Eficiência de Azadiractina no controle de mosca-branca em meloeiro sob condições de casa de vegetação e de campo

Silva, Leonardo D. da; Bleicher, Ervino; Araújo, Adriana C.

doi:10.1590/s0102-05362003000200015

Cited by 17 publications

(19 citation statements)

References 8 publications

(8 reference statements)

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“…There are neem formulations than in similar experiments showed intermediate repellency between Biosave Neem and Neem Oil Spray, as Nim 20 and Nim 25 which prepared respectively at 0.07 and 0.06 mg mL -1 caused 17-18 and 9-13.5% repellency in adults of B. tabaci at 48 h, respectively (Gómez et al, 1997;Cubillo et al, 1999 (Gómez et al, 1997;Cubillo et al, 1999), mientras que Neemazal a concentraciones de 0.4 y 0.8 mg mL -1 ocasionó 67.83 y 70.13% de repelencia, respectivamente (Silva et al, 2003 Cubillo et al, 1999), while Neemazal at concentrations of 0.4 and 0.8 mg mL -1 caused 67.83 and 70.13% repellency respectively (Silva et al, 2003).…”

Section: Mortality Assessment and Oviposition Inhibitionmentioning

confidence: 99%

“…(Hemiptera: Aleyrodidae), en ésta se han realizado estudios con diferentes productos a base de nim determinando diferentes efectos; Margosan-O, Nim 80 y Nim Oil, ocasionan mortalidad significativa (Abou-Fakhr Hammad et al, 2000); mientras que otros como Azatin EC, Neemazal y NeemAzal-T/S son excelentes repelentes (Cubillo et al, 1999;Abou-Fakhr Hammad et al, 2000;Silva et al, 2003;Kumar y Poehling, 2006). Algunos de estos productos como el Nim 80 son eficientes en los tres aspectos ya señalados, Omar (2012) y Nzanza et al (2012) reportan estos mismos efectos.…”

Section: Introductionunclassified

“…A pest that affects a large number of agricultural crops is the greenhouse whitefly, Trialeurodes vaporariorum West (Hemiptera: Aleyrodidae), in this have been conducted studies with different products based on neem determining different effects; Margosan-O, Nim 80 and Nim Oil, causing significant mortality (Abou-Fakhr Hammad et al, 2000); while others like Azatin EC, Neemazal and Neemazal-T/S are excellent repellents (Cubillo et al, 1999;AbouFakhr Hammad et al, 2000;Silva et al, 2003;Kumar and Poehling, 2006). Some of these products like Nim 80 are efficient in all three aspects already mentioned, Islam and Omar (2012) and Nzanza et al, (2012) report these same effects.…”

Section: Introductionmentioning

confidence: 99%

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Actividad biológica de nim en adultos de mosca blanca Trialeurodes vaporariorum (Aleyrodidae) West

Muñiz-Reyes

Barreto²,

Rodríguez-Hernández

et al. 2017

Remexca

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Los insecticidas químicos para controlar Trialeurodes vaporariorum West. han sido prácticamente la única herramienta utilizada, sin embargo la problemática global de contaminación ambiental y presión selectiva a insecticidas, ha fomentado un cambio en la forma de manejar las plagas más ecológicas y eficaces. El nim o neem Azadirachta indica es una opción como insecticidas botánicos, sus metabolitos ya se han comercializado en diferentes formulaciones, sin embargo es necesario evaluar su acción insecticida e insectistática. El objetivo de esta investigación fue comparar el efecto en la mortalidad, repelencia y oviposición de productos formulados de A. indica. En este estudio se probaron cuatro formulaciones a base de aceite de nim en adultos de T. vaporariorum. Los productos que mostraron la mortalidad más alta fueron Neem Oil Spray y PHC Neeem, a una concentración de 0.6 mg mL-1. El mejor efecto repelente fue de Neem Oil Spray (82.6%), PHC Neeem (72.3%), Biosave Neem (70.8%), y Neemix 4.5 (59.9%); los dos primeros muestran mayor persistencia con efecto similar a los 3 días de evaluación. El mejor inhibidor de la oviposición fue Neem Oil Spray (99.6% utilizando 1 mg mL-1), Biosave Neem (92.8%), PHC Neeem (82.6%), y Neemix 4.5 (57%). En contraste, Biosave Neem y Neemix 4.5 estimularon la oviposición en concentraciones de 0.01-0.3 mg mL-1 y PHC Neeem a 0.035 mg mL-1. La concentración de aceite en la formulación es determinante en el efecto, pues a mayor proporción, la formulación se hace más persistente, lo contrario la hace más polar y aumenta su capacidad sistémica.

