Regulation of the larval transcriptome of diatraea. Resistance in maize hybrids and inbreds to firstgeneration southwestern corn borer, diatraea grandiosella dyar and sugarcane borer, diatraea saccharalis fabricius. Because the species of diatraea are found in florida but not in cali. Aflatoxins can be found at dangerously high levels and can readily contaminate preharvest maize zea mays l. Quantitative trait loci conferring resistance to fall.
Twenty five snps were significantly associated with three resistance traits. In this study, selected anatomical characters of inner whorl tissue of several susceptible and resistant maize. In addition, the sd1 pinacula extends to middle of the spiracle on a36 and the paraproctal setae are only half as long as sv1 on a9. Spodoptera frugiperda, sugarcane borer diatraea saccharalis, and southwestern corn borer diatraea grandiosella. Phytosanitary irradiation of diatraea saccharalis, d. Genuity smartstax rib complete corn blend has 5% refuge seed in every bag. Susceptibility of brazilian populations of diatraea saccharalis to. Some species parasitize caterpillars of species considered as pests. Pdf identification of two components of the female sex. An diatraea in nahilalakip ha familia nga crambidae. Pesticidal proteins exhibiting toxic activity against lepidopteran pest species are disclosed, and include, but are not limited to, tic4472, tic4472pl, tic1425, tic26, and tic26pl. Diatraea grandiosella 0653 cry1f field corn chlorpyrifos use in arizona and new mexico. Corn borers are considered to be the second most important complex of insect pests in north america, second only to the corn rootworm complex.
In bioassays, strains hd3, hd551, gm7, gm10, and gm34 caused more than 50% mortality with a. Feb 17, 2016 the genus diatraea guilding is one of the most economically important groups of moths in the western hemisphere. Dispersal of adult diatraea grandiosella lepidoptera. Laboratory studies were conducted to evaluate the efficacy of neem, azadirachta indica against corn earworm cew, heliocoverpa zea fall armyworm faw, spodoptera frugiperda sugarcane borer scb, diatraea saccharalis southwestern corn borer swcb, diatraea grandiosella maize weevil mw, sitophilus zeamais and larger grain borer lgb, prostephanus truncatus. Unitedtes environenta protection l ncy notify affected parties e. Novel toxicity of native and hd bacillus thuringiensis. Assessing resistance of sugarcane varieties to sugarcane.
The tools used to subdue the wasps hosts interfere directly with host transcription activity. It is capable of entering diapause in its larva stage and under. The southwestern corn borer, diatraea grandiosella. During the growing season, this caterpillar has a white abdomen with conspicuous dark brown or black spots. A novel vacuumligation technique was developed to isolate whole pgs from the hemocoel of laststage nondiapause larvae. In this study, we investigated resistance traits to the sugarcane borer diatraea saccharalis fab. Laboratory tests with lepidoptera to assess nontarget. Aflatoxin accumulation in bt and nonbt maize testcrosses author.
Nutritional requirements of southwestern corn borer, diatrea grandiosella. Recent developments in scientific plant breeding have resulted from discoveries in molecular and cellular biology in the second half of the 20th century that laid the foundation for the development of genetically engineered plants. It is capable of entering diapause in its larva stage and under the conditions of a precise photoperiod. The function and fine structure of the larval prothoracic glands pgs of the southwestern corn borer, diatraea grandiosella dyar, were examined. Based on information presented in these reports, the agency concluded that the following were risk factors of resistance in these cases.
Pyralidae is a pest that causes great economic losses to sugarcane producers in mexico. Flora species species unique identifier code commercial name transformation event code further information brief description countries which approved the commercial release. In this study, we performed a genomewide association study gwas to identify snps associated with resistance to mediterranean corn borer in a maize diversity panel using a set of more than 240,000 snps. In thailand, this parasitoid species is considered to be one of the most effective parasitoids for biological control of sugarcane moth borers suasaard and. Agrodatabase42 pathogens taxonomyinsectalepidoptera. Citations for ineffectiveness ratings in the handy bt. The dependency of the southwestern corn borer, diatraea grandiosella dyar, on dietary ascorbic acid was investigated. Metamorphic changes in fat body proteins of the southwestern corn. Apolipophoriniii was isolated from the lipophorinfree fraction of larval plasma of the southwestern corn borer, diatraea grandiosella, because significant amounts of apolipophoriniii were found to be present in the hemolymph not associated with lipophorin. The smartweed borer, ostrinia obumbratalis, and southwestern corn borer, diatraea grandiosella, were used for comparisons.
