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| Registros recuperados: 44 | |
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| BATISTA FILHO,ANTONIO; ALMEIDA,JOSÉ E.M.; LAMAS,CLÓVIS. |
| The compatibility of entomopathogenic microorganisms with thiamethoxam and other insecticides was studied in vitro and under field conditions. The microorganisms tested were: Aschersonia aleyrodis, Bacillus thuringiensis, Baculovirus anticarsia (NPVAg), Beauveria bassiana, Hirsutella thompsonii, Metarhizium anisopliae, Nomuraea rileyi, Paecilomyces farinosus, Sporothrix insectorum and Verticillium lecanii. Two concentrations of each product were tested in the laboratory, based on the maximum and minimum recommended rates for application in the field. The products were added to specific culture medium for growth of the entomopathogens. Reproductive and vegetative growth were evaluated for fungi, and colony forming units (CFU) were evaluated for bacteria.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Insecticide; Microbial control; Compatibility. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000300017 |
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| Chocorosqui,Viviane R.; Panizzi,Antônio R.. |
| Results of field evaluations indicated that the neotropical pentatomid Dichelops melacanthus (Dallas) is associated with wheat, Triticum aestivum L. In the no-tillage cultivation system, adults and nymphs were mostly found on the soil, near the plant stems and underneath crop residues of the preceding summer crop, usually soybean, Glycine max (L.) Merrill, or corn, Zea mays L. Wheat grown under the conventional cultivation system showed minimal bug attack. D. melacanthus caused substantial damage to no-tillage wheat plants, particularly to seedlings. Bug attack reduces the number of seed heads of up to 34%. Seed yield was reduced in 31% due to the bugs' feeding, compared to plants free of damage. All developmental phases of the wheat plant were susceptible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Insecticide; No-tillage; Seed treatment; Stink bug. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400014 |
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| Raga,Adalton; Sato,Mário E.. |
| Laboratory studies were conducted to determine the mortalities caused by spinosad in Ceratitis capitata (Wied.) and Anastrepha fraterculus (Wied.). Spinosad formulated bait, diluted in water, was compared with baits of malathion, trichlorfon, fenthion and deltamethrin. The lethal time increased for C. capitata (medfly) adults fed in lower concentrations of spinosad. The LT50 values for C. capitata were estimated in 106, 126 and 154 min for 80, 8 and 4 ppm, respectively. No differences at LT50 were observed for different ages, 2-3d, 3-5d and 5-7d old C. capitata exposed to 80 ppm. Both fruit fly species presented similar pattern of survival when treated with spinosad at 80 ppm. In general, fenthion and trichlorfon showed LT50 values lower than spinosad for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Fruit fly; Insecticide; Mortality. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000500014 |
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| Fanela,Thiago Luis Martins; Baldin,Edson Luiz Lopes; Fujihara,Ricardo Toshio. |
| The objective of this work was to develop an experimental kit for assessments of repellency, deterrence for oviposition, and insecticidal activity on adults of the whitefly Bemisia tabaci biotype B. The kit, which consisted of arenas and nebulizer, was effective for conducting bioassays, and the application of aqueous extracts by inhaler was adequate. The techniques are simple, cheap, and may contribute to research on this insect. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bemisia tabaci; Trichilia pallida; Cage; Insecticide; Nebulizer; Oviposition; Repellency. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012001200015 |
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| RAKES,M.; GRÜTZMACHER,A.D.; PAZINI,J.B.; PASINI,R.A.; SCHAEDLER,C.E.. |
| ABSTRACT: The use of pesticide mixtures constitutes a relatively common practice in rice crops. Thus, the aim of this work was to evaluate the physicochemical interaction among different pesticide tank mixes for use in paddy field rice. The study has followed technical standards specified in ABNT [Associação Brasileira de Normas Técnicas (Brazilian National Standards Organization)] NBR [Norma Brasileira Regulamentadora (Brazilian Regulatory Standard)] NBR 13875:2014 for the assessment of physicochemical compatibility by means of a dynamic technique. Treatments consisted of mixtures of 12 pesticides, which constituted 16 treatments, six of which are composed by mixing herbicides, six by mixing herbicide and insecticide, one by mixing fungicides, and three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Herbicide; Insecticide; Fungicide; Incompatibility. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100601 |
