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| Titel: |
Orange oil effect in the control of fennel aphid |
| Auteur: |
Edson Batista Lopes Carlos Henrique de Brito Luciano de Medeiros Pereira Brito Ivanildo Cavalcanti de Albuquerque Jacinto de Luna Batista |
| Verschenen in: |
Engenharia ambiental |
| Paginering: | Jaargang 6 (2009) nr. 2 pagina's 636-643 |
| Jaar: |
2009 |
| Inhoud: |
In the properties where fennel is grown, in the states of Bahia, Sergipe, Pernambuco and Paraiba, at the Northeast of Brazil, a high rate of usage of pesticides in the crop, aiming to control the aphid Hyadaphis foeniculi. The purpose of this study was to evaluate the effect of orange oil Prev-Am (sodium tetraborohydrate decahydrate), in the control of H. foeniculi aphid of the fennel crop. The trial was conducted in a fennel field located in Lagoa Seca Experimental Station, belonging to the EMEPA-PB. Forty-eight hours after the product has been sprayed, one flower of the umbel was collected and removed her aphids, which were placed in a "petri" plate from 9cm in diameter. As a following step, the insects were counted as part of two groups, considering the number of insects dead and alive, being tabulated for later analysis. The data were subjected to analysis of variance, using the experimental design of randomized blocks composed of six treatments (doses of 0.3, 0.4, 0.5, 0.6, 0.7% of orange oil (Prev-am) and pure water as check, with five repetitions. The data were submitted to the regression analysis. The orange oil (Prev-am) controls effectively H. foeniculi at the concentration of 0.3%, increasing the control up to concentrations of 0.6 and 0.7%. The product does not kill ladybugs (Cycloneda sanguinea) and can be used in programs for integrated pest management.Keywords: Foeniculum vulgare, aphid, vegetable oil, ladybug, umbel. |
| Uitgever: |
Environmental Engineering Course / UNIPINHAL (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 67 van 93 gevonden artikelen
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