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| Souza,Antonio P.; Marques,Maria R.; Mahmoud,Talal S.; Caputo,Bruno A.; Canhete,Gabriel M.; Leite,Carla B.; Lima,Dênis P. de. |
| This paper reports on an evaluation of the insecticidal activity of extracts prepared from leaves of Tapirira guianensis Aubl. (Anacardiaceae), Attalea phalerata (Mart. ex Spreng.) Burret (Arecaceae), Eugenia uniflora L. (Myrtaceae), and Gomphrena elegans Mart. (Amaranthaceae) and from stems of Myracrodruon urundeuva Allemão (Anacardiaceae). Four extracts and 18 fractions with a range of polarities were tested. Ten-gram batches of wheat grains were each nebulized with 1 mL of a separate extract at 10% w/v. After solvent evaporation at 38 ºC, the grains were placed into flasks along with 20 unsexed 10- to 20-day old adult individuals of Sitophilus zeamais. The assessment was carried out on the fifth and tenth day by counting and discarding the dead insects.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Secondary metabolites; Insecticidal plant; Maize weevil; Sitophilus zeamais. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062008000400024 |
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| COUTO,IRYS F.S.; FUCHS,MATEUS L.; PEREIRA,FABRÍCIO F.; MAUAD,MUNIR; SCALON,SILVANA P.Q.; DRESCH,DAIANE M.; MUSSURY,ROSILDA M.. |
| ABSTRACT Plutella xylostella L. is one of the main agents to cause damages to plants of Brassica genus, provoking negative impacts in cultures. The use of botanical extracts in plants protection has been related in literature, however, their use in the species analyzed in this study is not yet reported. We assessed the effect of aqueous and methanolic extracts of the species: Schinus terebinthifolius Raddi (Pink Pepper), Annona coriacea Mart. (Araticum), Duguetia furfuracea (A. St.-Hil.) Benth. & Hook. (Pindaúva do campo) and Trichilia silvatica C. DC. (Catiguá-branco), occuring in the state of Mato Grosso do Sul and whose feeding preference of P. xylostella larvae of 3rd instar. We intend to answer the following questions: (1) Are the plant species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annona coriacea; Duguetia furfuracea; Feeding deterrence; Insecticidal plant; Schinus terebinthifolius; Trichilia silvatica. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501781 |
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