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Section: Mortality Assessment and Oviposition Inhibitionmentioning

confidence: 99%

Section: Introductionunclassified

Section: Introductionmentioning

confidence: 99%

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Actividad biológica de nim en adultos de mosca blanca Trialeurodes vaporariorum (Aleyrodidae) West

Muñiz-Reyes

Barreto²,

Rodríguez-Hernández

et al. 2017

Remexca

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“…In Lepidoptera, especially, the majority of studies focuses on the immature stages of nymphs and caterpillars (SILVA et al, 2003;VIANA;PRATES, 2003;GREENBERG et al, 2005;GONÇALVEZ-GERVÁSIO;VENDRAMIN, 2007;NATHAN et al, 2007;KUMAR et al, 2012). EL-BOKL et al (2010) analyzed the toxic effect of neem oil treatment in pre-pupae of Rhynchophorus ferrugineus Olivier (Coleoptera: Curculionidae).…”

Section: Introductionmentioning

confidence: 99%

Toxic effect of commercial formulations of neem oil, Azadirachta indica A. Juss., in pupae and adults of the sugarcane borer, Diatraea saccharalis F. (Lepidoptera: Crambidae)

Schneider

Silva²,

Conte

2017

Arq. Inst. Biol.

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To evaluate the toxic effect of commercial formulations of neem oil, Azadirachta indica A. Juss, pre-pupae (PP), young pupae (YP) and old pupae (OP) of Diatraea saccharalis F. (Lepidoptera: Crambidae) were sprayed with the diluted extract in distilled water at concentrations of 0.0, 0.3, 0.5, 1.0 and 2.0%. The neem extract caused concentration-dependent effects on mortality of pupae, and the pupae that failed to emerge in adults had multiple abnormalities. The longevity of pupae that emerged in adults (YP and OP group) did not differ from the control group. The abnormalities found in adults were related to mortality in all treatments, except at the concentration of 1.0%. Fertility was assessed according to the oviposition of adult females from the YP group that showed no abnormalities, through the evaluation of the number of deposited eggs and the rate of undeveloped eggs. The results showed a reduction in the number of eggs laid and an increase in the percentage of undeveloped eggs. These results show that neem oil has a high potential to control the toughest stage of the sugarcane borer and also reduces the further development. Therefore, commercial formulations of neem oil have a toxic effect on pupae and adults of D. saccharalis.

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“…Juss.) is known for being resistant to attacks of a number of insects, acting as a growth regulator, feeding impediment and sterilizer (Silva et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

The effects of some botanical insecticides and pymetrozine on life table parameters of silver leaf whitefly Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae)

et al. 2013

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SUMMARYThe objective of this research was to assess the effects of extracts of two medicinal plant species: Allium sativum (Linn) and Calotropis procera (Aiton), and a formulation containing azadirachtin on life table parameters of silver leaf whitefly (SLW), Bemisia tabaci biotype B (Gennadius) (Hemiptera: Aleyrodidae), grown on greenhouse tomato plants. The effects were compared to that of pymetrozine, a synthetic insecticide. Bioassays were carried out in a greenhouse under controlled conditions of 27 ± 2°C, R.H. of 55 ± 5% and 16:8 h (L:D) photo period.All treatments significantly affected the survivorship and fertility of SLW female adults, reducing the net reproduction rate, mean generation time and intrinsic rate of increase of this insect.The net reproductive rate [R 0 ] values for the populations treated with garlic extract, milkweed extract, pymetrozine, azadirachtin, control for extracts (ethanol + distilled water) and control for pesticides (distilled water) were 23. 58, 19.32, 10.78, 8.23, 49.66, 57.55; the intrinsic rate of increases [r m ] were 0. 134, 0.139, 0.110, 0.090, 0.177, 0.178; the mean generation times [T] were 23. 49, 21.23, 21.66, 23.50, 22.06, 22.69; the doubling times [DT] were 5.14, 4. 95, 6.27, 7.56, 3.91, 3.87, and the finite rates of increase [λ] were 1.144, 1.149, 1.116, 1.094, 1.193, 1.195, respectively. Azadirachtin had the highest effect on the life table parameters of SLW.Our findings indicated that, although herbal extracts were not effective as much as the chemical insecticides, they can be effective in pest control. Therefore, they are suitable choices for replacing chemical insecticides and for alternative use with azadirachtin in SLW IPM program.

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Eficiência de Azadiractina no controle de mosca-branca em meloeiro sob condições de casa de vegetação e de campo

Cited by 17 publications

References 8 publications

Actividad biológica de nim en adultos de mosca blanca Trialeurodes vaporariorum (Aleyrodidae) West

Actividad biológica de nim en adultos de mosca blanca Trialeurodes vaporariorum (Aleyrodidae) West

Toxic effect of commercial formulations of neem oil, Azadirachta indica A. Juss., in pupae and adults of the sugarcane borer, Diatraea saccharalis F. (Lepidoptera: Crambidae)

The effects of some botanical insecticides and pymetrozine on life table parameters of silver leaf whitefly Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae)

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