Effects of the gregarious parasitoids, Apanteles ruficrus and A. Kariyai, on host growth and development

Sato, Yoshibumi; Tagawa, Jun; Hidaka, Toshitaka

doi:10.1016/0022-1910(86)90040-5

Cited by 32 publications

(23 citation statements)

References 22 publications

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“…Although the growth rate of parasitized larvae was less than that of non-parasitized larvae, the body mass of parasitized larvae continued to increase after oviposition by M. similis. This phenomenon was observed previously (Sato et al 1986). It has been shown that protein synthesis continued during the growth of immature stages of parasitoids in the host body.…”

Section: Discussionsupporting

confidence: 53%

Development ofMicroplitis similis(Hymenoptera: Braconidae) on Two Candidate Host Species,Spodoptera lituraandSpodoptera exigua(Lepidoptera: Noctuidae)

Huang

Chang

et al. 2015

Florida Entomologist

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Section: Discussionsupporting

confidence: 53%

Development ofMicroplitis similis(Hymenoptera: Braconidae) on Two Candidate Host Species,Spodoptera lituraandSpodoptera exigua(Lepidoptera: Noctuidae)

Huang

Chang

et al. 2015

Florida Entomologist

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“…nov near sinope showed preference for third-instar immature and pre-reproductive female P. madeirensis. et al, 2003) but was reported in a few studies (Sato et al, 1986;Schopf & Steinberger, 1996). Coccidoxenoides perminutus Girault [= C. peregrinus (Timberlake)] parasitized all developmental stages of the citrus mealybug, Planococcus citri (Risso) but showed preference for second-and third-instar nymphs (Ceballo & Walter, 2004).…”

Section: Discussionmentioning

confidence: 94%

Host stage selection of the mealybug parasitoid Anagyrus spec. nov near sinope

Chong

Oetting

2006

Entomologia Exp Applicata

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The mealybug parasitoid Anagyrus spec. nov near sinope (Hymenoptera: Encyrtidae) is an undescribed parasitoid of the Madeira mealybug, Phenacoccus madeirensis Green (Homoptera: Pseudococcidae). We investigated the preference of Anagyrus spec. nov near sinope for six developmental stadia (first-and second-instar nymphs, third-instar immature females, third-or fourth-instar immature males, pre-reproductive adult females, and ovipositing adult females) of P. madeirensis and the fitness consequences of the host stage selection behavior. In the no-choice test, Anagyrus spec. nov near sinope parasitized and completed development in all host stadia except third-instar immature males. When all host stadia were offered simultaneously, the parasitoids preferred third-instar immature and pre-reproductive adult females. Dissection of the stung mealybugs revealed that the clutch size (number of eggs per host) was approximately four and three in the third-instar and pre-reproductive females, respectively, and one egg per first-instar nymph. Parasitoids emerged from P. madeirensis parasitized at third-instar or pre-reproductive adult female completed development in the shortest duration, achieved a higher progeny survival rate, larger brood and body size, and the lowest proportion of males. We showed that the continued development of mealybugs had significant influence on the fitness of the parasitoids. Although deposited as eggs in first-or second-instar nymphs, parasitoids emerged from mummies that had attained third-instar or adult development achieved similar progeny survival rate, brood size, body size, and sex ratio as those parasitoids deposited and developed in third-instar or adult mealybugs. By delaying larval development in young mealybugs, Anagyrus spec. nov near sinope achieved higher fitness by allowing the parasitized mealybugs to grow and accumulate body size and resources. We suggest that the fitness consequence of host stage selection of a koinobiont parasitoid should be evaluated on both the time of parasitism and the time of mummification.

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“…This is because most solitary species reduce host food consumption greatly, and many arrest host growth prior to the ®nal instar, whereas gregarious koinobionts frequently stimulate host feeding behaviour and thus increase host-induced damage (Tanaka et al, 1984;Sato et al, 1986). This is because most solitary species reduce host food consumption greatly, and many arrest host growth prior to the ®nal instar, whereas gregarious koinobionts frequently stimulate host feeding behaviour and thus increase host-induced damage (Tanaka et al, 1984;Sato et al, 1986).…”

Section: Discussionmentioning

confidence: 99%

“…Numerous studies have revealed that the effects of parasitism on host growth and development often vary between solitary and gregarious koinobiont endoparasitoids. By contrast, the growth of hosts parasitised by gregarious endoparasitoids is frequently increased after parasitism, compared with healthy hosts (Parker & Pinnell, 1973;Sato et al, 1986;Dushay & Beckage, 1993;Alleyne & Beckage, 1997;Schopf & Steinberger, 1997). By contrast, the growth of hosts parasitised by gregarious endoparasitoids is frequently increased after parasitism, compared with healthy hosts (Parker & Pinnell, 1973;Sato et al, 1986;Dushay & Beckage, 1993;Alleyne & Beckage, 1997;Schopf & Steinberger, 1997).…”

Section: Introductionmentioning

confidence: 99%

Dynamic effects of parasitism by an endoparasitoid wasp on the development of two host species: implications for host quality and parasitoid fitness

Harvey¹

2000

Ecological Entomology

149

150

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1. The study reported here examined growth and developmental interactions between the gregarious larval koinobiont endoparasitoid Cotesia glomerata (Hymenoptera: Braconidae) and two of its hosts that vary considerably in growth potential: Pieris rapae and the larger P. brassicae (Lepidoptera: Pieridae). At pupation, healthy larvae of P. brassicae are over twice as large, in terms of fresh body mass, as those of P. rapae.2. Clutch size of C. glomerata was manipulated arti®cially, and the relationship between parasitoid burden and the maximum weight of the parasitised host (= host± parasitoid complex) was measured. In both hosts, the maximum complex weight was correlated positively with parasitoid burden. Compared with unparasitised hosts, however, the growth of P. rapae was increased at signi®cantly lower parasitoid burdens than in P. brassicae. Emerging wasp size was correlated negatively with parasitoid burden in both host species, whereas development time was less affected.3. After larval parasitoid egress, the weight of the host carcass increased slightly, but not signi®cantly, with parasitoid burden, although there was a strong correlation between the proportion of host mass consumed by C. glomerata larvae during development and parasitoid burden.4. Clutch size was generally correlated positively with instar parasitised in both hosts, and greater in P. brassicae than in P. rapae. Sex ratios were much more female biased in L1 and L2 P. rapae than in all other host classes. Adult parasitoid size was correlated inversely with host instar at parasitism, and wasps emerging from P. brassicae were larger, and completed development faster, than conspeci®cs emerging from P. rapae.5. The data reveal that parasitism by C. glomerata has profound species-speci®c effects on the growth of both host species. Consequently, optimality models in which host quality is often based on host size at parasitism or unparasitised growth potential may have little utility in describing the development of gregarious koinobiont endoparasitoids. The results of this investigation are discussed in relation to the potential effectiveness of gregarious koinobionts in biological control programmes.

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Effects of the gregarious parasitoids, Apanteles ruficrus and A. Kariyai, on host growth and development

Cited by 32 publications

References 22 publications

Development ofMicroplitis similis(Hymenoptera: Braconidae) on Two Candidate Host Species,Spodoptera lituraandSpodoptera exigua(Lepidoptera: Noctuidae)

Development ofMicroplitis similis(Hymenoptera: Braconidae) on Two Candidate Host Species,Spodoptera lituraandSpodoptera exigua(Lepidoptera: Noctuidae)

Host stage selection of the mealybug parasitoid Anagyrus spec. nov near sinope

Dynamic effects of parasitism by an endoparasitoid wasp on the development of two host species: implications for host quality and parasitoid fitness

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