INFLUENCE OF TEMPERATURE AND RELATIVE HUMIDITY ON SURVIVAL AND FECUNDITY OF <i>PAURIDIA PEREGRIN A</i>, A PARASITE OF MEALYBUGS AND ITS INTERACTIONS WITH <i>PLANOCOCCUS CITRI</i>

Gol'berg, A. M.

doi:10.1111/j.1570-7458.1982.tb03185.x

Cited by 9 publications

(2 citation statements)

References 7 publications

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“…Decrease in female longevity with increase in temperature was also recorded in other encyrtids like C. peregrina (Goldberg, 1982), A. pseudococci (Avidov et al, 1967), C. pyrillae (Yadav and Chaudhary, 1986), L. dactylopii (Tingle and Copland, 1989) and C. truncatellum (Stoner and Weeks, 1974). The mean longevity of females declined gradually from a maximum of 42 days at 15°C to a minimum of 8 days at40°C.…”

Section: Adult Longevitymentioning

confidence: 64%

Influence of constant temperatures on the developmental rate, progeny production, sex ratio and adult longevity of the grape mealybug parasitoid, Anagyrus dactylopii (How.) (Hymenoptera: Encyrtidae)

Mani

Krishnamoorthy

1992

Int. J. Trop. Insect Sci.

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The effects of six constant temperatures ranging from 15 to 40°C on the rate of development, progeny production, sex ratio and adult longevity of the grape mealybug parasitoid, Anagyrus dactylopii (How.) were determined. It was found to complete the development in the temperature regimes of20-35°C but neither sex emerged as adults at 15 and 40°C. Developmental time of male and female decreased from 32.75 to 10 days, and from 34.50 to 11.75 days respectively, as the temperature increased from 20-35°C. Progeny production increased with the rise in temperature up to 30°C, and a maximum of 182 offspring emerged at 30°C. Sex ratio was altered considerably by different temperatures. Maximum female progeny was also obtained at 30°. Adult longevity of both sexes declined with increasing temperature. Mean longevity of male reduced from 2730 days at 15°C to 2.75 days at 40°C. The findings on the effects of temperature in relation to the rearing in the laboratory and the activity of Anagyrus dactylopii in the field are also discussed.Resume-Les effets de 6 temperatures constantes comprises entre 15 et 40°C sur le taux de developpement, l'accroissement de la progeniture, le sex ratio et la longevite imaginale du parasitoide de la cochenille farineuse du raisin sont etudies. Entre 20 et 35°C, le cycle biologique a puetre boucle alorsqu'entre 15 et 40° C aucun adulte, quelque soit le sexe, n'a pu emerger. La duree du cycle biologique au niveau des 2 sexes avec 1'elevement de la temperature de 20 a 30°C a chute respectivementde32.75 a lOjours. La progeniture augmente avec I'uccroissementde la temperature jusqu'a 30°C oil elle atteint le maximun de 182. Le sex ratio a subi des variations considerables suivant les temperatures. Un maximun de descendance femelle est obtenu a 30°C. La longevite des 2 sexes decroft avec l'accroissement de la temperature. La longevite moyenne d'un male dimunie de 27.7 jours a 15°C a 2.75 a 40°C et celle de la femellle de 42 jours a 15°C a 8 jours a 40°C. Les effets de la temperature dans les conditions d'elevage en laboratoire, et l'activite A'Anagyrus dactylopii en conditions naturelles sont discutes.

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Section: Adult Longevitymentioning

confidence: 64%

Influence of constant temperatures on the developmental rate, progeny production, sex ratio and adult longevity of the grape mealybug parasitoid, Anagyrus dactylopii (How.) (Hymenoptera: Encyrtidae)

Mani

Krishnamoorthy

1992

Int. J. Trop. Insect Sci.

