Mureşanu, Felicia and Has, Voichiţa and Ignea, Mircea (2013): Some elements of economic efficiency of biological treatment to combat corn borer (Ostrinia Nubilalis Hbn) in the conditions of Transylvania. Published in: AGRARIAN ECONOMY AND RURAL DEVELOPMENT - REALITIES AND PERSPECTIVES FOR ROMANIA , Vol. 4, No. ISSN – 2285-6803; ISSN – L – 2285-6803 (21 June 2013): pp. 118-122.
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Abstract
The paper is a synthesis of the results obtained during 1998-2010, on the effectiveness of biological (Trichogramma spp.) and chemical treatments (different insecticides) in reducing the attack of Ostrinia nubilalis Hbn. to the corn genotypes created at The Agricultural Research and Development Station Turda. Among Trichogramma species used, a good efficacy in reducing attack of Ostrinia nubilalis was presented by T. maidis (80.0 %) and T. evanescens (78.0 %) - 3 applications. The applications with these species of Trichogramma to maize crops should be done at a distance of 6-7 m / row and between rows, in order to allow a uniform dispersion and a high degree of parasitizing eggs of corn borer. The biological treatments with T. maidis made to corn hybrids created at SCDA Turda, had reduced significantly the corn borer attack, recording production increases from 4.0 to 11.0 %. The basic conditions for achieving high efficiency in reducing the attack of Ostrinia nubilalis, with Trichogramma spp. are: conducting applications at optimal moment and ensuring optimum densities correlated with the density of the pest and chemicals used (Decis Mega 50 EW, Calypso 480 SC) had reduced the attack frequency significantly and very significantly, their efficacy in this regard was between 87-90 %. From the analysis performed through the economic effect of biological and chemical treatments to combat corn borer (Ostrinia nubilalis) resulted certain economic advantages using the method of biological control with Trichogramma spp., both in terms of reducing costs per hectare and the production growth produced. Thus, the species of this entomophage used, Trichogramma spp., constitutes in a way a “new generation of biological insecticides'', that does not pollute and is used to combat the over 500 species of pests in the order Lepidoptera.
Item Type: | MPRA Paper |
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Original Title: | Some elements of economic efficiency of biological treatment to combat corn borer (Ostrinia Nubilalis Hbn) in the conditions of Transylvania |
English Title: | Some elements of economic efficiency of biological treatment to combat corn borer (Ostrinia Nubilalis Hbn) in the conditions of Transylvania |
Language: | English |
Keywords: | Trichogramma spp., Ostrinianubilalis Hbn., biological treatments, economic efficiency |
Subjects: | Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q1 - Agriculture Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q1 - Agriculture > Q14 - Agricultural Finance |
Item ID: | 53496 |
Depositing User: | Users 40727 not found. |
Date Deposited: | 08 Feb 2014 09:39 |
Last Modified: | 29 Sep 2019 02:48 |
References: | FURLAN, L.,GIROLAMI, V., PAVONI,A.,BIANCHI,M.(2001).Ostrinia nubilalis population levels in North Eastern Italy: long period data and practical considerations. Proceedings of the XXI IWGO Conference and of the VIII DSM,(21),365,Venice, Italy. MUREŞAN Felicia.( 2000). Investigations the efficiency of biological and chemical methods against the pests of maize with reference to ECB (Ostrinia nubilalis Hbn.) in Western of Transylvania. Proceedings of the VII the European Congress of qaaDSM, (8), 335, Venice, Italy. ÖZTEMIZ, S., KORNOŞOR,S.( 2001). The effect of different irrigation system on inundative release of T. evanescens Westwood (Hymenoptera: Trichogrammatidae) against O. nubilalis Hubner (Lepidoptera: Pyralidae) in the Mediterranean Region of Turkey. Proceedings of the XXI IWGO Conference and of the VIII DSM, (8),333, Venice, Italy. PONS, X., EIZAGUIRE, M.( 2000). IPM on maize and winter cereals in the North – Eastern Spain. Proceedings of the VII The European Congress of Entomology,97), 202, Salonic, Greece. VOS, J.(2004). IPM knowledge transfer-current developments and needs in farmer training for IPM implementation. Abstract-IWGO and DSM Conference, (2),64, Engelberg, Switzerland. |
URI: | https://mpra.ub.uni-muenchen.de/id/eprint/53496 |