Gonçalves, Paulo A.S.; Werner, Hernandes and Debarba, João F. (2004) Avaliação de biofertilizantes, extratos vegetais e diferentes substâncias alternativas no manejo de tripes em cebola em sistema orgânico. [Evaluation of biofertilizers, plant extracts, and some alternative substances to manage onion thrips in organic agriculture system.] Horticultura Brasileira, 22 (3), pp. 659-622.
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Summary
Avaliou-se substâncias alternativas no manejo de tripes (Thrips tabaci Lind.), em cebola, cv, Crioula, no sistema orgânico. Os experimentos foram conduzidos na EPAGRI, Ituporanga (SC). Os períodos entre transplante e colheita foram de 11/09/1996 a 10/01/1997 e 13/08/1997 a 11/12/1997. O delineamento foi de blocos ao acaso com 8 tratamentos em 1996 e 12 tratamentos em 1997 e quatro repetições. Em 1996 os tratamentos incluíram o biofertilizante anaeróbico 50%, biofertilizante aeróbico 5%, sulfato de manganês 1%, extrato hidroalcoólico de própolis 0,2%, macerado de ervas (“fersoral”) 2% e 4%, extrato de fumo (Nicotiana tabacum) 2 L ha-1 + 1% detergente neutro, testemunha sem aplicação. Em 1997 os tratamentos incluíram o macerado de ervas (“fersoral”) 5% 10%, enxofre pó molhável 0,25% + extrato hidroalcoólico de própolis 0,2% + extrato de samambaia 3%, biofertilizante anaeróbico 50%, biofertilizante aeróbico 5%, extrato de losna (Artemisia verlotorum) 3%, extrato de timbó (Ateleia glazioviana) 0,5%, extrato de samambaia (Pteridium aquilinum) 10%, extrato de erva-de-santa-maria (Chenopodium ambrosioides) 10%, extrato de cinamomo (Melia azedarach) 10%,extrato de camomila (Matricaria chamomilla) 5%, testemunha sem aplicação. Para aplicação dos produtos empregou-se pulverizador de pressão constante a base de CO2. Os tratamentos não causaram redução significativa na incidência de tripes e aumentos significativos na produtividade.
Summary translation
Alternative substances to manage thrips population (Thrips tabaci Lind.) on onion, in an organic agriculture system were evaluated. The experiments were carried out in Ituporanga, Santa Catarina State,Brazil. Plants of onion cv. Crioula were transplanted into two fields on 9th September/96 and 13th August/97 and harvested respectively on 10th January/97 and 11th December/97. A randomized blocks with four replicates were used in both experiments. In 1996 the treatments included the anaerobic liquid biofertilizer at 50%, aerobic liquid biofertilizer at 5%, manganese sulfate at 1%, hydroalcoholic extract of propolis at 0,2%, macerate of herbs at 2% and 4%, tobacco extract (Nicotiana tabacum) 2 L ha-1 + neutral detergent at 1%, and no spray. In 1997, the treatments were: macerate of herbs 5% and 10%; sulfur waterable powder 0,25% + propolis hydroalcoholic extract 0,2% + extract of fern (Pteridium aquilinum) 3%; anaerobic liquid biofertilizer 50%; extract of wormseed goosefoot (Chenopodium ambrosioides)10%; aerobic liquid biofertilizer 5%; extract of Ateleia glazioviana 0,5%; extract of fern (Pteridium aquilinum) 10%; extract of chinaberry(Melia zedarach) 10%; extract of camomile (Matricaria chamomilla)5%; and control without spray. The products were applied using a CO2 sprayer with constant pressure. The different treatments did not cause significant reduction in the thrips population nor any increase in yield in comparison to control treatment, without spray.
| EPrint Type: | Journal paper |
|---|---|
| Keywords: | Allium cepa, Thrips tabaci, Agricultura orgânica, Inseto, Agroecologia, Organic agriculture, Insect, Agroecology Agrovoc code: 92381 Agroecology, 15911 Organic Agriculture, 3885 Insect control, 281 Allium cepa, 30396 Thrips tabaci |
| Subjects: | Crop husbandry > Production systems > Vegetables |
| Research affiliation: | Brazil > Other organizations |
| ISSN: | 0102-0536 |
| DOI: | 10.1590/S0102-05362004000300033 |
| Deposited By: | Bernardo, Priscila |
| ID Code: | 20119 |
| Deposited On: | 16 Oct 2012 00:02 |
| Last Modified: | 16 Oct 2012 00:02 |
| Document Language: | Portuguese/Portugues |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
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