In the present study, induction of diapause only occurred in a periodic environment. European corn borer is thought to have originated in europe, where it is widespread. As little was known about the biology of this parasitoid when reared on o. Gpx and the total amount of free sh groups, while chlorantraniliprole. Categories have been assigned by the eppo secretariat on the basis of available data at the time of entry. A moth, family pyralidae, which is damaging to a wide variety of important food and floral crops.
European corn borer is thought to have originated in europe, where it. To evaluate this effect, cooccurrence of insect and fungal pests on mon 810 maize was studied. Males of each race respond specifically to their conspecific females blend. The european corn borer, ostrinia nubilalis, is a pyralid moth. The body is marked with round dark spots on each body segment. Ten years of mon 810 resistance monitoring of field populations of. Ostrinia nubilalis the european corn borer, ecb is a cosmopolitan pest of maize zea mays l. The european corn borer ostrinia nubilalis is a pest of corn and its presence can affect interstate trade of that commodity. The european corn borer ecb ostrinia nubilalis hubner, 1796, lepidoptera crambidae is one of the most important corn pests zea mays l. The objective of this study was to determine the effect of insecticide treatments on ecb damage, fusarium infection and mycotoxin contamination.
Impact of insecticide treatments on ostrinia nubilalis. The european corn borer ostrinia nubilalis was introduced between 1910 and. Media in category ostrinia nubilalis the following 49 files are in this category, out of 49 total. Early studies of maize zea mays responses to stem boring by european corn borer ecb, ostrinia nubilalis larvae revealed the presence of inducible acidic diterpenoid phytoalexins, termed kauralexins, and increases in. Crambidae 2 larva larvae tend to be light brown or pinkish gray in color dorsally, with a brown to black head capsule and a yellowish brown thoracic plate. Mar 18, 2016 the european corn borer, ostrinia nubilalis, is the most important pest insect of corn zea maize in germany, other european countries and historically in north america.
Evaluating resistance to bt toxin cry1ab by f2 screen in. Care should be taken to avoid confusion with sesarniu nonugrioides sesano when this species is also present. Surveys are conducted because of the presence of potential host material in wyoming and potential introductions. The all and mexican strains ofsteinernema carpocapsae weiser and the hp88 strain ofheterorhabditis bacteriophora poinar were compared in both dose response assays 5, 50 and 500. Page designed through the cooperative efforts of interagency itis teams.
Ostrinia nubilalis wy cooperative agricultural pest survey. Abstract from 2005 to 2015, ostrinia nubilalis were collected in the most important maize. Selection and genetic analysis of european corn borer ostrinia nubilalis. During 2009, exceptionally high maize ear infestation occurred in juliannamajor hungary. On peach seedlings, injury can range from 2mmdiameter holes in the bark to injuries that cause 10mmdiameter limbs to break under their own weight. Background the european corn borer ecb, ostrinia nubilalis hubner, exists as two separate sex pheromone races. Individuals were fed diets of sugar plus protein fructoseeggagar in all possible combinations and diets with one of three sugars glucoseagar, fructoseagar, sucroseagar.
Almost no deviations from hardy weinberg expectations occurred, and a high stability of allelic distribution was found among samples. Ostrinia furnacalis is a species of moth in the family crambidae, the grass moths. The european corn borer ecb, ostrinia nubilalis lepidoptera. Efficacy of climatic change on the development of two strains of stalk. Gene flow in the european corn borer ostrinia nubilalis. Variation in courtship ultrasounds of three ostrinia moths. Mon 810 maize was developed against ostrinia nubilalis and is suggested to indirectly decrease fusarium spp. Pdf effects of different insecticides on the antioxidative defense. Hosted by the usgs core science analytics and synthesis. Ostrinia nubilalis parasitism and the field abundance of nontarget insects in transgenic bacillus thuringiensis corn zea mays volume 1 issue 1 denis bourguet, josette chaufaux, annie micoud, marc delos, bernard naibo, fany bombarde, gilles marque, nathalie eychenne, carine pagliari. However, in europe only a few reports on naturally occurring biotic mortality factors are available. The larval tunnel, kept relatively free of frass, extends in the pith from the entrance hole almost to the terminal bud and may extend several centimeters below the entrance hole. Sep 07, 2010 ostrinia nubilalis the european corn borer, ecb is a cosmopolitan pest of maize zea mays l. Crambidae poster pdf available march 2017 with 106 reads.
