéticos no manejo de Sitophilus zeamais tem causado problemas, como a seleção de insetos resistentes, tornando desejável a busca por estratégias de controle menos agressivas. Simarouba versicolor é uma planta nativa do Brasil, com propriedades inseticidas. Devido à ausência de informações sobre a ação de S. versicolor em pragas de grãos armazenados, foi avaliado o efeito de S. versicolor sobre adultos de S. zeamais. O efeito letal foi avaliado pela exposição via contato direto e residual ao extrato foliar de S. versicolor nas concentrações de 0,1% e 0,01%, água destilada (controle negativo) e Citromax® na concentração 0,1% (controle positivo). O efeito subletal foi avaliado por meio de parâmetros de desenvolvimento populacional (ri) do gorgulho em milho previamente exposto aos diferentes tratamentos e a repelência foi verificada em testes com chance de escolha. O contato direto com S. versicolor causou uma baixa mortalidade de S. zeamais. A mortalidade causada por Citromax® foi 72,7% superior à observada para S. versicolor após 24h da exposição. O contato residual com S. versicolor e Citromax® causaram uma baixa mortalidade de S. zeamais. Em avaliações após 120h a mortalidade causada por S. versicolor não superou 5,0%, enquanto para Citromax® a mortalidade foi de 5,4%. A população de S. zeamais exposta a água destilada teve a maior ri (0,014), sendo ≈ 28,5% superior ao ri das populações de S. zeamais expostas a S. versicolor. Citromax® apresentou uma ri negativa, indicando a provável extinção da população. S. versicolor não apresentou atividades repelente.

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Controle de Sitophilus zeamais Mots., 1855 (Coleoptera: Curculionidae) com inseticidas empregados em frutíferas temperadas

Cited by 9 publications

References 3 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

Selectivity of pesticides used in peach orchards on the larval stage of the predator Chrysoperla externa (Hagen)

Efeito do extrato aquoso de Simarouba versicolor sobre Sitophilus zeamais (Coleoptera: Curculionidae) em laboratório

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