The effects of organophosphates (mevinphos, phenamiphos, trichlorfon), carbamates (carbofuran, methomyl, oxamyl), a formamidine (chlordimeform), a synthetic pyrethroid (fenvalerate), a chlorinated hydrocarbon (methoxychlor). and an insect growth regulator (diflubenzuron) on in vitro development and reproduction of Neoaplectana carflocapsae were tested by incorporating each chemical into a nemat...

Many fly species bred in dung accumulating underneath the chicken cages and they represent a serious risk for human and animal health since several of then can act as disease vectors. There are restrictions to the exclusive use for insecticides against fly proliferation since many of them can be toxic against natural predators of such flies and also because these can quickly develop genetic ins...

A second mode of action has been found for the inhibition of chitin synthesis by diflubenzuron. This compound blocks synthesis of the imaginal cuticle by preventing formation of the adult epidermis in the pupal stage of the stable fly (Stomoxys calcitrans L.).

BACKGROUND In the tropics, the utilization of insecticides is still an important strategy for controlling Aedes aegypti, the principle vector of dengue, chikungunya and Zika viruses. However, increasing insecticide resistance in Ae. aegypti populations might hinder insecticide efficacy on a long-term basis. It will be important to understand the dynamics and evolution of insecticide resistance ...

In female adults of Gryllus bimaculatus, ovaries as well as the abdominal integument pro­ duce free and conjugated ecdysteroids in vitro (Hoffmann et al., 1992). The aim of the current study was to determine the influence of various potential ecdysteroid biosynthesis effectors (RH 5849, KK 42, diflubenzuron, ketoconazole, azadirachtin, acetylenic and allenic cholesteryl derivatives B l, B6, AL2...

Insecticidal activity of NK-17 was evaluated both in laboratory and in field. It was found that the toxicity of NK-17 against S. exigua was 1.93 times and 2.69 times those of hexaflumuron and chlorfluazuron respectively, and the toxicity of NK-17 against P. xylostella was 1.36 times and 1.90 times those of hexaflumuron and chlorfluazuron respectively, and the toxicity of NK-17 against M. separa...

The insecticidal potential of benzoylphenylurea (BPU) insect growth regulators (IGRs) has been studied since the early 1970s (Maas et al. 1981). A number of these IGRs have been evaluated in the laboratory and under field conditions against dipterous insects of medical and economic importance, particularly mosquitoes and chironomid midges (Ali and Lord 1980, Mulla and Darwazeh 1979). Among the ...

Abstract The objective of the current study is to determine effect feeding rates on efficacy diflubenzuron against filth fly development in manure beef heifers. Twelve Angus × Hereford crossbred heifers (263 kg ± 16.2 BW) were used a completely randomized design and assigned 2 x factorial arrangement treatments evaluate horn flies Haematobia irritans (L.), stable Stomoxys calcitrans house Musca...