Common hostorigin combinations for the two most frequently intercepted species of helicoverpa h. Helicoverpa zea has been listed as one of the natural sciences good articles under the good article criteria. Helicoverpa zea, commonly known as the corn earworm, is a species formerly in the genus heliothis in the family noctuidae. In shortrange dispersal, the moths move within the crop and low over the foliage. Helicoverpa zea helizeoverview eppo global database. A seed mixture increases dominance of resistance to bt cotton. In europe, africa, asia, and australia they also call this moth the cotton bollworm, but its a different species, helicoverpa armigera well call it h. Notes on taxonomy and nomenclature top of page the taxonomic situation regarding h. Material and methods fifth instar helicoverpa zea were dissected in 0. The cotton bollworm, corn earworm, or old world african bollworm helicoverpa armigera also known as the scarce bordered straw in the uk, where it is a migrant is a moth, the larvae of which feed on a wide range of plants, including many important cultivated crops. Rapid identification of helicoverpa armigera and helicoverpa. Agronomy free fulltext response of bt and nonbt cottons. Heliothis zea npv indicate that it is virtually innocuous to people, wildlife and other nontarget organisms.
View of effects of timing and insecticide on management of. Complete genome sequences of helicoverpa armigera single. The helicoverpa zea transcriptome was analyzed 24 h after h. Two species of group ii nucleopolyhedroviruses genus alphabaculovirus from helicoverpa species have been designated helicoverpa armigera. Widespread resistance to chemical insecticides has prompted the registration of biopesticides based on baculoviruses baculoviridae.
The larva of the moth helicoverpa zea is a major agricultural pest. At the middle of the catabolic spectrum are papilio polyxenes cyp6b1 and helicoverpa zea cyp6b8 proteins that at 53% identity metabolize xanthotoxin, a naturally occurring toxic furanocoumarin, at 5fold different efficiencies 22. Little effort has been made in the san joaquin or sacramento valleys of california to monitor adult male h. The old world bollworm, helicoverpa armigera hubner, and the corn earworm, h. Pdf helicoverpa armigera, one of the worlds most destructive crop pests, was first documented in brazil in 20. Hindwing whitish with dark gray veins and border, with surrounds whitish patch at midpoint of outermargin. Corn earworm, helicoverpa heliothis zea boddie lepidoptera. Pdf further description of helicoverpa zea lepidoptera. Helicoverpa zea is known by numerous different common names including cotton bollworm or corn earworm, and many others specific to the crop on which it can be found. Developing a monitoring program for helicoverpa zea in california sweet corn janet caprile, farm advisor, university of california cooperative extension, contra costa county, 75 santa barbara rd. Integrated management of helicoverpa armigera in soybean. Helicoverpa heliothis zea applying insecticides based upon the threshold and in conjunction with cultural controls will reduce the number of applications. Know the enemy to manage it better about helicoverpa helicoverpa often called heliothis is a serious pest of southern queensland crops, particularly grain legumes, summer grains and cotton.
The potential distribution of invading helicoverpa armigera. The adult moths of these two pests can be identified to species using morphological characters, although the larvae of corn earworm and owb. Systematics a new synonym of helicoverpa zea boddie and. Diagnosing these two species is difficultadults can only be separated with a complex dissection, and larvae cannot be identified to species using morphology, necessitating the use of geographic origin for identification in most. Corn earworm is found throughout the temperate and subtropical parts of. Oct 29, 2015 recent helicoverpa armigera hubner invasions and subsequent establishment in south america has increased the risk of this species invading north america. Helicoverpa is a genus of moths in the family noctuidae first described by david f. For more multimedia, look at helicoverpa zea on wikimedia commons. Pdf the helicoverpaheliothis complex can cause serious damage to agricultural crops.
Introduction in the northeastern us, sweet corn is attacked regularly by three lepidopterans. Such investigations highlight importance of parasitoids in integrated management of h. Contact individual photographers for permission to use for any purpose. A field study was conducted on the nature and extent of damage of corn earworm, helicoverpa zea boddie in two maize varieties viz. Helicoverpa zea is a mediumsized moth fw length 16 20 mm with a mottled dull ochrebrown to orangebrown forewing with a light terminal area and a pale hindwing with dark veins and dark gray marginal band with light spots near the outer margin that is found in most of the northwest during late summer and fall. Helicoverpa zea, and in developing interactive cartography for regional monitoring of migratory lepidopterans in the northeastern us. Systematics a new synonym of helicoverpa zea boddie. Before his study, both species were includedin heliothisoschenheimer. Usually light, yellowisholive in color, with a dark spot near the center. Suitable for use in organic farming and for ipm where approved for use in that country. Lepidoptera, noctuidae are polyphagous pests of international significance.
They are more common in the northern or coastal regions of eastern australia, particularly in warmer. Developing a monitoring program for helicoverpa zea in. Fruit survival withinseason and atharvest was carefully mapped on. Corn earworm moth helicoverpa zea boddie, 1850 family. Keys about fact sheets glossary larval morphology references. Since it is polyphagous feeds on many different plants during the larval stage, the species has been given many different common names, including the cotton bollworm and the tomato. A complete list of the host and origin data for helicoverpa spp. View and download powerpoint presentations on helicoverpa ppt. Therefore, no additional, environmental fate and residue data are being required.