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| Pereira,J.L.; Picanço,M.C.; Silva,A.A.; Santos,E.A.; Tomé,H.V.V.; Olarte,J.B.. |
| Transgenic soybean, resistant to glyphosate, is the most dominant transgenic crop grown commercially in the world. Research works on herbicide and insecticide mixtures and their effects on microorganisms are rarely reported. This work aimed to study the impact of glyphosate, endosulfan and their mixtures on the microbial soil activity in soybean crop. The experiment was carried out in a complete randomized block design with four treatments and five replications. The treatments were glyphosate 480 SL [540 g of active ingredient (a.i.) ha-1], endosulfan 350 EC (525 g a.i. ha-1), the glyphosate 480 SL [540 g of active ingredient (a.i.) ha-1] mixed with endosulfan 350 EC (525 g a.i. ha-1) and the control. Microbial activity was evaluated five days after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Insecticide; Herbicide; Soil microorganisms. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582008000400014 |
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| McDonald, Tia Michelle; Keating, Ariel Ruth; Fausti, Scott W.; Li, Jing; Lundgren, Jonathan G.. |
| Agriculturally, South Dakota is a unique state possessing the highest rate of adoption for genetically modified crop varieties. In 2009 ninety-six percent of corn acres planted in South Dakota were genetically modified compared with eighty-five percent nationally (Economic Research Service). Additionally, South Dakota has seen a dramatic increase in the number of acres treated with insecticide over the past 20 years. These two situations taken together seem to be counterintuitive. Some genetically modified varieties, such as Bt corn, are equipped with genetic defenses so that they can protect the plant from target pests. Intuitively, one would expect to see a decrease in insecticide use as adoption of genetically modified varieties increase. Recent... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Bt corn; GM crops; Insecticide; Agricultural and Food Policy; Crop Production/Industries; Q1; Q2; Q5. |
| Ano: 2010 |
URL: http://purl.umn.edu/61427 |
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| Ceruti,Fabiane Cristina; Lazzari,Sonia Maria Noemberg. |
| The use of diatomaceous earth (DE) is a very efficient insect control measure in stored grain IPM due to its low cost, easy application, reduction of active ingredient residues, lower environmental contamination and operator safety. The objective of this research was to evaluate the efficacy of different dosages of DE mixed with powder deltamethrin for controlling Sitophilus zeamais in stored corn. Samples of 100 g of clean and dry corn, in three replicates, were submitted to the following treatments: DE (Keepdry®), at the dosages of 500, 750 and 1000 g/t; powder deltamethrin (K-Obiol®) at 0,5 g a.i. /t and 1,0 g a.i. /t; and combinations of the lowest and highest DE dosages with the two dosages of deltamethrin. Thirty adults of S. zeamais were placed in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain storage; Inert dust; Insecticide; Sitophilus zeamais. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262005000400020 |
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| Nawaz,Ahmad; Ali,Habib; Sufyan,Muhammad; Gogi,Muhammad Dildar; Arif,Muhammad Jalal; Ranjha,Mazhar Hussain; Arshid,Muhammad; Waseem,Muhammad; Mustafa,Tariq; Qasim,Muhammad; Rizwan,Muhammad; Zaynab,Madiha; Khan,Khalid Ali; Ghramh,Hamed A.. |
| ABSTRACT American bollworm (ABW), Helicoverpa armigera (Hubner), is considered as a major pest of cotton, Gossypium hirsutum, all over the globe. Due to its destructive feeding nature and continuous consumption of the same chemicals, it devolved resistant against many insecticides. Therefore, a combined application of bio- and synthetic-pesticide need to evaluate against this pest. The entomopathogenic viruses like nuclear polyhedrosis virus (NPV), a member of baculoviruses, can be the potential candidates for better control against ABW. The present study was conducted to assess the comparative efficacy of NPV and Spinosad 240SC (with the concentration of 250 mL · ha-1) against ABW in the controlled environment. The ABW was treated with different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: American bollworm; Bio-pesticide; Insecticide; Microbial control; NPV. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000400277 |
