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Anais da Sociedade Entomológica do Brasil

Print version ISSN 0301-8059

Abstract

ZURITA V., Yuri A.; ANJOS, Norivaldo dos  and  WAQUIL, José M.. Biological aspects of Dalbulus maidis (DeLong & Wolcott) (Hemiptera: Cicadellidae) on maize (Zea mays L.) hybrids. An. Soc. Entomol. Bras. [online]. 2000, vol.29, n.2, pp. 347-352. ISSN 0301-8059.  http://dx.doi.org/10.1590/S0301-80592000000200017.

Aspects of the biology of the corn leafhopper, Dalbulus maidis (DeLong & Wolcott), were studied on six diverse maize hybrids regarding their resistance to this insect specie, selected from field trials. The experiment was conducted in the greenhouse at 26.0 ±4.9°C and 78.8±6.8% of RH. Using a leaf cage, ten individual nymphs per hybrid were daily observed to record the number of instar and developmental time. Each developed adult was evaluated regarding the body length, abdomen width and distance between the compound eyes. Among the hybrids tested, only Pioneer 3027 delayed significantly the developmental period of the nymphs in three days. There were no significant differences among the hybrids concerning number of instar and adult body size.

Keywords : Insecta; corn leafhopper; maize resistance; insect vector.

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