During the winter the southwestern corn borer becomes pale yellow with very faint spots. Anatomical characteristics of maize resistant to leaf. Energy cane and sugarcane are genetically similar, but due to differences in plant growth, morphology and fiber content, it is important to understand sugarcane borer, diatraea saccharalis f. Nutritional requirements of southwestern corn borer.
Read diapause of the southwestern corn borer, diatraea grandiosella. Susceptibility of brazilian populations of diatraea. Frontiers mapping quantitative trait loci associated with. Direct evaluation of natural enemies of the southwestern. Available formats pdf please select a format to send. Likewise, a bt corn registrant reported resistance for the southwestern corn borer diatraea grandiosella in resistance monitoring reports to the united states environmental protection agency us epa in 2016. Dispersal of the southwestern corn borer, diatraea grandiosella dyar, was examined by release and recapture of dyemarked adults and by. Like most moths, the southwestern corn borer undergoes complete metamorphosis developing as an egg, larva caterpillar, pupa and adult. Pdf dispersal of adult diatraea grandiosella lepidoptera. Keys about fact sheets glossary larval morphology references.
An experiment was conducted in 198586 to compare storage of diapausing larvae in polyethylene carboys buried underground with storage in an environmental chamber held at 10 standard procedure for 4 and 6 months. Quantitative trait loci conferring resistance to fall armyworm and southwestern corn borer leaf feeding damage author. Gaining a better understanding of the effects of these microorganisms will help in the development of successful microbial control strategies against stem borers that attack sugarcane plants. The southwestern corn borer, diatraea grandiosella dyar lepidoptera. Nutritional requirements of southwestern corn borer, diatrea grandiosella article in entomologia experimentalis et applicata 151. Demetra vlachos senior regulatory affairs manager syngenta seeds, inc. Characteristics of larvae of the southwestern corn borer. F2 screen for resistance to a bacillus thuringiensismaize.
Corn borers are considered to be the second most important complex of corn borers are considered to be the second most important complex of insect pests in north america, second only to the corn rootworm complex. Crambidae and its implications for corn borer resistance management in bacillus thuringiensis maize jawwad a. Investigation of plant factors and infestation rates to better discriminate stalk damage by the sugarcane borer in. This article relating to the moth tribe chiloini is a stub. The mechanisms of resistance are larval antibiosis and nonpreference. Predation of corn borer eggs was uncommon and insignificant. Responses of rice minicore collection accessions to damage by. Morphological and molecular characterization of brazilian. Ms analysis of pheromone gland extracts of sugarcane borer, diatraea saccharalis, revealed two antennally active. As many transgenic bt maize events are potentially harmful to the larvae of butterflies and moths see above, these applications require the specific assessment of effects on nontarget lepidoptera. Susceptibility of fieldcollected populations of the southwestern corn borer, diatraea grandiosella, to bacillus thuringiensis. An illustrated guide to the identification of the known. The frontal pores are well below a line connecting the f1 setae in most d.
Bt corn registrants are required to submit annual resistance monitoring reports for the following. More particularly, the present invention relates to plants such as crop plants genetically modified to produce at least two pesticidal or pestistatic agents which in at least one agent is a serine proteinase inhibitor or precursor thereof from the solanaceaefamily and at. Aflatoxins are carcinogenic and toxic compounds produced principally by fungal species aspergillus flavus link. The moving wall represents the time period between the last issue available in jstor and the most recently published issue of a journal.
