Seasonality of Mating and Ovarian Development Overwintering Cacopsylla pyricola (Homoptera: Psyllidae)

Krysan, James L.; Higbee, Bradley S.

doi:10.1093/ee/19.3.544

Cited by 37 publications

(65 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Insects for olfactometer bioassays were held in glass jars under the same conditions for 3-7 d. On each collection date, a subsample of 10 post-diapause females collected in February-March 2009 was dissected to determine ovarian maturity (an indicator of diapause status), and the number of spermatophores (an indicator of the number of times a female had mated) (Krysan and Higbee 1990;). Behavioral assays and extractions were not conducted until dissected females in the subsample had reached an average ovarian score of 5 or higher (Krysan and Higbee 1990), at which stage females are attractive to males in olfactometer assays . Although field collected psylla were mated, the mating status has no effect on female attractiveness in pear psylla (Horton et al 2008).…”

Section: Methodsmentioning

confidence: 99%

“…Diapause ends in December and January, but cold temperatures prevent mating and ovarian development (Krysan and Higbee 1990). In the central Washington state study area, mating by post-diapause winterforms begins in mid-February as ambient temperatures begin to increase (Krysan and Higbee 1990;Horton et al 1998.…”

Section: Introductionmentioning

confidence: 99%

“…Pear psylla is a multivoltine, seasonally dimorphic species, with a small, light-colored adult occurring during the growing season ("summerform"), and a darker and larger overwintering morphotype ("winterform") that appears in late summer or early autumn in response to decreasing photoperiod (Oldfield 1970). The winterform, characterized by lack of mating and immature ovaries, overwinters in reproductive diapause (Krysan and Higbee 1990). Diapause ends in December and January, but cold temperatures prevent mating and ovarian development (Krysan and Higbee 1990).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Identification of a Sex Attractant Pheromone for Male Winterform Pear Psylla, Cacopsylla pyricola

et al. 2009

View full text Add to dashboard Cite

Pear psylla, Cacopsylla pyricola (Förster) (Hemiptera: Psyllidae), a major economic pest of pears, uses a female-produced sex attractant pheromone. We compared the chemical profiles obtained from cuticular extracts of diapausing and post-diapause winterform males and females to isolate and identify the pheromone. Post-diapause females produced significantly more of the cuticular hydrocarbon, 13-methylheptacosane, than post-diapause males and diapausing females. In olfactometer assays, conspecific males were attracted to synthetic racemic 13-methylheptacosane, whereas females were not, indicating that the behavioral response to this chemical is sex-specific. Furthermore, 13-methylheptacosane was as attractive to males as a cuticular extract of females, suggesting that this chemical was largely responsible for the female attractiveness. A field study showed that males but not females were attracted to 13-methylheptacosane, confirming the olfactometer results. This study provides evidence that 13-methylheptacosane is a sex attractant pheromone for C. pyricola winterform males. This is the first identification of a sex pheromone in the Psylloidea. Our results open the path to developing monitoring tools and possibly new strategies for integrated pest management of this insect.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Identification of a Sex Attractant Pheromone for Male Winterform Pear Psylla, Cacopsylla pyricola

et al. 2009

View full text Add to dashboard Cite

show abstract

“…Variation in body color has been described in numerous species within the superfamily Psylloidea, including Cacopsylla midoriae (Miyatake) (Inoue 2004); Cacopsylla elegans Inoue (Inoue 2004); Cacopsylla chinensis (Yang & Li) (Yang et al 2004); Agonoscena pistaciae Burckhardt & Lauterer (Mehrnejad and Copland 2005); and the pear psylla, Cacopsylla pyricola (Fö rster) (Wong andMadsen 1967, Krysan andHigbee 1990), as well as in many species in the family Aphididae (Araya et al 1996;Watt and Hales 1996;Miller 1998, 2001;Nevo and Coll 2001;Toros et al 2003). This variation is may be associated with different seasonal forms, endosymbionts (Weisgraber et al 1971, Jenkins et al 1999, or (in some aphids) genetically distinct morphs (Araya et al 1996, Langley et al 2006.…”

mentioning

confidence: 99%

Relationships Between Adult Abdominal Color and Reproductive Potential in Diaphorina citri (Hemiptera: Psyllidae)