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| Grohs,Mara; Marchesan,Enio; Tomazetti,Marcos Belinazzo; Roso,Rodrigo; Formentini,Tiago Constante. |
| ABSTRACT The rapid and uniform establishment of rice crops is important for improving production. However, this condition is influenced by several factors, including the soil temperature when planting, which may delay seed germination and compromise the final stand. The aim of this study was to evaluate the behaviour of substances which have the effect of growth regulator when applied to the seeds of different rice cultivars under low-temperature conditions. The experiment was carried out in a completely randomised design with four replications in a bi-factorial scheme, where factor A was represented by the different products (gibberellic acid - AG3, tiamethoxam - TMX, Haf Plus® - HAF, and a control with water - TEST), and factor B by the irrigated rice... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Irrigated Rice; Phytohormone; Insecticide; Organo-mineral fertilizer. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000300473 |
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| Seixas,Paula Tatiana Lopes; Demuner,Antonio Jacinto; Alvarenga,Elson Santiago; Barbosa,Luiz Claudio Almeida; Marques,Ana; Farias,Elizeu de Sá; Picanço,Marcelo Coutinho. |
| ABSTRACT: The demand for effective insecticides in pest control with low toxicity to the non-target organisms, such as natural enemies and pollinators, is increasing steadily. A good alternative for synthetic insecticides is natural compounds, including essential oils (EO). This work assessed toxicity of essential oils extracted from Artemisia annua, A. absinthium, A. camphorata, A. dracunculus and A. vulgaris against the melonworm Diaphania hyalinata (Linnaeus, 1758) (Lepidoptera: Crambidae) larvae, a pest of Cucurbitaceae, and their selectivity for fire ant Solenopsis saevissima (Smith) (Hymenoptera: Formicidae) and jataí bee Tetragonisca angustula (Latreille) (Meliponinae). The plants were grown in a greenhouse with mineral fertilization and were used... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solenopsis saevissima; Tetragonisca angustula; Melonworm; Insecticide. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000600519 |
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| Buitrago, Jorge Eliecer; Ramos Sandoval, Olga Lucia; Amaya Hurtado, Dario. |
| The Lambda Cyhalothrin is an insecticide of broad spectrum used in agriculture, to reduce the loss in crops, due to the attack of some pests. This compound has the presence of the radicals chlorine, fluorine and cyano, which can cause serious effects on human health when are ingested. Because of this, exist the need of develop non - destructive methods, capable of determining the concentration of the pesticide in farming, for eradicate the presence of this substance on the fruit used as food. To achieve this, commercial Lambda Cyhalothrin and distilled water were used, to obtain the recommended dilutions for the treatment of various pests in agriculture. The samples were analyzed through colorimetry, obtaining the characteristic color spaces for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Color space; Neural fitting; Wavelength; Insecticide. |
| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4092 |
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| PAIVA,DERISVALDO R.; LIMA,DÊNIS P. DE; AVVARI,NAGA P.; ARRUDA,EDUARDO J. DE; CABRINI,ISAIAS; MARQUES,MARIA RITA; SANTOS,EDSON A. DOS; BIAGGIO,FRANCISCO C.; SANGI,DIEGO P.; BEATRIZ,ADILSON. |
| ABSTRACT Cardanol is a constituent of Cashew Nut Shell Liquid that presents larvicidal activity against Aedes aegypti. The isolation of cardanol is somewhat troublesome, however, in this work we describe an efficient and inexpensive method to obtain it as a pure material. The compound was used as starting material to make chemical transformation leading to saturated cardanol, epoxides and, halohydrins. These derivatives were tested for toxicity against Aedes aegypti larvae. The results showed that iodohydrins are very promising compounds for making commercial products to combat the vector mosquito larvae presenting a LC50 of 0.0023 ppm after 72 h of exposure. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aedes aegypti; Insecticide; Larvicide; Phenolic lipids; CNSL. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200373 |
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| Registros recuperados: 44 | |
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