The edge of the range of the southwestern corn borer, diatraea grandiosella dyar, its characteristics and factors determining its location. Diatraea grandiosella 0653 cry1f field corn chlorpyrifos. Crambidae reared under 2 photoperiods were found to have a. All of the bt proteins the cry proteins are expressed during all growth stages of the corn plant, protecting smartstax corn hybrids from insects from the time of plant emergence. The southwestern corn borer, diatraea grandiosella, is a moth belonging to the suborder heterocera. The genus diatraea guilding is one of the most economically important groups of moths in the western hemisphere. The larvae are stem borers that feed on species of poaceae, or grasses, such as sugarcane, corn, rice, and sorghum, as well as many other. Effects of neem, azadirachta indica on six species of. Pdf resistance in maize hybrids and inbreds to first. Pdf dispersal of the southwestern corn borer, diatraea grandiosella dyar, was examined by release and recapture of dyemarked adults and by capture of. Pdf changes in haemolymph juvenile hormone jh concentrations of larvae of the southwestern corn borer, diatraea grandiosella, were used to estimate.
The southwestern corn borer diatraea grandiosella dyar is an important pest of maize in many areas of the usa. L820 product name southwestern corn borer lure september 2015 scientific name diatraea grandiosella page 2 of 4 4. That means no more calculating or planting a separate, structured refuge. How it works the introduction of the attribute ii trait stack continues the syngenta tradition of providing highperformance traits to sweet corn growers, and now it has the added power of vip3a a. Ramaswamy department of entomology, kansas state university, manhattan, ks 66506. Deckle 1976 used the paraproct setae to separate d. Field key to larvae in corn tom royer extension entomologist richard grantham director, plant disease and insect diagnostics laboratory don c. Genetic similarity among pheromone and voltinism races of. The sugarcane borer moth, diatraea saccharalis, is one of the most important pests of sugarcane and maize crops in the western hemisphere.
Effects of thermophotoperiod on induction and termination of. The spinneret of diatraea appears to have microsetae at the tip but the distribution of this character is unknown. Pathogens associated with sugarcane borers, diatraea spp. Crambidae is one of the most important pests of sugarcane in brazil and is widely distributed in. Growth and development of the southwestern corn borer, diatraea. Maize inbred lines with resistance to leaf feeding by larvae of diatraea grandiosella and spodoptera frugiperda have been released. Sources of resistance to aflatoxin accumulation in maize have been identified. Ascorbic acid had a neutral effect on larval feeding behavior. Orius insidiosus say and spiders were the most abundant predators on corn plants. However, the current susceptibility of brazilian populations of the sugarcane borer to bt toxins is unknown. Underground storage of diapausing southwestern corn borer. January 16, 2010 the dow chemical company page 2 of 10 modes of action for control of aboveground lepidoptera pests and two modes of action for. The effect of carbohydrates on feeding behaviour and growth and development of the southwestern corn borer, diatraea grandiosella, was examined.
Citations for resistance ratings in the handy bt trait table. The southwestern corn borer was reared on a meridic diet containing wheat germ and wheat germ oil as its only plant adjuvants. Identification of diatraea immatures is risky and tentative in mexico riley and solis 2005 and does not always work for field collected larvae from venezuela vargas. Crambidae, infests corn, sorghum, sugarcane, and some other grasses. Resistance of sugarcane cultivars to diatraea saccharalis scielo. Direct evaluation of natural enemies of the southwestern corn. Frequency of alleles conferring resistance to bacillus thuringiensis maize in louisiana populations of the southwestern corn borer. Apr 04, 2020 cotesia flavipes pdf cotesia is a genus of braconid wasps. So far, a range of transgenic bt maize events targeting lepidoptera pests have been submitted for cultivation in europe. Crambidae in the leaves and stalks of six sugarcane cultivars in a series of greenhouse and laboratory assays. Adult sugarcane borer, diatraea saccharalis fabricius. Cotesia flavipes pdf cotesia is a genus of braconid wasps. Antibiosis and tolerance to fall armyworm, spodoptera frugiperda j.
Population trends of sugarcane moth borers and their. Effects of thermophotoperiod on induction and termination of hibernation in chilo partellus swinhoe volume 107 issue 3 m. Field key to larvae in corn oklahoma state university. Two methods for storing diapausing southwestern corn borer, diatraea grandiosella dyar, larvae during winter and spring were evaluated. Aflatoxin accumulation in bt and nonbt maize testcrosses pubag.
