Results 91 to 100 of about 55,565 (312)

Suitability of felt traps to monitor oviposition by the cabbage maggot (Diptera: AnthomyiidaeC) [PDF]

open access: yes, 2002
The effectiveness of felt egg traps to detect oviposition by the cabbage maggot, Delia radicum (L.), was studied under field conditions for cabbage, Brassica oleracea L. var. capitata L. (Brassicaceae), and rutabaga, Brassica napus L. var.
Spaner, Dean   +2 more
core   +1 more source

Transcriptomic resources and functional validation of RNAi in the cabbage seedpod weevil, Ceutorhynchus obstrictus

open access: yesPest Management Science, EarlyView.
Transcriptome sequencing of Ceutorhynchus obstrictus revealed RNA interference (RNAi) targets; double‐stranded RNA microinjection reduced transcript levels and increased mortality, with αCOP and Rop showing strongest lethal effects, indicating promising RNAi‐based pest control candidates.
Apurva Vikas Sabnis   +8 more
wiley   +1 more source

The Effect of Oviposition on Fertility in Chickens

open access: yesPoultry Science, 1978
The fertility between the first two eggs of a clutch and between eggs oviposited by the same bird on the same day were compared to determine the effect of oviposition on fertility. No differences in fertility were observed indicating that factors other than oviposition are involved in the mechanism of spermatozoal release and fertility in chickens.
F H, Benoff, J A, Renden
openaire   +2 more sources

Dispersal of _Aedes aegypti_: field study in temperate areas and statistical approach [PDF]

open access: yes, 2012
We studied the dispersion of _Aedes aegypti_ during egg laying in natural conditions. Two independent experiments involving mosquitoes dispersing from urbanization towards adjacent un-urbanized areas were carried out and analyzed in statistical terms. We
Carlos A. Ruggerio   +4 more
core  

Oviposition deterrence is likely an effect, not a mechanism, in the leaf-bettle Chrysophtharta Bimaculata (Olivier) (Coleoptera: Chrysomelidae) [PDF]

open access: yes, 2005
Oviposition deterrence is common in many insects as an evolutionary mechanism to reduce subsequent larval competition. We investigated a suspected case of oviposition deterrence by the paropsine chrysomelid, Chrysophtharta bimaculata.
Clarke, Anthony R., Howlett, Brad G.
core   +1 more source

Modelling the phenology of the grapevine leafhopper Erasmoneura vulnerata

open access: yesPest Management Science, EarlyView.
This study developed and validated a phenological population dynamics model for Erasmoneura vulnerata, integrating field monitoring and literature data to reproduce observed seasonal patterns across multiple sites. Abstract BACKGROUND Erasmoneura vulnerata (Fitch) (Hemiptera: Cicadellidae) is an invasive Nearctic leafhopper that has become a pest of ...
Andrea De Francesco   +5 more
wiley   +1 more source

Follicular Control of Oviposition in the Hen

open access: yesPoultry Science, 1990
Ligation of the largest preovulatory follicle (F1) or the second largest preovulatory follicle (F2) delayed terminal oviposition for at least 2 h. Ligation of the fourth or fifth largest preovulatory follicle had no effect on the time of terminal oviposition.
J D, Kelly, R J, Etches, D, Guémené
openaire   +2 more sources

Erythro-6-Acetoxy-5-hexadecanolide, the major component of a mosquito oviposition attractant pheromone

open access: yes, 1982
The major component of the oviposition attractant pheromone from the apical droplet of eggs of the mosquito Culex pipiens fatigans is shown by g.l.c.–mass spectrometry, microchemical methods, and synthesis to be erythro-6-acetoxy-5-hexadecanolide (1 ...
Pickett, J. A.   +3 more
core   +1 more source

Take flight: predation risk induces wing polyphenism and dispersal in the aphid Myzus persicae

open access: yesPest Management Science, EarlyView.
Predator risk above a critical density induces winged morphs in Myzus persicae, promoting dispersal and reducing predation compared with wingless aphids. This density‐dependent phenotypic plasticity enhances survival but may compromise biological control by facilitating aphid dispersal.
Jamin Ali   +5 more
wiley   +1 more source

Larvicidal and Oviposition Activity of Commercial Essential Oils of Abies sibirica Ledeb., Pogostemon cablin (Blanco) Benth., Juniperus communis L. and Their Combinations Against Aedes aegypti

open access: yesMolecules
Aedes aegypti is a vector responsible for the transmission of various arboviruses and is considered by the World Health Organization to be one of the main public health problems in the world.
Júlio César Ribeiro de Oliveira Farias de Aguiar   +16 more
doaj   +1 more source

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