A study of the leafhopper genusCirculiferZakhvatkin (Homoptera, Cicadellidae)
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چکیده
منابع مشابه
Glandular-haired alfalfa resistance to potato leafhopper (Homoptera: Cicadellidae) and hopperburn: development of resistance indices.
Eight proprietary genotypes of glandular-haired alfalfa, Medicago sativa L., supplied by two different companies, were compared for the degree and types of resistance to the potato leafhopper, Ernpoasca fabae (Harris), and hopperburn. A tube cage no-choice bioassay was developed to test leafhopper mortality, feeding, settling preferences, severity of hopperburn symptoms (in this case, defined a...
متن کاملManagement of corn leafhopper (Homoptera: Cicadellidae) and corn stunt disease in sweet corn using reflective mulch.
Plastic reflective mulches significantly reduced populations of corn leafhopper, Dalbulus maidis (DeLong & Wolcott), adults and the incidence of corn stunt disease caused by Spiroplasma kunkelii (CSS) in late planted sweet corn (Zea mays L.). The reflective mulches were more effective than were either foliar or soil applied insecticides in managing both the leafhopper and the pathogen it transm...
متن کاملPLANTÐINSECT INTERACTIONS Patterns of Starch Accumulation in Alfalfa Subsequent to Potato Leafhopper (Homoptera: Cicadellidae) Injury
Patterns of starch accumulation in alfalfa,Medicago sativa L., were studied in response to injury causedbypotato leafhopper,Empoasca fabae (Harris).Using image analysis of iodine-stained leaf tissues, we compared lightness scores of leaves from leafhopper-injured and healthy plants sampled at early morning and mid-afternoon. In addition, we related lightness scores to standard chemical analyses...
متن کاملFixed precision sampling plans for white apple leafhopper (Homoptera: Cicadellidae) on apple.
Constant precision sampling plans for the white apple leafhopper, Typhlocyba pomaria McAtee, were developed so that it could be used as an indicator species for system stability as new integrated pest management programs without broad-spectrum pesticides are developed. Taylor's power law was used to model the relationship between the mean and the variance, and Green's constant precision sequent...
متن کاملMultiple symbiosis in a leafhopper, Helochara communis Fitch (Cicadellidae: Homoptera): envelopes, nucleoids and inclusions of the symbiotes.
Mycetomes in Helochara communis are paired syncytia each enclosed by an epithelium. Adjacent are loose aggregates of mycetocytes. Mycetomes harboured 3 kinds of inclusions: companion, aand J-symbiotes according to Buchner's classification of homopteran symbiotes. In the mycetocytes, a fourth kind of inclusion was found and named g-symbiotes. All inclusions were Feulgen and Gram negative. Nucleo...
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ژورنال
عنوان ژورنال: Hilgardia
سال: 1954
ISSN: 0073-2230
DOI: 10.3733/hilg.v23n02p025