machaeralis Walker (Lepidoptera: Crambidae), a serious and pernicious pest of this tree species (Nair et al.
Preliminary observations on two species of Beauveria attacking the corn borer, Pyrausta
The preliminary bioassay results indicated that some of the newly synthesized compounds showed better insecticidal activities against Pyrausta
nubilalis and Heliothis armigera than that of the control trans-prallethrin chloride.
Prior to the late 1990s, the European corn borer (Pyrausta
nubilalis) was one of the most important insect pests on corn (Figure 15-17).
European corn borer (Pyrausta
nubilalis HBN.) in relation to shank, stalk, and ear rots of corn.
Cold hardiness in the European corn borer, Pyrausta
The European corn borer, Ostrinia nubialis, and its microsporidian pathogen, Nosema pyrausta
: a model of intermediate complexity.
- Two lepidoptera, Manduca sexta and Pyrausta
nubilalis, and the dermestid beetle Trogoderma glabrum exhibit wide variation in the growth at ecdysis and the number of juvenile molts while the maximum duration of the intermolt interval is canalized (Beck 1971a,b, 1972, 1973; Nijhout 1975; Nijhout and Williams [TABULAR DATA FOR TABLE 2 OMITTED] 1974a,b; Safranek and Williams 1984a,b).
Among these are borer-killing insects and microbes such as Beauveria bassiana and Nosema pyrausta
that kill borers.
Arriving in Urbana-Champaign in 1985, Onstad began developing a model to simulate the life cycle of the corn borer and its susceptibility to Nosema pyrausta
, a single-cell microsporidium.
These species were: Arctiidae- Halysidota tesselaris (Smith); Crambidae- Desmia funeralis (Hbn.), Diaphania spp., Hymenia perspectalis (Huber), Pyrausta
tyralis (Guenee), Samea sp., Syngamia florella (Stoll); Gellichiidae- Anacampsis coverdalella Kearfott; Geometridae- Disclisioprocta stellata (Guenee); Hesperidae- Epargyreus clarus Cramer, Lerema accius (Smith); Noctuidae-Ctenoplusia oxygramma (Geyer), Chrysodeixis includens Walker, Marimatha nigrofimbria (Gn.), Spodoptera spp.; Zygaenidae- Harrisina americana (Guerin-Meneville).