Eggs of Empoasca kraemeri hatched in and days and nymphal development took and days under screenhouse and laboratory. Ovipositional Resistance to Empoasca kraemeri (Homoptera: Cicadellidae) Phaseouts vulgaris L., to the leafhopper Empoasca kraemeri Ross and Moore. Empoasca species leafhoppers are a major insect pest of common bean, Phaseolus vulgaris that cause significant economic losses in both tropical (E. kraemeri).
|Published (Last):||2 December 2018|
|PDF File Size:||15.68 Mb|
|ePub File Size:||3.21 Mb|
|Price:||Free* [*Free Regsitration Required]|
One of the greatest global challenges is to feed the ever-increasing world population.
Tolerant genotypes, as classified by the CIAT yield index, showed significantly more unprotected yield and lower hopperburn scores than the susceptible control. If you originally registered with a username please use that to sign in. These two compounds played a role in attracting leafhoppers. Comparison of Insecticide Susceptibilities of Empoasca vitis Hemiptera: The assembled unigenes were then annotated using various databases.
Importation of live nursery kraeneri, like Dracaena marginata Lamoureux Ruscaceaecan provide a significant pathway for the entry of foliar pests from overseas into the United States. Pygofer ventral appendage vestiture smooth. Male anteclypeus flat or slightly convex. Subgenital plate dorsomedial surface without conspicuous sensilla. Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica.
Front femur row AV with 1 basal seta distinctly enlarged.
Empoasca (Empoasca) kraemeri Ross & Moore, 1957
In our first study, we examined the rationale behind size restrictions on Dracaena cuttings imported into the United States from Costa Rica. Forewing brachial cell without black spot distally. Little is known about the behavioral responses of leafhoppers Hemiptera: Face without paired dark dorsal spotswithout median spotwithout median dark brown or black longitudinal stripe.
Most users should sign in empoasda their email address.
InsectaEmpoasca kraemeribeansleafhoppers. Don’t have an account?
Pygofer ventral appendage excavated preapically. In a second study, we estimated monthly abundances of pests in production plots for 1 yr to determine their relationship to rates of interception at U.
Observed heterozygosities were from 0. You do not currently have access to this article.
feijoeiro empoasca kraemeri: Topics by
These results provide valuable information to intelligently select insecticides for IPM programs that are efficacious against E. Transcripts of at least digestion- detoxification- and immune-related putative genes in E. Field background odour should be taken into account when formulating a pest attractant based on plant volatiles. Differential responses of the two leafhopper species to the same weed treatments support hypotheses, suggesting that noncrop plants can alter the abundance of pests through their effects on arthropod host finding and acceptance, as well as their impacts on jraemeri enemies.
Miridae when co-infesting the host plant Nicotiana attenuata Solanaceae with the generalist leafhopper Empoasca sp. The average longevity observed for females and males was: Subgenital plate group D long, fine setae with numerous long, fine setae scattered throughout length of plate.
Coronal suture extended well beyond crown midlength but not onto face.
Adaptation and differentiation of temperate phylogenetic lines from tropical ancestors in Empoasca. Forewing apical cell 4 distinctly tapered near base, MCu ending near posterior end of apical margin. Intercropping is one of the important cultural practices in pest management and is based on the principle of reducing insect pests by increasing the diversity of an ecosystem.
Crosses between tolerant and antixenosis bean lines are recommended as a potential means of increasing overall leafhopper resistance levels. N fertilization increased leaf N concentration in both maple cultivars, albeit to a lesser extent during the second year of the study. Frontotclypeus without orange ellipse. Don’t already have an Oxford Academic account? Plant tolerance empoascw herbivory is a key approach for managing pests.
Empoasca (Empoasca) kraemeri Ross & Moore,
These treatments were selected based on reported effects of specific weed cover on herbivorous insects oraemeri natural enemies, or by their use by growers as a cover crop. Aedeagus dorsal teeth kraemsri. Connective freewell sclerotizedas long as or longer than wide, but not elongate. A baseline survey of the entire production plot was conducted in February, along a 5 by 5 kdaemeri grid to characterize and map initial weed communities of plants, cicadellids, katydids, and armored scales.
Cicadellidae Migration and Severity of Impact. Primers were tested on individuals collected in the southwest of France from the vine plants. Subgenital plate group C macrochaetae with numerous macrochaetae, reaching apex of plate. Empoasca Empoasca angustata nom. Treatments ranged from weed-free to being completely covered with endemic species of weeds.
Immunolocalization indicated that the opsins mainly located in the different regions of rhabdom. Predominant color of dorsum pale green or yellow with few symmetrical cream-colored markings on head and thorax. Eyes in dorsal view narrower than distance between basomedial angles.