Frontiers mapping quantitative trait loci associated. The objective of this paper was to analyze information related to entomopathogenicassociated diatraea spp. Citations for ineffectiveness ratings in the handy bt trait table. The present invention relates generally to a multifaceted approach to the control of plant pathogens including plant pests.
In order to obtain alternatives for control of this pest, several bacillus thuringiensis strains native and from the howard dulmage collection were tested. Mandible lacking setae on the mesothorax passoa 1985. Crambidae article pdf available in journal of applied entomology 63. Environmental regulation of the larval diapause of the southwestern corn borer, diatraea grandiosella dyarlepidoptera. All were raised on diet using the methods of martinez et al. All the life stages of the mexican insects were found to be larger or heavier, or both, than were those of the missouri insects. Diatraea is a genus of moths of the family crambidae species.
Growth and development are regulated by juvenile hormones. A feeding behavioural biossay based on establishment of first stage larvae on test or control stations within 24 hr was employed. Developmental changes in the fat body proteins of the southwestern corn borer, diatraea grandiosella, were studied from the beginning of the fifth instar to the. Read environmental and genetic control of the larval diapause of the southwestern corn borer, diatraea grandiosella, physiological entomology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
The results of the morphological traits of the rice plant, response of the plant. Arnold retired survey entomologist this key is designed to serve as a guide to identification of the more typical larvae of the common insect species found in oklahoma corn fields during the mid and. The larvae are stem borers that feed on species of poaceae, or grasses, such as sugarcane, corn, rice, and sorghum, as well as many other native grasses. Ecology and population biology dispersal of adult diatraea grandiosella lepidoptera. Smith, southwestern corn borer, diatraea grandiosella dyar and sugarcane borer, diatraea saccharalis fabricius in selected maize hybrids and varieties. Pdf hormonal control of larval diapause and metamorphosis of. Characteristics of apolipophoriniii of the southwestern corn. Koinobiont endoparasitoid wasps regulate the hosts physiology to their own benefit during their growth and development, using maternal, immature andor derivedtissue weaponry. It is similar in appearance to the european corn borer, but the latter has lighter spots on a browner background. January 16, 2010 the dow chemical company page 4 of 10 were isolated.
Identification of two components of the female sex pheromone of the sugarcane. Crambidae is the major pest of sugarcane in brazil causing direct and indirect damage. In rare instances, a publisher has elected to have a zero moving wall, so their current issues are available. The nuclear ribosomal internal transcribed spacer 1 its1 region. The fatty acids of the triacylglycerol reserves in the fat body and of the diacylglycerol of lipophorin in the hemolymph of non. The effect of natural enemies on survival of southwestern corn borer, diatraea grandiosella dyar, eggs and larvae was measured in texas high plains corn using exclusion cages. It occurs throughout the mississippi river valley as far north as nebraska and indiana, down into mexico and as far west as arizona. Wo 2007006079 a1 management of plant pathogens the lens. Diatraea saccharalis, the sugarcane borer, is a species of moth of the family crambidae.
The development of transgenic sugarcane varieties expressing. Utilization of fat body and haemolymph reserves, entomologia experimentalis et applicata on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Hallman, jesusa crisostomo legaspi, darmawi darmawi 182185 pdf effect of gamma irradiation of gravid tetranychus desertorum, t. Bacillus thuringiensis bt toxin genes against the sugarcane borer. Biology of sugarcane borer is described by holloway et al. Crambidae in illinois, usa alleyne and wiedenmann, 2001. Diatraea saccharalis history of colonization in the americas. White paper on resistance in lepidopteran pests of. Botanigard es uses beauveria bassiana, a beneficial fungus, to target and control a wide variety of softbodied insects in greenhouse, field and nursery crops such as whiteflies, thrips, aphids, psyllids, mealybugs, scarab beetles and weevils. Diatraea grandiosella and the pink borer sesamia cretica brazil, canada, indonesia, japan, philippine, usa, south africa. Morphological and molecular characterization of brazilian populations of diatraea saccharalis fabricius, 1794 lepidoptera. Download csv file this work is licensed under a creative commons attributionnoncommercialsharealike 3.