A field survey of changes in the composition of corn borer populations in Israel

Abstract

A survey of com borer populations in fields of sweet and fodder com showed that Chilo agamemnon (Bles.) was the main pest of com in Israel in 1969 and 1970, after which the poputation size gradually deereased. The population of an0ther pest, Sesamia cretica (Led.), also decreased, probably due to reductions in the sorghum acreage in Israel; the European com borer, Ostrinia nubilalis (Hb.), was found in very small numbers. On the other hand, Sesamia nonagrioides (Lef.) has gradually increased in number and is now the rnain pest attacking all corn varieties in Israel. These changes are believed to be due to alterations in agricultural pracrices -such as irrigation, to changes in the acreage of the host plants, and to the introduction of new varieties.

Antixenosis and larval and adult dispersal in the Mediterranean corn borer, Sesamia nonagrioides, in relation to Bt maize

“…The Mediterranean corn borer, Sesamia nonagrioides Lef ebvre (Lepidoptera: Noctuidae) is the most important pest of maize, Zea mays L. (Poaceae), in several regions of the Mediterranean (Anglade, 1972;Melamed-Madjar & Tam, 1980;Castañera, 1986;Albajes et al, 2002) and one of the main targets in this area for transgenic maize expressing Bacillus thuringiensis Berliner (Bt) toxins (Eizaguirre et al, 2006;Castañera et al, 2010). Two events of Bt maize have been grown in Spain since 1998 (Castañera et al, 2010), i.e., 176 CB (a Syngenta trademark) and MON810 (a Monsanto trademark).…”

Mean Generation Analysis of the Damage caused by <I>Sesamia nonagrioides</I> (Lepidoptera: Noctuidae) and <I>Ostrinia nubilalis</I> (Lepidoptera: Crambidae) in Sweet Corn Ears

“…In Spain and other Mediterranean countries, the principal corn borer is Sesamia nonagrioides (Lefebvre) (Stavrakis 1967, Anglade 1972, Melamed-Madjar and Tam 1980, Larue 1984, Cordero et al 1998. Ostrinia nubilalis (Hü bner) is also an important pest of sweet corn.…”

Susceptibility of Spanish Populations of the Corn BorersSesamia nonagrioides(Lepidoptera: Noctuidae) andOstrinia nubilalis(Lepidoptera: Crambidae) to aBacillus thuringiensisEndotoxin

“…Sesamia nonagrioides (Lefebvre), sometimes referred to as the Mediterranean corn borer, is one of the most damaging pests of corn in Spain (Castañ era 1986) and other Mediterranean countries (Anglade 1972, Melamed-Madjar andTam 1980).…”