Results 71 to 80 of about 34,505 (298)

TACHINID PARASITOIDS: ARE THEY KOINOBIONTS?

open access: yes, 2009
Parasitoids have been divided by Askew and Shaw (1986) into koinobionts and idiobionts, on the basis of whether they allow their host to be mobile and continue developing after oviposition (koinobionts) or paralyze or kill the host before the egg hatches
DINDO, MARIA LUISA
core   +1 more source

Association of a Global Invasive Pest Spodoptera frugiperda (Lepidoptera: Noctuidae) with Local Parasitoids: Prospects for a New Approach in Selecting Biological Control Agents

open access: yesInsects
Spodopotera frugiperda is a worldwide invasive pest that has caused significant economic damage. According to the classical biological control approach, natural enemies that can control invasive pests come from the same area of origin as the pests that ...
Ihsan Nurkomar   +3 more
doaj   +1 more source

Bifurcation and Chaos in a Parasitoid-Host-Parasitoid Model

open access: yesInternational Journal of Modern Nonlinear Theory and Application, 2018
This paper discusses a parasitoid-host-parasitoid ecological model and its dynamical behaviors. On the basis of the center manifold theorem and bi-furcation theory, the existence conditions of the flip bifurcation and Neimark-Sacker bifurcation are derived. In the end of the paper, some typical numerical experiments are performed, which illustrate that
Xijuan Liu, Yun Liu
openaire   +2 more sources

Sublethal herbicide exposure alters cotton susceptibility to aphid infestation

open access: yesPest Management Science, EarlyView.
Sublethal herbicide exposure altered cotton susceptibility to aphids. Aphid severity was highest when applications occurred at early vegetative stages and declined as the crop matured. In glasshouse, herbicide effects were dose‐dependent. Abstract BACKGROUND Herbicides remain vital tools for weed control, yet their effects can extend beyond weeds to ...
Purushottam Gyawali   +4 more
wiley   +1 more source

Anti-aphrodisiac compounds of male butterflies increase the risk of egg parasitoid attack by inducing plant synomone production [PDF]

open access: yes, 2009
During mating in many butterfly species, males transfer spermatophores that contain anti-aphrodisiacs to females that repel conspecific males. For example, males of the large cabbage white, Pieris brassicae (Lepidoptera: Pieridae), transfer the anti ...
Dicke, Marcel   +30 more
core   +1 more source

Soybean plant architecture influences the capacity of Telenomus podisi to parasitize Euschistus heros eggs: implications for field releases

open access: yesPest Management Science, EarlyView.
Increasing soybean plant architectural complexity reduces the ability of Telenomus podisi to parasitize Euschistus heros eggs, highlighting the need to adjust parasitoid release rates in the field according to plant complexity (arrow direction and thickness correspond to the increasing strength of the variable) . Abstract BACKGROUND Plant architectural
Nathália Graziele Falcão Fernandes   +3 more
wiley   +1 more source

HYMENOPTEROUS PARASITOIDS OF PECAN LEAFMINERS1,2

open access: yes, 1985
Thirty-seven hymenopterous parasitoids, representing the families Braconidae, Encyrtidae, Eulophidae, and Eupelmidae were reared from the larvae and pupae of each of the pecan leafminers Stigmella juglandifoliella (Clemens) (Lepidoptera: Nepticulidae ...
Rod H. Heyerdahl, James D. Dutcher
core   +1 more source

Mating history shapes Wolbachia‐induced cytoplasmic incompatibility and female fitness in an insect pest

open access: yesPest Management Science, EarlyView.
Mating order and remating of females by males with different endosymbiont associations strongly shape Wolbachia‐induced cytoplasmic incompatibility, female fitness and offspring sex ratio. An incompatible first mating was weakly affected if followed by a compatible mating and vice versa, indicating strong first‐male sperm precedence with consequences ...
Amir H. Tourani   +4 more
wiley   +1 more source

Chlorantraniliprole: bioactivation in coffee seedlings and control of resistant Leucoptera coffeella populations

open access: yesPest Management Science, EarlyView.
Chlorantraniliprole enhanced growth and biomass in coffee seedlings infested by susceptible Leucoptera coffeella, while resistant populations limited its insecticidal performance. These findings emphasize both the bioactivator potential of chlorantraniliprole and the challenges of managing resistance in coffee leaf miner control.
Beatriz Sousa Coelho   +9 more
wiley   +1 more source

Proteo‐transcriptomic insights into the venom composition of the ectoparasitoid Eupelmus urozonus

open access: yesPest Management Science, EarlyView.
Integrated venom‐gland transcriptomics and venom proteomics of Eupelmus urozonus identified 316 venom proteins, including 75 secreted candidates, revealing diverse hydrolases, proteases/inhibitors and many uncharacterized effectors. Abstract BACKGROUND Ectoparasitoid venoms are ‘cocktails’ of bioactive molecules injected during oviposition to paralyze ...
Federica De Stefano   +7 more
wiley   +1 more source

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