Inhibition of Chitin Synthesis by Diflubenzuron in &lt;i&gt;Manduca&lt;/i&gt; Larvae

Mitsui, Takashi; Nobusawa, Chieko; Fukami, Jun-ichi; Colins, James; Riddiford, Lynn M.

doi:10.1584/jpestics.5.335

Cited by 19 publications

(6 citation statements)

References 10 publications

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“…The present results resemble, to a great extent, those results of other BPUs against different insect species (Mitsui et al, 1980;Estal et al, 1994;Mondall and Port, 1995;Parween, 1996a). Also, decreased body weight gain and inhibited growth were caused by cyromazine on the house fly M. domestica (El-Oshar et al, 1985), IKI-7899 on the grey flesh fly Parasarcophaga argyrostoma (Ghoneim and Ismail, 1995c), chlorfluazuron on S. gregaria (Tiwari, 2000) and by Lufenuron and Diofenolan (CGA-59205) on M. domestica (Ghoneim et al, 2004).…”

Section: Growth Of S Gregaria As Influenced By Lufenuronsupporting

confidence: 89%

Efficiency of the chitin synthesis inhibitor lufenuron (cga-184699) on growth, development and morphogenesis of Schistocerca gregaria (orthoptera: acrididae).

Bakr

Ghoneim

Al-Dali

et al. 2008

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Efficiency of the chitin synthesis inhibitor lufenuron (cga-184699) on growth, development and morphogenesis of Schistocerca gregaria (orthoptera: acrididae).ABSTRACT This paper deals with the objective of investigating the effects of Lufenuron (CGA-184699) on the growth, development and morphogenesis of the desert locust Schistocerca gregaria. Five concentration levels (1000, 500, 250, 125 and 62.5 ppm) were given through the fresh plant food to the newly moulted (4 th or 5 th ) instar or late-aged 5 th instar nymphs. All results were obtained 24 h after feeding.The growth of Lufenuron-treated nymphs was profoundly inhibited because their weight gain was drastically reduced. Such reducing action of Lufenuron was dose-dependent after treatment of 4 th instar nymphs but at the higher two concentration levels after treatment of newly moulted 5 th instar nymphs and at the higher three concentration levels after treatment of late-aged 5 th instar nymphs. After treatment of the last instar nymphs, early or late-aged, the developmental rate detrimentally regressed as a response to the prohibiting action of Lufenuron on the development. In contrast, such rate was promoted during significantly shortened duration after treatment of 4 th instar nymphs, may be to accelerate the development for avoiding additional adverse effects of Lufenuron.Lufenuron exhibited an inhibitory effect on the adult emergence after treatment of last instar nymphs, regardless of the timing of treatment. On the other hand, Lufenuron exerted no effect on this vital process after treatment of 4 th instar nymphs. Moreover, the present compound, at certain concentration levels, induced the adults to emerge in a rate more than that on control congeners. However, the emerged adults suffered a morphogenic action of Lufenuron because different deformed females were produced in increasing % as, at least, the higher three concentration levels were increased. In addition, the adult females spent only shortened longevity and then died. The shortening effect was dose-dependent after treatment of 4 th instar nymphs.

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Section: Growth Of S Gregaria As Influenced By Lufenuronsupporting

confidence: 89%

Efficiency of the chitin synthesis inhibitor lufenuron (cga-184699) on growth, development and morphogenesis of Schistocerca gregaria (orthoptera: acrididae).

Bakr

Ghoneim

Al-Dali

et al. 2008

Egyptian Academic Journal of Biological Sciences. A, Entomology

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“…The poor hatching rate of eggs exposed to Dimilin in Tabanus and Chrysops could be due to reduction of chitin, as shown in a number of insects (Ker, 1977;Clarke et al, 1977;Deul et al, 1978;Ishaaya and Casida 1974;Mitsui et al, 1980;Mulder and Gijswijt, 1973;Salama et al, 1976). The abdominal contractions pump the blood forwards so that the head exerts pressure against the shell.…”

Section: Discussionmentioning

confidence: 99%

The ovicidal and larvicidal effect of dimilin on Tabanus triceps and Chrysops dispar (Diptera: Tabanidae)

Saraswathi

Ranganathan

1994

Int. J. Trop. Insect Sci.

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The insecticide diflubenzuron, Dimilin, was applied topically to the eggs of Tabanus triceps and Chrysops dispar. Mean per cent hatchability of these eggs at various concentrations ranging from 1 to 150 ppm were observed. The hatchability depended upon the age of the egg and increased with age. A minimal dose of 10 ppm of diflubenzuron caused 100% mortality (no hatchability) at the age of 48 hr in both species. The per cent hatchability was inversely proportional to the concentration of Dimilin. The larvicidal effect of Dimilin was also noted. Larval mortality (100%) was observed after 60 hr treatment. The larval mortality was directly proportional to the concentration of Dimilin. The results show that Dimilin has potential for controlling Tabanid vectors.Resume-L'insecticide diflubenzuron, le Dimilin a ete depose sur des oeufs de Tabanus triceps et Chrysops dispar. Le taux moyen du pourcentage d 'eclosion de ces oeufs a des concentrations variees, allant de 1 a 150 ppm a ete observe. La capacite a l'eclosion depend de l'age des oeufs et elle augmente a mesure que I'oeuf avance en age. line dose minimale de 10 ppm de diflubenzuron cause 100% de mortalite chez des oeufs ages de 48 heures dans les 2 especes. Le pourcentage d'eclosion est inversement proportionnel a la concentration de Dimilin. L'effet larvicide est egalement note et une mortalite larvaire de 100% est observee apres 60 heures de traitement. La mortalite larvaire est directement proportionnelle a la concentration de Dimilin. Les resultats montrent que le Dimilin est un insecticide potentiel, qui peut etre utilise pour contrdler les Tabanides vecteurs. Mots Cles: Dimilin, eclosion des oeufs, Tabanus triceps, Chrysops dispar, mortalite larvaire 8 8 © c«-i S 8 oo © ON © 8 8 ; od in X X z z IN d ON O\ © m © q t o i

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“…Five larvae were sacrificed at each determination. 4. Determination of Radioactivity Incorporated into Each Fraction In topical application, the unpenetrated 14C -CME-134 was collected by rinsing the larvae twice with 1 ml of DMSO.…”

Section: Chemicalsmentioning

confidence: 99%

Penetration, Absorption and Translocation of 1-(3, 5-Dichloro-2, 4-difluorophenyl)-3-(2, 6-difluorobenzoyl)urea (CME-134) in the Larvae of the Cabbage Armyworm, <i>Mamestra brassicae</i>

et al. 1987

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Inhibition of Chitin Synthesis by Diflubenzuron in <i>Manduca</i> Larvae

Cited by 19 publications

References 10 publications

Efficiency of the chitin synthesis inhibitor lufenuron (cga-184699) on growth, development and morphogenesis of Schistocerca gregaria (orthoptera: acrididae).

Efficiency of the chitin synthesis inhibitor lufenuron (cga-184699) on growth, development and morphogenesis of Schistocerca gregaria (orthoptera: acrididae).

The ovicidal and larvicidal effect of dimilin on Tabanus triceps and Chrysops dispar (Diptera: Tabanidae)

Penetration, Absorption and Translocation of 1-(3, 5-Dichloro-2, 4-difluorophenyl)-3-(2, 6-difluorobenzoyl)urea (CME-134) in the Larvae of the Cabbage Armyworm, <i>Mamestra brassicae</i>

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