Recent contributions of insect physiology to insect toxicology and control

Hoskins, W. M.

doi:10.3733/hilg.v13n06p307

Cited by 28 publications

(7 citation statements)

References 129 publications

(54 reference statements)

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“…Entomological Research 50 (2020) 138-145 extract was not investigated, but reports have revealed that plant extracts may cause indurations of the egg shell, interfering in water and gas exchange (Hoskins 1943), or by interfering with proton transfer in mitochondria resulting in larval mortality (Usta et al 2002).…”

Section: Inhibition Of Development Of Mosquitomentioning

confidence: 99%

Inhibition of the growth and development of mosquito larvae of Culex pipiens L. (Diptera: Culicidae) treated with extract from flower of Matricaria chamomilla (Asteraceae)

Galil

Abutaha

Almalki

et al. 2020

Entomological Research

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Mosquitoes can transfer many adverse diseases to human and animals therefore, there is a need to fight their spread. Among promising larvicidal sources is the use of plant extracts, which will play an important role in the future. This study was conducted to assess the larvicidal activity of Ferula hermonis Boiss,Achillea millefolium, Salvia officnalis, Psidium guaja and Matricaria chamomilla extract against Culex pipiens. The plant materials were extracted with hexane, dichloromethane, ethyl acetate, and methanol using a Soxhlet extractor. The extracts were evaluated for larvicidal activity against Cx. pipiens the mortality was monitored after 24 and 48 h of exposure. None of the extracts tested showed larvicidal acitivties except M. chamomilla. The ethyl acetate extract showed the most promising larvicidal activity with LC50 values of 287.1 and 209.4 ppm after 24 and 48 h of exposure, respectively. Treatment of the eggs with different concentrations of the active extract decreased the hatchability of the eggs dose dependently from 95 to 86.49%. Similarly, the pupal duration increased in treated groups. The larval period lasted for 12 d, whereas that of the control group lasted for 10 d. Furthermore, the pupal period lasted 3 d (control 2 d) in treated groups. The data also revealed a significant decrease in the growth index in treated groups (0.00–7.53) than that of the control (8.5). The GC–MS analysis revealed the presence of 1.6.10‐dodecatriene, 7,11‐dimethyl‐3‐methylene (89.68%), 1,6‐cyclodecadiene, 1‐methyl‐5‐methylene‐8‐(1‐methylethyl)‐, [S‐(E,E)] (6.34%), 2H‐pyran −3‐ol (4.04%), and 2H‐1‐benzopyran‐2‐one (0.079%).

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Section: Inhibition Of Development Of Mosquitomentioning

confidence: 99%

Inhibition of the growth and development of mosquito larvae of Culex pipiens L. (Diptera: Culicidae) treated with extract from flower of Matricaria chamomilla (Asteraceae)

Galil

Abutaha

Almalki

et al. 2020

Entomological Research

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“…There is always a chance that insects in some stage of development will escape the full lethal action of fumigants. The reproductive potential of such surviving insects is worth investigating (Loschiavo, 1960;Howe, 1974), because the number of offspring in the next generation is a better measure of toxicity, whether the reduction is in oviposition, egg hatch or successful metamorphosis, than mortality alone (Hoskins, 1940;Solomon, 1955). The chemosterilising property of a fumigant is an added advantage.…”

Section: Introductionmentioning

confidence: 99%

Post-fumigation productivity of Sitophilus oryzae (L.) (Coleoptera: Curculionidae) and Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) exposed to acrylonitrile, adjuvants of acrylonitrile, acrylonitrilel-adjuvant mixtures and other modern fumigants

Rajendran

Muthu

1981

Bull. Entomol. Res.

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LD50 doses of chloropicrin, ethylene oxide, ethylene dibromide, acrylonitrile plus 8% carbon dioxide, and acrylonitrile plus ethylene dibromide were found to decrease the productivity of adults of Sitophilus oryzae (L.) and Tribolium castaneum (Hbst.). Acrylonitrile, acrylonitrile plus methyl iodide and phosphine caused a reduction in productivity in 5. oryzae but not in T. castaneum. Carbon dioxide decreased the productivity of T. castaneum. Carbon tetrachloride, methylene chloride, methyl bromide, methyl iodide, acrylonitrile plus carbon tetrachloride and acrylonitrile plus methylene chloride had little influence on the productivity. The productivity of T. castaneum exposed to trichloroethylene and acrylonitrile plus trichloroethylene was higher than in control batches.

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“…The Spiracular Factor in Luminescence Control. Since the spiracles guard the primary site of entry of oxygen into the tracheal system, and since, in many insects, they arc known to be efficient in barring access of gases or vapors (Wigglesworth, 1939;Hoskins), their possible influence on luminescence in the firefly invites investigation. Maloeuf and Alexander mentioned the spiracles briefly in connection with their theories, but apparently they made no observations.…”

mentioning

confidence: 99%