Results 81 to 90 of about 6,525 (206)

Cockroach Infestation in Bahir Dar Area of Ethiopia: A Transition Between the Savanna Biome and the Middle Afromontane Hotspot

open access: yesJournal of Tropical Medicine, Volume 2026, Issue 1, 2026.
Background In urban areas of developing countries, cockroaches pose a significant public health threat by spreading diseases and contaminating food sources. This study aimed to assess the infestation levels of indoor cockroach species across various household settings and to evaluate community management practices.
Yelfwagash Asmare   +3 more
wiley   +1 more source

Survey of Optimal methods for the control of Cockroaches in sewers of Qom city [PDF]

open access: yes
Background and objectives: domestic sewers and wastewater treatment plants are suitable places for the growth of some types of Cockroaches. Annually the water and wastewater company of Qom city make considerable attempts to overwhelm the problem.
زارعی, احمد   +5 more
core  

Comparative Expression Analysis of Olfactory Receptor Genes Among Individuals With Soldier and Worker Caste Differentiation Fates in Termites

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
We investigated the role of chemosensory gene expression in caste differentiation of the damp‐wood termite Zootermopsis nevadensis. Gene expression analyses revealed that third‐instar larvae destined to become workers exhibited significantly higher expression of key olfactory receptor genes in their antennae, suggesting that differences in chemosensory
Takumi Hanada   +2 more
wiley   +1 more source

Are differences in hydrocarbon profiles able to mediate strain recognition in German cockroaches (Dictyoptera: Blattellidae)?

open access: yesEuropean Journal of Entomology, 2002
Previous behavioural tests indicated that strain recognition and aggregation behaviour could be induced by cuticular hydrocarbons. The aim of this study was to document and to compare cuticular hydrocarbon profiles between different strains of Blattella ...
Colette RIVAULT, Ann CLOAREC, Leam SRENG
doaj   +1 more source

Structural diversity and evolution of the N-terminal isoform-specific region of ecdysone receptor-A and -B1 isoforms in insects [PDF]

open access: yes, 2010
Background The ecdysone receptor (EcR) regulates various cellular responses to ecdysteroids during insect development. Insects have multiple EcR isoforms with different N-terminal A/B domains that contain the isoform-specific activation function (AF)-1 ...
Takayuki Watanabe   +2 more
core   +1 more source

Susceptibility of cockroaches (Blattella germanica Linneaus) to various insecticides

open access: yesThe Korean Journal of Parasitology, 1970
During the period from May to October 1969, the authors carried out a series of tests with the aim to ascertain the present status of susceptibility of adult cockraoches to various insecticides. The tests on the susceptibility of cockroaches to dieldrin, D.D.V.P., Diazinon; Dibrom, Malathion and lindane were performed with the topical application and ...
Chul Hwan, Cha   +4 more
openaire   +2 more sources

A DEVICE FOR DETECTION OF RESIDUAL ACTIVITY OF BETA-CYFLUTHRIN (RESPONSAR 12.5% SC) AS A NEW PYRETHROID ON DIFFERENT SPECIES AGAINST BLATELLA GERMANICA (ORTHOPTERA: BLATTELLIDAE) [PDF]

open access: yesIranian Journal of Public Health, 1998
This study was designed to evaluate the efficacy of beta-cyfluthrin (Responsar 12.5% SC), against a standard susceptible strain of German cockroach, Blattella germanica, using three different dosages, at three different exposure times, on two types of ...
H. Ladonni
doaj   +2 more sources

Ploidy of Some Non-Spherical Nuclei in Cockroaches Calculate from Photometrically Measured DNA Content [PDF]

open access: yes, 1965
Author Institution: Lake States Forest Experiment Station, Forest Service, U.S. Department of Agriculture, St. Paul, MinnesotaA modified photometric technique for measuring the DNA content in nuclei was devised to estimate the degree of ploidy in the ...
Wilson, Louis F.
core  

Status Dan Perkembangan Resistensi Aedes Aegypti (Linnaeus) (Diptera: Culicidae) Strain Bandung, Bogor, Makassar, Palu, Dan VCRU Terhadap Insektisida Permetrin Dengan Seleksi Lima Generasi [PDF]

open access: yes, 2016
Aedes aegypti (Linnaeus) (Diptera: Culicidae) is the main vector of dengue fever. In Indonesia, insecticides, especially pyrethroids, such as permethrin, have been effectively used to control Ae. aegypti.
Ahmad, I. (Intan)   +4 more
core   +2 more sources

Possible Synergistic Effect of Combined Metarhizium anisopliae and Fenitrothion for Control of German Cockroach (Blattella germanica) as a Novel Approach

open access: yesJournal of Arthropod-Borne Diseases, 2022
Background: Cockroaches are one of the most common pests in many residential areas. In this study, the simultaneous effects of fungi, Metarhizium anisopliae and fenitrothion-coated baits on the mortality rate of the German cockroach nymphs were ...
Mohammad Reza Khaksar   +5 more
doaj  

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