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| Melo,Adriano A.; Hunsche,Mauricio; Guedes,Jerson V. C.; Hahn,Lucas; Feltrin,Natalie M.. |
| ABSTRACT The association of adjuvants with phytosanitary products has been tested for several years but is commonly recommended without considering technical and scientific criteria. This study aimed to evaluate the influence of the association of insecticides with different adjuvants on surface tension, contact angle, coverage, hydrogen ionic potential (pH), and the formation of deposits exposed to rain. The insecticides thiamethoxam, imidacloprid, and lambda-cyhalothrin were tested at doses of 75 g ha−1, 150 g ha−1, and 150 g ha−1, respectively, with a spray volume of 200 L ha−1. Break-Thru 240®, Break-Thru 233®, Break-Thru Union®, Oleo FC Agraröl®, and Naturo'il® were added to each of these spray solutions. The results showed that the addition of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Surface tension contact angle potential of hydrogen (pH) coverage; And deposit. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000300315 |
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| Guedes,Jerson V. C.; Fiorin,Rubens A.; Stürmer,Glauber R.; Dal Prá,Elder; Perini,Clérison R.; Bigolin,Mauricio. |
| Normalmente, a aplicação de inseticidas para o controle de Anticarsia gemmatalis na cultura da soja é realizada com bicos hidráulicos. Dentre outras possibilidades se destacam a assistência de ar junto à barra de pulverização e a aplicação de baixo volume oleoso por atomizadores rotativos de discos. Em um experimento realizado na cultura da soja, na safra 2009/10, avaliou-se a eficiência de controle de A. gemmatalis utilizando-se sistemas de aplicação e inseticidas. O delineamento utilizado foi bifatorial com o fator A constituído por sistemas de aplicação, sendo: A1 - pulverização com atomizadores rotativos de discos; A2 - pulverização com bicos hidráulicos; A3 - pulverização com assistência de ar e o fator D, constituído por inseticidas, sendo: D1 -... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Controle químico; Baixo volume oleoso; Assistência de ar. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662012000800014 |
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| Cherman,Mariana A.; Guedes,Jerson V. C.; Morón,Miguel A.; Prá,Elder Dal; Perini,Clérison R.; Jung,Affonso H.. |
| First record of species of Liogenys (Coleoptera, Melolonthidae) associated with winter crops in Rio Grande do Sul (Brazil). Some species of Liogenys Guerín-Meneville, 1831 are known to cause damage to soybean, corn and other summer crops in the Brazilian "Cerrado" region. This work aimed to identify melolontid larvae associated with winter crops in Rio Grande do Sul state. Larvae and adults of Liogenys species were collected from the municipalities of Ijuí, Cruz Alta, Manoel Viana, São Luiz Gonzaga and São Francisco de Assis. The specimens were identified as L. bidenticeps Moser, 1919; L. fusca Blanchard, 1851, L. obesa Burmeister, 1855, and L. sinuaticeps Moser, 1918. This is the first record of these species associated with winter grain crops, for Rio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lamellicornia; Occurrence; Taxonomy; White grubs. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000400021 |
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| Cherman,Mariana A.; Guedes,Jerson V. C.; Morón,Miguel A.; Prá,Elder Dal; Bigolin,Maurício. |
| White grubs (Coleoptera, Melolonthidae) in the "Planalto Region", Rio Grande do Sul state, Brazil: Key for identification, species richness and distribution. The objective of this study was to survey the occurrence and geographic distribution of white grub species (Coleoptera, Melolonthidae) in cultivated and non-cultivated fields of the "Planalto Region", Rio Grande do Sul state, Brazil and develop a key at genus-level. Twenty-eight species from 15 genera and three subfamilies were recorded: Dynastinae, Melolonthinae and Rutelinae. The species or genera recorded for the first time in the state are: Cyclocephala metrica, C. tucumana, Isonychus albicinctus, Liogenys bidenticeps, L. fusca, L. obesa and L. sinuaticeps, Paranomala violacea, as well as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain crops; Insecta; Rhizophagous larvae; Species assemblages; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000300005 |
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