Biomass evaluation of concealed insect pests at parasitism based on allometric scaling laws

  title={Biomass evaluation of concealed insect pests at parasitism based on allometric scaling laws},
  author={Xiao-yi Wang and Yan-long Tang and Jiaju Lu and Zhong-qi Yang},
In general, it is difficult to evaluate host resource utilization of parasitoids by examining the biomass of concealed wood borers at parasitism, because the larval tissues of parasitized hosts observed in field surveys are often almost completely consumed. This work explored a precise and convenient method for evaluating the biomass of concealed wood-boring insect pests after they are parasitized. Allometric scaling laws were used to determine mathematical relationships between larval weight… 
The developmental strategies and related profitability of an idiobiont ectoparasitoid Sclerodermus pupariae vary with host size
Assessment of host profitability revealed that medium‐sized hosts presented the best fitness return for the parasitoids, suggesting that this bethylid parasitoid can achieve a compromise in optimisation of the two most important fitness functions when encountering an abundance of different-sized hosts.
Influence of Host Age on Critical Fitness Parameters of Spathius galinae (Hymenoptera: Braconidae), a New Parasitoid of the Emerald Ash Borer (Coleoptera: Buprestidae)
It is concluded that large (fourth instar) emerald ash borer larvae should be used to rear S. galinae and the progenies that emerged from these logs had larger anatomical measurements and more female-biased sex ratios.
Biology and laboratory rearing of Spathius galinae (Hymenoptera: Braconidae), a parasitoid of the invasive emerald ash borer, Agrilus planipennis (Coleoptera: Buprestidae)
Large larvae were parasitized significantly more frequently than small larvae, and broods with more individuals and fewer males were produced when large larvae were used as hosts, and estimates of fitness of progeny based on anatomical measurements were positively associated with host size.


Parasitism of Sclerodermus pupariae (Hymenoptera:Bethylidae) on the young larvae of Massicus raddei (Coleoptera:Cerambycidae)
The results showed that the number of killed young larvae of the longhorn beetle significantly increased along with the increase of host densities during the parasitoid adults’ feeding on hosts for supplementary nutrition, which may serve as reference for rational evaluation on the ability of S.pupariae against the pest in fields and establishment of technical criterions for natural enemy release in forests.
Agents for biological control of novel hosts: assessing an aleocharine parasitoid of dung-breeding flies
SUMMARY (1) Host acceptance and suitability of a range of dipterous hosts of the predator/ parasitoid Aleochara sp. (Coleoptera: Staphylinidae, Aleocharinae) were studied in South Africa to assess
The effect of host developmental stage at parasitism on sex‐related size differentiation in a larval endoparasitoid
Sex‐specific growth trajectories were compared in unparasitised Plutella xylostella caterpillars and in second and fourth instar hosts that were parasitised by the solitary larval koinobiont endoparasitoid Diadegma semiclausum, where females are significantly larger than males.
A New Species of Sclerodermus (Hymenoptera: Bethylidae) Parasitizing Agrilus planipennis (Coleoptera: Buprestidae) from China, with a Key to Chinese Species in the Genus
A new parasitoid reared from Agrilus planipennis Fairmaire, Sclerodermas pupariae n.
Parasitism and reproductive biology of Spathius agrili Yang(Hymenoptera: Braconidae)
The number of successfully developed parasitoid offspring from host enhances with the increase of host larval weight, which indicates that the host nutrition capacity affects the development and survival of wasp progeny.
Host adaptations of the generalist parasitoids and some factors influencing the choice of hosts
The host adaptations of generalist parasitoids and some factors influencing the choice of hosts are summarized to provide new ideas and theoretical support for improving biological control efficiency by enhancing understanding on host-parasitoid interactions and artificially selecting for novel parasitoid/host relationships for augmenting the management of target insect pests.
A sex‐specific size–number tradeoff in clonal broods
It was found that brood mass (wasp body massbrood size) was proportional to host mass, independent of brood sex, indicating a tight fit between brood and host and ensuring a sizenumber tradeoff.