While helicoverpa armigera is a problem in many parts of the old world. Characteristics of polymorphic microsatellite markers in. We do not use these to store personal information about you. Caterpillars of the corn earworm or cotton bollworm are the major pest of cotton, but can also be problematic in pulses, canola and occasionally cereals. Mainly helicoverpa and heliothis species including the cotton bollworm helicoverpa zea, corn earworm heliothis zea and tobacco budworm heliothis virescens fabricius target host. Helicoverpa armigera is generally regarded as the more serious pest because of its greater capacity to develop resistance to insecticides, broader host range, and persistence in cropping areas from year to year. They are capable of interbreeding to produce fertile offspring. Gut transcription in helicoverpa zea is dynamically altered in response to baculovirus infection jeffrey e. It is known to survive as far north as about 40 degrees north latitude, or about kansas, ohio, virginia, and southern new jersey, depending on the. Noctuidae are allopatric species and occur in important agricultural crops. If it no longer meets these criteria, you can reassess it.
Distribution and economic importance of heliothis virescens and helicoverpa zea in north, central, and south america and of their natural enemies and host plants. Gut transcription in helicoverpa zea is dynamically altered. In europe, asia, africa, and australia the species is helicoverpa armigera. Rapid identification of invasive species is crucial for deploying management strategies to prevent establishment. Helicoverpa species valent biosciences biorational crop. Because helicoverpa is a worldwide genus with many polyphagous species, larvae can be intercepted from nearly any origin on most any host. This noctuid is considered a major threat to corn, and occasionally it attacks other field and horticultural crops, including alfalfa, cotton, tobacco, peanuts, sorghum, and sunflower. Helicoverpa species valent biosciences biorational.
Corn earworm is found throughout north america except for northern canada and alaska. Insects of hawaii a manual of the insects of the hawaiian islands, including enumeration of the species and notes of the origin, distribution, hosts, parasites, etc. However, adult moths are highly dispersive and migrate north. Hindwing whitish with dark gray veins and border, with surrounds whitish patch at midpoint of. Morphological similarities make differentiation of h. Find, read and cite all the research you need on researchgate. This type of dispersal is mostly independent of wind currents. Related to the nudiviruses gryllus bimaculatus nudivirus and oryctes. Further description of helicoverpa zea lepidoptera. Heliothis zea virus 1 also known as heliothis zea nudivirus 1. Helicoverpa zea inoculated with enterobacter ludwigii secreted more glucose oxidase gox proteins onto feeding sites of tomato leaves. Corn earworm does not overwinter successfully in the northern states beyond 40 degrees north latitude. Fruit survival withinseason and atharvest was carefully mapped on individual plants. Tomato and pepper fields should not be planted near or adjacent to postsilking corn fields.
General information about helicoverpa zea helize eppo global database. In the eastern united states, corn earworm does not normally overwinter successfully in the northern states. Noctuidae 3 feeding is a prerequisite for high levels of egg production. Noctuidae, although the virus can also infect a number of other insect lepidopteran cell lines. Bt resistance implications for helicoverpa zea lepidoptera. Setal maps helicoverpa armigera setal map click here to download a fullsize printable pdf of this larval setal map helicoverpa zea setal map click here to download a fullsize printable pdf of this larval setal map lepintercept an identification resource for intercepted lepidoptera larvae. The corn earworm helicoverpa zea boddie and the old world bollworm helicoverpa armigera hubner lepidoptera. Related to the nudiviruses gryllus bimaculatus nudivirus and oryctes rhinoceros nudivirus ornv, the hzv1.
Heliothis stombleri okumura and bauer is a new syno. Media in category helicoverpa zea the following 32 files are in this category, out of 32 total. Pdf adaptive introgression across semipermeable species. Corn earworm, helicoverpa zea, is found throughout the united states us except alaska. Queensland the smart state understanding helicoverpa ecology and biology in southern queensland. Mitochondrial dna analysis of field populations of. Forewing yellowish tan with variable reddish brown, olive green, or gray markings and shading. Gut transcription in helicoverpa zea is dynamically.
This polyphagous moth is one of the principal enemies of cotton and maize. Larva of corn earworm, helicoverpa zea boddie, darker form. Maps on insecticide resistance spread generated will support strategic. Manejo integrado del gusano elotero helicoverpa zea. Heliothis zea npv caused no adverse effects in any acute oral, dermal, inhalation or intravenous toxicity test. Significant differential regulation of 1,9 putative genes p helicoverpa zea is a seasonal, nocturnal migrant, and adults disperse, weather permitting, when there are poor reproductive conditions. Earlymaturing and fullseason bt and nonbt cottons were exposed to high densities of tobacco budworm heliothis virescens f. Proceedings of the workshop on the biological control of heliothis. Pdf the spread of helicoverpa armigera lepidoptera. Not surprisingly, many of these hosts are crops, including many field crops.
Characteristics of adult male genitalia and nucleotide sequence. New synonym of helicoverpa zea boddie and differentiation of. Corn earworm helicoverpa zea insect fact sheet integrated pest management description life cycle injury corn earworm larva corn earworm adult corn earworm eggs university of illinois the corn earworm, also known as the tomato fruitworm and the cotton bollworm, feeds on a number of crops including corn, tomato, cotton. A multiplex realtime pcr assay to diagnose and separate. Areawide pheromone trapping of helicoverpa sea heliothis. Hznv1 was isolated as a persistent virus of an insect cell line derived from helicoverpa zea lepidoptera. Find powerpoint presentations and slides using the power of, find free presentations research about helicoverpa ppt. Corn earworm may also be called bollworm or tomato fruitworm.