Wenninger

Stelinski

Hall

2009

Annals of the Entomological Society of America

View full text Add to dashboard Cite

Diaphorina citri Kuwayama (Hemiptera: Psyllidae), a vector of huanglongbing (citrus greening disease), exhibits three more or less distinct abdominal colors in the adult stage: gray/brown, blue/green, and orange/yellow. A previous report showed that, relative to blue/green individuals, gray/brown individuals of both sexes have lower body mass, and gray/brown females may have lower reproductive output. In the present investigation, we directly examined the relationships between female and male abdominal color and reproductive output. We also assessed how psyllid body mass was inßuenced by transfer to fresh plant material and how female and male abdominal color affected behavioral responses of males to crushed females in a petri dish assay. Relative to blue/green females, gray/brown females exhibited lower fecundity over the Þrst 2Ð5 d after mating, but fecundity did not differ over the remainder of a 21-d observation period. Regardless of abdominal color, females mated with gray/brown males showed an earlier, sharper peak in fecundity, whereas females mated with blue/green males showed a later, more gradual peak in fecundity. Gray/brown males elicited lower egg fertility in their mates, but egg fertility did not vary according to female abdominal color. MalesÑirrespective of abdominal colorÑ exhibited stronger evidence of attraction to crushed blue/ green females than to crushed gray/brown females. Gray/brown individuals of both sexes showed an increase in body mass 5Ð 6 d after transfer to a new citrus seedling, suggesting that abdominal color (which is closely related to body mass) may be inßuenced at least in part by plant quality.

show abstract

“…The species is multivoltine throughout its range, having three to five generations per year depending upon latitude (Westigard and Zwick 1972). Winterform pear psylla overwinter in reproductive diapause, characterized by immature ovaries and a lack of mating (Krysan and Higbee 1990). Winterform pear psylla overwinter in reproductive diapause, characterized by immature ovaries and a lack of mating (Krysan and Higbee 1990).…”

Section: Introductionmentioning

confidence: 99%

THE EFFECT OF A NEEM (AZIDIRACHTA INDICA) BASED INSECTICIDE ON SURVIVAL AND DEVELOPMENT OF JUVENILE WESTERN CHERRY FRUIT FLY (RHAGOLETIS INDIFFERENS) (DIPTERA: TEPHRITIDAE)

VanRanden

Roitberg

1998

Can Entomol

View full text Add to dashboard Cite

The Canadian Entomologist 130: 859 -867 (1998) Effects of photoperiod, time of year, temperature, and an insect growth regulator (fenoxycarb) on ovarian development rate in overwintering pear psylla, Cacopsylla pyricola (Foerster), were determined. Winterform pear psylla were collected from the field at intervals between October and February, and reared at 20°C and one of three treatments: short-day photoperiod, long-day photoperiod, or short-day Xhfl THE CANADIAN ENTOMOLOGIST November/December 1998 Ct C stoppC par de basses tempkratures. Le fenoxycarbe a favoris6 un dCveloppement ovarien rapide, mCme chez les insectes capturCs en octobre; le taux de dCveloppement n'a Ct C que 1Cgbrement plus rapide chez les psylles traitCes en fCvrier.[Traduit par la RCdaction]

show abstract

Seasonality of Mating and Ovarian Development Overwintering Cacopsylla pyricola (Homoptera: Psyllidae)

Cited by 37 publications

References 0 publications

Identification of a Sex Attractant Pheromone for Male Winterform Pear Psylla, Cacopsylla pyricola

Identification of a Sex Attractant Pheromone for Male Winterform Pear Psylla, Cacopsylla pyricola

Relationships Between Adult Abdominal Color and Reproductive Potential in Diaphorina citri (Hemiptera: Psyllidae)

THE EFFECT OF A NEEM (AZIDIRACHTA INDICA) BASED INSECTICIDE ON SURVIVAL AND DEVELOPMENT OF JUVENILE WESTERN CHERRY FRUIT FLY (RHAGOLETIS INDIFFERENS) (DIPTERA: TEPHRITIDAE)

Contact Info

Product

Resources

About