A simple technique to assess compounds that are repellent or attractive to stored-product insects

Mohan, S.; Fields, Paul G.

doi:10.1016/s0022-474x(00)00039-4

Cited by 67 publications

(40 citation statements)

References 7 publications

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“…Because, R. dominica adults treated with DE bored into kernels, stayed inside and avoided from continuous contact with the dust. Besides the repellency effect (White et al 1966;Mohan & Fields 2002), DE also reduces the locomotion ability of R. dominica adults (Vardeman et al 2007).…”

Section: Discussionmentioning

confidence: 99%

Effects of diatomaceous earth on the mortality and progeny production of Rhyzopertha dominica (Coleoptera: Bostrychidae

Ferizli¹,

Beriş²,

Emekçi³

2011

Tarım Bilimleri Dergisi

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Laboratory experiments were conducted to assess the insecticidal effect of the diatomaceous earth (DE) formulation Insecto ® against adult stage of Rhyzopertha dominica (F.) at two levels of relative humidity i.e. 40 and 55%, and three exposure periods of 7, 14, and 21 days. Test insects were placed in vials containing 40 g of soft winter wheat mixed with 0.25, 0.50, 1.00, 1.50 and 2.00 g kg -1 DE. After respective exposure periods, mortality in all dose rates except 0.25 and 0.50 g kg -1 was found to be significantly different from mortality in control. After each exposure interval, dead and live insects were counted and removed, and then the vial containing wheat was returned to corresponding humidity chamber for 8 weeks until F 1 adults emerged. For F 1 production, applications at all dose rates were significantly different from control group. Mortality regardless of dosage for 7, 14 and 21 days exposure intervals were between 27.67-33.40 %. Despite the fact that mortality increased with the increasing dose rate, total mortality was not obtained even at the highest rate of DE. F 1 production decreased with the increasing dose rates for both r.h. conditions. Containment of population was achieved at 1.50 g kg -1 of DE for 7 days of exposure period and at 2.00 g kg -1 of DE for 14 and 21 days of exposure periods. For each exposure intervals, F 1 production of R. dominica decreased with the increasing dose rates of DE. Mortality regardless of exposure interval was 59% at 1.50 g kg -1 of DE and 75% at 2.00 g kg -1 of DE.

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Section: Discussionmentioning

confidence: 99%

Effects of diatomaceous earth on the mortality and progeny production of Rhyzopertha dominica (Coleoptera: Bostrychidae

Ferizli¹,

Beriş²,

Emekçi³

2011

Tarım Bilimleri Dergisi

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“…In addition, botanical insecticides have long been recommended as a substitute to synthetic chemical insecticides due to the fact it pose no harm to human health, eco-friendly, the cost of production is low, processing and the use by farmers is feasible [21,22]. Numerous plants contain a variety of complicated chemical compounds that can turn into relatively simple ingredients including liquids and oils and affect the insect pests via different ways (i.e.…”

Section: Introductionmentioning

confidence: 99%

Entomocidal activity of microwave energy & some aqueous plant extracts against Tribolium castaneum Herbst & Trogoderma granarium Everts

Agha

Amin²,

Khidr

et al. 2017

AIP Conference Proceedings

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Abstract.A laboratory experiment was conducted in order to evaluate the efficacy of microwave radiation and aqueous plant extracts against red flour beetle Tribolium castaneum & khapra beetle Trogoderma granarium. The larvae stage with dried fruits (black raisin, red raisin, fig and apricot) were subjected to microwave radiation at different power levels (280,560 and 840) watt for three exposure times (10, 30 and 50) seconds. Mortalities increased with an increase of concentration or exposure time or both. Thus, highest mortality 90% was achieved at 840 watt power output and exposure time 50 second for both aforementioned species. Likewise, eucalyptus Eucalyptus camaldulensis, mint Mentha canadensis and myrtle Myrtus communis were studied for their toxicity effect on mortality of larval stage at three dosages (12500, 25000 and 50000) ppm for different exposure times (1, 2, 3 and 7) days. The larvae of khapra beetle were more resistant to the insecticidal activity of plant extracts in comparison with red flour beetle larvae. The LC50 values were varied in accordance to plant extracts types and concentrations within the four interval times of exposure. The LC50 values for both khapra & red flour beetles were (47234.07 & 5760.90) ppm respectively on black raisin after 7 days exposure to eucalyptus aqueous extract.

