Effects of the bipyridylium herbicides diquat dibromide and paraquat dichloride on growth and development of Neobellieria bullata (Diptera: Sarcophagidae) larvae. 1990

B Darvas, and J Zdárek, and T Timár, and M H el-Din
Plant Protection Institute, Hungarian Academy of Sciences, Budapest.

Diet containing diquat dibromide (1,000 or 2,000 ppm) caused an extension of the first-instar stadium of Neobellieria bullata (Parker); the first molt was primarily disturbed. Pupariation was delayed when early-wandering larvae had been injected with diquat dibromide (18 micrograms/larva; approximately to 150 ppm). This effect of diquat dibromide was eliminated by simultaneous injection of 20-OH ecdysone (0.02 micrograms/larva). After larvae in the red spiracle stage were injected with diquat dibromide (5 micrograms/larva; approximately 42 ppm), evagination of the pupal head was inhibited. Paraquat dichloride was less active than diquat dibromide and appears to be a safer herbicide for use around decomposer fly species.

UI MeSH Term Description Entries
D007814 Larva Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals. Maggots,Tadpoles,Larvae,Maggot,Tadpole
D010269 Paraquat A poisonous dipyridilium compound used as contact herbicide. Contact with concentrated solutions causes irritation of the skin, cracking and shedding of the nails, and delayed healing of cuts and wounds. Methyl Viologen,Gramoxone,Paragreen A,Viologen, Methyl
D004175 Diptera An order of the class Insecta. Wings, when present, number two and distinguish Diptera from other so-called flies, while the halteres, or reduced hindwings, separate Diptera from other insects with one pair of wings. The order includes the families Calliphoridae, Oestridae, Phoridae, SARCOPHAGIDAE, Scatophagidae, Sciaridae, SIMULIIDAE, Tabanidae, Therevidae, Trypetidae, CERATOPOGONIDAE; CHIRONOMIDAE; CULICIDAE; DROSOPHILIDAE; GLOSSINIDAE; MUSCIDAE; TEPHRITIDAE; and PSYCHODIDAE. The larval form of Diptera species are called maggots (see LARVA). Flies, True,Flies,Dipteras,Fly,Fly, True,True Flies,True Fly
D004178 Diquat A contact herbicide used also to produce desiccation and defoliation. (From Merck Index, 11th ed) Diquat Dibromide,Dibromide, Diquat
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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