The mature larva is about 1 inch long, whitish to grayish in color. Larvae from corn borer species ostrinia nubilalis and ostrinia furnicalis lepidoptera. Female european corn borer, ostrinia nubilalis, produce and males. As the larvae mature, the become fleshcolored with blackish heads. European corn borer has become a primary target of transgenic bacillus thuringiensis maize bt. Insects free fulltext complete mitogenomic structure and. Repetitive genome elements in a european corn ostrinia. European corn borer moth ostrinia nubilalis hubner, 1796. Egg weight, fecundity, and longevity are increased by adult. To understand mitogenome characteristics and reveal phylogenetic relationships of the genus ostrinia, including several notorious pests of great importance for crops, we sequenced the complete mitogenomes of four species. Sex pheromone of the european corn borer ostrinia nubilalis. T1 evaluating resistance to bt toxin cry1ab by f2 screen in european populations of ostrinia nubilalis lepidoptera. Pdf leaf profile of maize resistance factors to european.
Relationships of helicoverpa armigera, ostrinia nubilalis and. Practical resistance of ostrinia nubilalis lepidoptera. A quarantine is established against the following pest, its hosts and possible carriers. A sex pheromone of the european corn borer, ostrinia nubilalis hubner, was isolated from 10,000 female moths. A 12hr dark period, at a temperature high enough to permit time measurement to occur, is necessary for maximal induction of larval diapause in the european corn borer, ostrinia nubilalis. Ostrinia nubilalis european corn borer pyralis nubilalis. Ostrinia nubilalis an overview sciencedirect topics. European corn borer ostrinia nubilalis hubner insect fact sheet integrated pest management description life cycle injury university of illinois early instars of european corn borers are tiny larvae, approximately 2 to 116 inch long, with translucent white bodies and brown heads. Genetic structure of asian corn borer, ostrinia furnacalis. European corn borer ecb, ostrinia nubilalis hubner, is the main maize pest in central and southern europe and promotes the infection of maize with fusarium spp. Caterpillar of european corn borer ostrinia nubilalis image.
Herbivoreinduced plant responses have been widely described following attack on leaves. The feeding preference of european corn borer larvae for immature whorl tissue of maize was examined by conducting leaf bioassays and quantifying resistance factors along the length of midwhorl leaves from the maize synthetic bs9c4 developed by. The insect occurs in nearly all of the major corngrowing areas of the u. Pdf monitoring and efficacy of selected insecticides for. Dec 28, 2014 ostrinia nubilalis hubner taxonomic placing. Sex pheromone receptor specificity in the european corn borer. First found in north america near boston, massachusetts in 1917, european corn borer, ostrinia nubilalis hubner, now has spread as far west as the rocky mountains in both canada and the united states, and south to the gulf coast states. Ostrinia nubilalis iowa state university digital repository. Crambidae, is an important pest that disturbs the economic yield of egyptian.
Guideline for the efficacy evaluation of insecticides ostrinia nubilalis revised in 1994 1. Caterpillar of european corn borer ostrinia nubilalis. Please consider giving a credit hyperlink to if you use the photos on this site using the attribution code in the below box. The developmental threshold for larvae is about 11c. Populations show genotypebyenvironment variation in voltinism, such that populations with a single generation univoltine are fixed in northern china where growing seasons are short. European corn borer, ostrinia nubilalis hubner insecta. Divergence in behaviour between the european corn borer. Moniliformin and the european corn borer ostrinia nubilalis. The female is pale yellow to light brown, with dark, wavy bands across the darkyellow forewings, length about 1215 mm.