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“…This parasitoid is a solitary, thelytokous, proovigenic endopar-asitoid which completes its life cycle in approximately four weeks (Bartlett, 1977). Limited information on the reproductive biology of C. peregrinus is available (Gol'berg, 1982;Krishnamoorthy & Mani, 1989;Zinna, 1960), however, studies to quantify the host selection and oviposition behavior of C. peregrinus have not been conducted.…”

Section: Introductionmentioning

confidence: 99%

Oviposition behavior of Coccidoxenoides peregrinus, a parasitoid of Planococcus ficus

Joyce

Hoddle

Bellows

et al. 2001

Entomologia Exp Applicata

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The encyrtid parasitoid, Coccidoxenoides peregrinus has been used as a biological control agent against the mealybugs Planococcus citri and Planococcus ficus. This study examined the behavior and host selection of C. peregrinus attacking P. ficus. Adult parasitoids were fed a 0.1% solution of acridine orange, a DNA binding dye used to label C. peregrinus eggs. In a choice test, adult parasitoids were offered equal numbers of first through fourth instars of P. ficus and behavior of C. peregrinus was filmed and analyzed. Acridine orange labeled ova of the parasitoids found within mealybug hosts fluoresced green under fluorescence microscopy and presence of fluorescing eggs in hosts was used to determine oviposition events. A time budget prepared for C. peregrinus indicated that this parasitoid spent the majority of its time searching (71.64%) and grooming (15.06%). The average probing duration over all instars which led to oviposition from single visits was 4.93±0.62 s. A total of 35.51% of probes from all attacks led to ovipositions, whereas 33.72% of single visits to hosts resulted in ovipositions. Detection of fluorescing acridine orange labeled eggs showed all instars of P. ficus were acceptable for oviposition by C. peregrinus. There was a significant preference to probe second, third, and fourth instars rather than first instars of P. ficus. Host feeding was not observed for this parasitoid.

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Progeny production and adult longevity of the mealybug parasitoidsAnagyrus pseudococci, Leptomastix dactylopii, andLeptomastidea abnormis [Hym.: Encyrtidae] in relation to temperature

Tingle

Copland

1989

Entomophaga

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Progeny production increased and adult longevity decreased with rising temperature within the range 18 *C to 30 *C for the 3 mealybug parasitoids Anagyrus pseudococci (Girault), Leptomastix dactylopii Howard and Leptomastidea abnormis (Girault). The Weibull distribution gave a good fit to survival curves for the 3 parasitoids and statistical comparison of Weibull b and c parameters at different temperatures allowed changes in the scale and shape of the curves to be detected, In general, ~ lived longer than ~' for all 3 species, except at high temperature.Female L. abnormis attained their maximum progeny production at 24 *C and maintained this level up to 34 *C. They lived longer than the other 2 parasitoid species at 30 *C and showed a type I survival curve throughout the range of temperatures examined. A. pseudococci and L. daetylopii both required high temperatures (30 *C) to attain their maximal progeny production, but were short-lived at this temperature. At 30 *C the survival curves of both ff and ~ A.pseudococci tended towards type II, with a larger proportion of the population dying within the first few days. L. dactylopii lived longest at 26 *C, with ~ showing a type I survival curve at all temperatures and ~' survival curves changing from type I to type II at 30 *C. The implications of these findings for the population dynamics of the different parasitoids are briefly discussed.

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INFLUENCE OF TEMPERATURE AND RELATIVE HUMIDITY ON SURVIVAL AND FECUNDITY OF PAURIDIA PEREGRIN A, A PARASITE OF MEALYBUGS AND ITS INTERACTIONS WITH PLANOCOCCUS CITRI

Cited by 9 publications

References 7 publications

Influence of constant temperatures on the developmental rate, progeny production, sex ratio and adult longevity of the grape mealybug parasitoid, Anagyrus dactylopii (How.) (Hymenoptera: Encyrtidae)

Influence of constant temperatures on the developmental rate, progeny production, sex ratio and adult longevity of the grape mealybug parasitoid, Anagyrus dactylopii (How.) (Hymenoptera: Encyrtidae)

Oviposition behavior of Coccidoxenoides peregrinus, a parasitoid of Planococcus ficus

Progeny production and adult longevity of the mealybug parasitoidsAnagyrus pseudococci, Leptomastix dactylopii, andLeptomastidea abnormis [Hym.: Encyrtidae] in relation to temperature

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