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| SANTOS,S.A.; TUFFI-SANTOS,L.D.; ALFENAS,A.C.; FARIA,A.T.; SANT’ANNA-SANTOS,B.F.. |
| ABSTRACT: Drift of the herbicides carfentrazone-ethyl and glyphosate may affect the initial growth of eucalyptus. This study aimed to assess the effect of carfentrazone-ethyl and glyphosate drift on photosynthesis, leaf morphoanatomy, and initial growth of two clones of Eucalyptus grandis. Two experiments were carried out in a 2 x 4 factorial scheme, in which factor 1 was represented by two clones of E. grandis and factor 2 by four herbicide underdoses (control, 86.4 g a.e. ha-1 of glyphosate, 3.0 g a.e. ha-1 of carfentrazone-ethyl, and the mixture of 86.4 g a.e. ha-1 of glyphosate + 3.0 g a.e. ha-1 of carfentrazone-ethyl). Herbicide application was carried out by simulating the drift in the lower third of seedling canopy. Assessments were performed 23... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eucalyptus; Photosynthesis; Leaf morphoanatomy; Phytointoxication. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100223 |
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| LEITE,G.L.D.; PAULO,P.D.; TUFFI-SANTOS,L.D.; ALVARENGA,A.C.; SOARES,M.A.; DOURADO,L.R.; BISPO,E.P.R.. |
| ABSTRACT: Information on selective herbicide, including glyphosate that does not affect non-target organisms such as natural enemies, are important in integrated pest management programs in maize. The dose 13.94 L ha-1 of glyphosate was evaluated in females on 10 Trichogrammatidae species. A female of each Trichogrammatidae species was individually positioned per test tube with a card containing approximately 45 Anagasta kuehniella Zeller, 1879 (Lepidoptera: Pyralidae) eggs. For 48 h parasitism was allowed, and later the cartons were sprayed with the herbicide or with distilled water, for the control treatment. The glyphosate showed variable effects for parasitoids. The emergence of T. acacioi females was lower but that of T. atopovilia, T. demoraesi, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Herbicide Roundup; Trichogramma; Zea mays; Parasitoid. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100153 |
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