Results 71 to 80 of about 1,843 (174)

Methoprene-Induced Genes in Workers of Formosan Subterranean Termites (Coptotermes formosanus Shiraki)

Insects, 2020
Termites have a distinct polyphenism controlled by concise hormonal and molecular mechanisms. Workers undergo double molts to transform into soldiers (worker−presoldier−soldier).
He Du, Reina L. Tong, Xueyi Huang, Bingrong Liu, Runmei Huang, Zhiqiang Li   +5 more
doaj   +1 more source

Development of an Analytical Method for Methoprene in Rice by HPLC

Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi), 1994
A new analytical method was developed for the determination of methoprene, an insecticide, in rice. Methoprene was extracted with n-hexane from powdered samples. The concentrated n-hexane extract was purified by distillation in a Dean-Stark apparatus for 1.5hr, and then cleaned-up with a Sep-pak Florisil cartridge. The eluate was used as test solution.
TAMIYA, Michio, KASHIWABARA, Fumikazu, WATANABE, Yoshiko, ANDO, Toru, TSUTSUMI, Toru, NORIZUKI, Hiroko, MINAMISAWA, Masatoshi, HISAI, Shinji   +7 more
openaire   +2 more sources

Ecdysteroids, juvenile hormone and vitellogenesis in the cockroach Leucophaea maderae

Journal of Insect Science, 2002
Topical application of 400µg of the juvenile hormone analog, methoprene, to females of the penultimate instar of Leucophaea maderae failed to induce vitellogenin synthesis.
Franz Engelmann
doaj  

Activation of gonads and disruption of imaginal diapause in the apple blossom weevil, Anthonomus pomorum (Coleoptera: Curculionidae), with juvenoids in laboratory and field trials

European Journal of Entomology, 2000
A possibility of using synthetic analogues of juvenile hormone (juvenoids) to disrupt imaginal diapause of the apple blossom weevil, Anthonomus pomorum females was demonstrated.
Jan ŽĎÁREK, Richard ČTVRTEČKA, Oldřich HOVORKA, Vladimír KOŠŤÁL   +3 more
doaj   +1 more source

Comparative acaricidal efficacy of the topically applied combinations fipronil/(S)-methoprene, permethrin/imidacloprid and metaflumizone/ amitraz against Dermacentor reticulatus, the European dog tick (ornate dog tick, Fabricius, 1794) in dogs*

Parasite, 2010
The acaricidal efficacy against Dermacentor reticulatus in dogs of the commercial topical combinations fipronil/(S)-methoprene (FRONTLINE Combo® spot-on dog), imidacloprid/permethrin (Advantix®) and metaflumizone/amitraz (ProMeris Duo®) was evaluated and
Tielemans E., Manavella C., Polmeier M., Chester T., Murphy M., Gale B.   +5 more
doaj   +1 more source

EFFECT OF METHOPRENE ON DEVELOPMENTAL STAGES OF CHIZ YSOMYA BEZZIANA [PDF]

Journal of Veterinary and Animal Sciences, 2005
Methoprene at 1 to 50 ppm concentrations produced severe mortality on eggs, prolonged the larval maturation period, produced larval pupal intermediaries and deformed flies in Chrysomyia bezziana.
H. Subramanian, K. Rajamohanan
doaj  

Effect of Cup Material on S-Methoprene Bioavailability and Susceptibility Estimates in Larval Mosquito Bioassays

Pathogens
Mosquito control programs rely on larvicides such as S-methoprene to suppress vector populations and prevent mosquito-borne diseases including West Nile virus (WNV).
Sarah S. Wheeler, Kara Kelley, Mario Novelo   +2 more
doaj   +1 more source

Fipronil/(S)-methoprene spot-on to control fleas on cats in a field trial in Spain

Pesquisa Veterinária Brasileira
: The study was conducted in order to evaluate the effect of a fipronil/(S)-methoprene formulation against fleas on naturally infested cats. The study involved a population of 89 cats distributed among 24 veterinary practices in 9 regions of Spain.
María J. Gracia, Carlos Calvete, Rosa Estrada, José M. Marcén, Rocío Pinal, Miguel A. Peribáñez   +5 more
doaj   +1 more source

The compatibility of methoprene with the mosquito fungus Culicinomyces clavisporus.

, 1985
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Lysine Triggers Acute Oviposition by Activating the 20E-ETH-JH Signaling Cascade in <i>Drosophila melanogaster</i>. [PDF]

Int J Mol Sci
Yu S, Zhou G, Wang X, Zhang L, Li P.
europepmc   +1 more source