Host Range and Host Suitability of Anagrus incarnatus HALIDAY (Hymenoptera : Mymaridae) : an Egg Parasitoid of Delphacid Planthoppers

Chantarasa-Ard, Sujin; Hirashima, Yoshihiro; Hirao, Jutaro

doi:10.1303/aez.19.491

Cited by 21 publications

(17 citation statements)

References 2 publications

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“…This is consistent with other studies of mymarid development (Leibee et al 1979, Sahad 1982, Chantarasaard and Hirashima 1984, Cronin and Strong 1990, Balsdon et al 1996. Unparasitized leafhoppers developed faster than Stethynium at the same temperatures.…”

Section: Discussionsupporting

confidence: 92%

“…In the oviposition preference experiment, the wasps laid 12.6 eggs on average in their Þrst 24 h. Other mymarids lay most of their eggs in the Þrst 24 Ð 48 h (Yeargan and Shuck 1981, Sahad 1982, Chantarasaard and Hirashima 1984, Cronin and Strong 1990 and as a group lay variable numbers of eggs in a lifetime, e.g., Patasson lameerei Debauche (Yeargan and Shuck 1981) and Anaphes ovijentatus (Crosby and Leonard) (Jackson 1987) average 26 eggs/lifetime; Anagrus delicatus Dozier averages 33 eggs/lifetime (Cronin and Strong 1990); Gonatocerus sp. averages 49 eggs/ lifetime (Sahad 1982); and Anagrus incarnatus Haliday averages 75 eggs/lifetime (Chantarasaard and Hirashima 1984).…”

Section: Discussionmentioning

confidence: 99%

“…averages 49 eggs/ lifetime (Sahad 1982); and Anagrus incarnatus Haliday averages 75 eggs/lifetime (Chantarasaard and Hirashima 1984). We did not measure the fecundity of Stethynium sp.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Biology of <I>Stethynium</I> sp. (Hymenoptera: Mymaridae), a Native Parasitoid of an Introduced Weed Biological Control Agent

Jacob

Joder

Batchelor

2006

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Biology of <I>Stethynium</I> sp. (Hymenoptera: Mymaridae), a Native Parasitoid of an Introduced Weed Biological Control Agent

Jacob

Joder

Batchelor

2006

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“…For example, Chantarasa-ard et al (1984) stated that egg production continued during the adult lifespan of some Anagrus incarnatus Haliday females, when fed honey and reared at 20°C. Santolamazza Carbone and Cordero Rivera (2003) found several more mature eggs in Anaphes nitens Girault females that were deprived of hosts and fed honey for 2 days than in conspecific females that were removed from hosts and killed directly.…”

Section: Introductionmentioning

confidence: 99%

Are Lab-cultured Anaphes iole Females Strictly Proovigenic?

Riddick

2005

Biocontrol

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Anaphes iole Girault (Hymenoptera: Mymaridae) is a solitary egg parasitoid of Lygus bugs (Heteroptera: Miridae) in North America. Circumstantial evidence suggests that A. iole females are strictly proovigenic. This study was designed to determine if honey-fed A. iole females could in fact mature additional eggs if exposed to hosts for a few days then removed from hosts and held at 25°C for 0, 3, or 6 days. Contrary to expectation, honey-fed A. iole females matured considerably more eggs when deprived of hosts for 3 or 6 days rather than 0 days. This research suggests that A. iole females are not strictly proovigenic. However, they do have proovigenic tendencies, since most females emerge with at least 71% of their potential fecundity.

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“…Nevertheless, the ability of pro-ovigenic species to mature additional eggs, if provided with food and suitable hosts, has been implied before. Chantarasa-ard et al (1984) stated that egg production continued during the adult lifespan of some Anagrus incarnatus females, when fed honey and reared at 20°C. Carbone and Rivera (2003) found several more mature eggs (and no immature eggs) in ovipositing A. nitens females that were removed from hosts and fed honey for 2 days than in females that were removed from hosts and killed directly.…”

Section: Discussionmentioning

confidence: 99%

Egg load of lab-cultured Anaphes iole and effects of mate presence and exposure time on load depletion

Riddick

2005

Biocontrol

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Anaphes iole Girault (Hymenoptera: Mymaridae) is a solitary egg parasitoid of Lygus bugs (Heteroptera: Miridae) in North America. This research considered factors that might impact the egg load of lab-cultured A. iole females, reared from Lygus hesperus Knight egg patches. The following hypotheses were tested: (1) egg load was related to body size and not affected by female age, and (2) egg load depletion was not affected by mate presence and time (in days) that females were exposed to host patches. Initial egg load averaged 48 mature eggs and no immature eggs were detected in the ovarioles of dissected females. Egg load was neither related to body size (hind tibia or forewing length) nor affected significantly by age (0, 1 or 2 days old honey-fed females). Mate presence (females with or without males) and exposure time (1, 3 or 5 days on the same host patch) had no effect on egg load depletion. Females usually depleted most of their egg load within 24 h. From 86 to 92% of females contained less than six mature eggs and no immature eggs after 1, 3 or 5 days of exposure to host patches. The results of this study suggest that A. iole females are certainly pro-ovigenic and initial egg load does not correlate with body size or age. Since mated and unmated females deplete most of their egg load in 24 h, time-efficient production of progeny may result when ovipositing parasitoids are exposed to suitable hosts for just a few days.

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Host Range and Host Suitability of Anagrus incarnatus HALIDAY (Hymenoptera : Mymaridae) : an Egg Parasitoid of Delphacid Planthoppers

Cited by 21 publications

References 2 publications

Biology of <I>Stethynium</I> sp. (Hymenoptera: Mymaridae), a Native Parasitoid of an Introduced Weed Biological Control Agent

Biology of <I>Stethynium</I> sp. (Hymenoptera: Mymaridae), a Native Parasitoid of an Introduced Weed Biological Control Agent

Are Lab-cultured Anaphes iole Females Strictly Proovigenic?

Egg load of lab-cultured Anaphes iole and effects of mate presence and exposure time on load depletion

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