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Sonia Maria Noemberg LAZZARI ; Flavio Antonio LAZZARI ; Airton Rodrigues PINTO JUNIOR ;Scientia Agraria 2008, 9 (1)

Autor: Fabiane Cristina CERUTI

Fuente: http://www.redalyc.org/


Introducción



Scientia Agraria ISSN: 1519-1125 sciagr@ufpr.br Universidade Federal do Paraná Brasil CERUTI, Fabiane Cristina; LAZZARI, Sonia Maria Noemberg; LAZZARI, Flavio Antonio; Rodrigues PINTO JUNIOR, Airton EFFICACY OF DIATOMACEOUS EARTH AND TEMPERATURE TO CONTROL THE MAIZE WEEVIL IN STORED MAIZE Scientia Agraria, vol.
9, núm.
1, 2008, pp.
73-78 Universidade Federal do Paraná Paraná, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=99516828011 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative CERUTI, F.C.
et al.
Efficacy of diatomaceous earth and temperature. EFFICACY OF DIATOMACEOUS EARTH AND TEMPERATURE TO CONTROL THE MAIZE WEEVIL IN STORED MAIZE EFICÁCIA DE TERRA DE DIATOMÁCEA E TEMPERATURA PARA O CONTROLE DO GORGULHO-DO-MILHO EM MILHO ARMAZENADO Fabiane Cristina CERUTI¹ Sonia Maria Noemberg LAZZARI² Flavio Antonio LAZZARI³ Airton Rodrigues PINTO JUNIOR4 ABSTRACT Treatment with diatomaceous earth (DE) is an efficient insect control technique in integrated pest management programs of stored grain.
Its main advantages are: low toxicity to mammals and long lasting efficacy.
The objective of this research was to evaluate the efficacy of DE under different doses and temperatures to control Sitophilus zeamais in stored maize.
In vials with 100 g of clean and dry corn kernels, 30 non-sexed 7-14 day-old adults of S.
zeamais were submitted to the following treatments in three replicates: DE (Keepdry®) at 500, 750 and 1000 mg kg-1, at 15, 25 and 30 °C.
The mortality was evaluated from the 1st to the 28th day.
After this period, the adults were removed and the progeny was kept until the 56th day, when the insects were counted and the grain moisture content evaluated.
The effect of temperature on S.
zeamais mortality was s...





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