Whole bodies were homogenized with 1,2dlchloroethane. Sign up for the nature briefing newsletter what matters in science, free to your inbox daily. In late spring, usually a few days before the corn female inflorescences appear, the moths lay about 5001500 eggs in masses on the underside of the leaves. Resistance to the european corn borer, ostrinia nubilalis hubner. Broken tassels, collapsed stalks, feeding signs on leaves, and borings in stalks and ears are signs of the presence of european corn borer larvae. European corn borer ostrinia nubilalis induced responses. Repetitive genome elements in a european corn borer, ostrinia nubilalis, bacterial artificial chromosome library were indicated by bacterial artificial chromosome end sequencing and development of sequence tag site markers. Pdf the european corn borer ostrinia nubilalis is one of the most. Evaluation of entomopathogenic nematodes for biocontrol of. Ostrinia nubilalis revised in 1994, eppo bulletin 10. It was described by achille guenee in 1854 and is known by the common name asian corn borer since this species is found in asia and feeds mainly on corn crop. It first appeared after the introduction of maize to western europe, approximately 500 years ago rebourg et al. They correspond to an evaluation of the biological importance of the host plant for the pest concerned, together with the economic importance of this plant for the eppo region.
Did the introduction of maize into europe provide enemy. Ostrinia moth species are ideal for such research purposes because they show remarkable diversity in sex pheromone communication 11. Download fulltext pdf sugars affect oviposition behaviour of european corn borer, ostrinia nubilalis hbn. All structured data from the file and property namespaces is available under the creative commons cc0 license. Notes on taxonomy and nomenclature top of page the genus ostrinia includes 20 species mutuura and munroe, 1970. The european corn borer ostrinia nubilalis, also known as the european corn worm or european highflyer, is a moth of the family crambidae which includes other grass moths. However, chemical control is carried out only in maize for seed production, and in sweet corn. Files are available under licenses specified on their description page. Pdf sex pheromone of the european corn borer ostrinia. Ostrinia nubilalis pyrunuoverview eppo global database. The european corn borer ostrinia nubilalis was introduced into the u.
Mutuura and munroe 1970 provide a full description and identification keys. The study examined the effectiveness of silica content of whorl and leaf sheath tissues in maize, zea mays l. From investigation of some thousands of maize ears, the majority of the. Frequency of hybridization between ostrinia nubilalis eand z. Partial mitochondrial genome sequences of ostrinia nubilalis.
The moths are fairly small, with males having a wingspan of 2026. Crambidae eggs in sweet corn by generalist predators and the impact of alternative foods. Ostrinia nubilalis pyrunuhost plants eppo global database. The present study was designed to explore variation of courtship ultrasounds in three ostrinia moths, o. Similar to ecb, rootworm is an economically important and difficult pest problem in corn production. Pathogens of the european corn borer, ostrinia nubilalis. Here, we report behavioural divergence between the european corn borer ecb, ostrinia nubilalis and its sibling species ostrinia scapulalis. Pdf sugars affect oviposition behaviour of european corn. Crambidae, is the major arthropod pest of corn in croatia. The european corn borer, ostrinia nubilalis, is the most important pest insect of corn zea maize in germany, other european countries and historically in north america.
Divergence in behaviour between the european corn borer, ostrinia. I selection of crop and cultivar, test organisms use any cultivar of maize zeamx. Contact individual photographers for permission to use for any purpose. The early instar larva of european corn borer is dull white with a series of small brown spots and a dark head. It is a pest of grain, particularly corn maize or zea may. Pdf european corn borer, ostrinia nubilalis hubner insecta. Asian corn borer, ostrinia furnacalis guenee, is a severe pest that infests cultivated maize in the major production regions of china. Two experiments were conducted to assess the influence of sugar and protein foods for adult ostrinia nubilalis hubner females on selected reproductive parameters. The moth is found from china to australia, including in java, sulawesi, the philippines, borneo, new guinea, the solomon islands, and micronesia. This thesis is brought to you for free and open access by the iowa state university. Crambidae are pests of agricultural crop plants and cause major crop production losses 16, 17. Ostrinia nubilalis it is found in europe, north america, where it was first reported in 1917, and some areas of northern africa. Help pages, faqs, uniprotkb manual, documents, news archive and biocuration projects. The european corn borer ostrinia nubilalis was introduced between 1910 and 1920 into north america from europe.
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