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“…A terra diatomácea também exerce efeito sobre o comportamento dos insetos, uma vez que atua como repelente sobre adultos de Alphitobius diaperinus (Panzer, 1797) (Coleoptera: Tenebrionidae) (Alves et al, 2008;Oliveira et al, 2009), Sitophilus oryzae (L., 1763) (Coleoptera: Curculionidae), Tribolium castaneum (Herbst., 1797) (Coleoptera: Tenebrionidae) e Cryptolestes ferrugineus (Stephens, 1831) (Coleoptera: Cucujidae) (Mohan & Fields, 2002). Além disso, o silício tem apresentado efeito positivo no manejo de pragas em culturas de batata (Gomes et al, 2009), trigo (Costa et al, 2007), soja (Moraes et al, 2009), entre outras, como um complemento ao controle químico.…”

Section: Introductionunclassified

Efeitos da terra diatomácea sobre Diabrotica speciosa (Germar, 1824) (Coleoptera: Chrysomelidae) em batata inglesa

et al. 2011

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RESUMOA espécie Diabrotica speciosa é um crisomelídeo responsável por causar danos consideráveis à batateira, o que torna indispensável seu controle com inseticidas para minimizar os prejuízos causados à cultura. Assim, objetivou-se, com este trabalho, avaliar os efeitos da terra diatomácea sobre o comportamento alimentar e a mortalidade de D. speciosa em batata inglesa em condições de laboratório. Adotou-se o DIC com três tratamentos e oito repetições, sendo: 1 -testemunha; 2 -TD polvilhada (0,5 g/vaso) e 3 -TD pulverizada a 1%. As batateiras, cv. Emeraude, foram polvilhadas ou pulverizadas com TD, 30 dias após o plantio e, 24 horas após a aplicação, as plantas foram fornecidas aos insetos, sem e com chance de escolha. Houve diferença significativa entre os tratamentos, sendo a menor porcentagem de folíolos com injúrias observada em plantas que receberam a aplicação de TD pulverizada (teste sem chance de escolha) e TD polvilhada ou pulverizada (teste com chance de escolha). Também houve redução do número de injúrias foliares às 24 e às 48 horas (TD polvilhada ou pulverizada) e, às 72 horas, a redução foi observada somente com a aplicação da TD polvilhada. Com relação à ação inseticida da TD, foi verificado seu efeito após 48 horas, tanto via polvilhamento, quanto via pulverização. Assim, a aplicação de TD pode auxiliar no manejo de D. speciosa, contribuindo para conferir proteção às plantas de batata inglesa e aumentar a mortalidade desse inseto-praga.Termos para indexação: Insecta, dióxido de sílica, MIP. ABSTRACTThe species D. speciosa is a chrysomelid responsible for causing considerable damage on potato plant, making its control with insecticides essential to minimize the damage caused to this culture. The objective of this study was to evaluate the effects of diatomaceous earth (DE) on feeding behavior and mortality of D. speciosa in potato under laboratory conditions. A completely randomized design was used with three treatments and eight replicates being: 1 -control; 2 -sprinkled DE (0.5 g/vase) and 3 -1% sprayed DE. The potato plants, cv. Emeraude, were sprinkled or sprayed with DE 30 days after the planting and 24 hours after the application, the plants were supplied to insects, with and without a chance of choice. There was significant difference among treatments with a lower leaflet with injury percentage observed in plants that received the application of powdered DE (tests without chance of choice) and sprinkled or powdered DE (tests without chance of choice). There was also reduction of the number of leaf injuries at 24 and 48 hours (sprinkled or powdered DE) and, at 72 hours, the reduction was only observed with the application of sprinkled DE. Regarding the insecticidal activity of TD, its effect was verified after 48 hours, through sprinkling or spraying. As a result, the application of DE may help in the management of D. speciosa, contributing to provide protection to potato plants and to increase the mortality of this insect pest.

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A simple technique to assess compounds that are repellent or attractive to stored-product insects

Cited by 67 publications

References 7 publications

Effects of diatomaceous earth on the mortality and progeny production of Rhyzopertha dominica (Coleoptera: Bostrychidae

Effects of diatomaceous earth on the mortality and progeny production of Rhyzopertha dominica (Coleoptera: Bostrychidae

Entomocidal activity of microwave energy & some aqueous plant extracts against Tribolium castaneum Herbst & Trogoderma granarium Everts

Efeitos da terra diatomácea sobre Diabrotica speciosa (Germar, 1824) (Coleoptera: Chrysomelidae) em batata inglesa

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