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Molting disruption

Insect cuticle Benzolphenylureas, buprofezin, etoxazole, flufenoxuron Cyromazine Boric acid, silica aerogels Pesticidal soaps Inhibition of chitin biosynthesis Molting disruption Abrasion of cuticle Disruption of cuticle and breakdown of cell membranes... [Pg.139]

Brain-corpora cardiacum complex Azadirachtin Molting disruption... [Pg.139]

Methoprene and fenoxycarb mimic the action of insect juvenile hormone in molting and reproduction, and have low toxicity to mammals. Exposure at molting produces deformed insects having mixed larval/pupal or larval/adult morphologies, and they disrupt reproductive physiology in adults to effectively serve as a method of birth control. [Pg.240]

The growth of insects can be controlled by the disruption of the molting process by inhibiting chitin biosynthesis [23, 24]. Since the mid-1970s several fluorinated... [Pg.273]

Our laboratory is concerned with targeting potential insecticides that disrupt normal development and metamorphosis in insects. Juvenile hormones (JHs), acting in concert with the steroid hormone ecdysone, are believed to control the timing of the larval-larval molts, larval-pupal and pupal-adult transformations of the insects. It has been demonstrated that the events leading to pupation are initiated by reduction of the JH titer in the hemolymph. In addition to a cessation of biosynthesis, this reduction in JH titer is controlled by degradative metabolism (16,17). Hydrolysis of the epoxide and ester functionalities present in active JH are two routes of degradation and subsequent inactivation of JH (18). The primary route of JH metabolism in the hemolymph of last stadium lepidopterous larvae is ester hydrolysis, and it is catalyzed by the enzyme juvenile hormone esterase (JHE). JHE has been shown to... [Pg.214]

Although It Is unknown how azadlrachtln acts as an ecdysis Inhibitor, It apparently does not act by Inhibiting chitln synthetase (32). Possibly, ecdysis Inhibition Is caused by a disruption of the tltre of ecdysterone (40, 44) or by an Interference with the neuroendocrine system, prothoradcotroplc hormone and allatotroplc hormone, which controls the tltres of molting hormone and juvenile hormone, respectively (45). [Pg.214]

Growth regulator Alters the expected growth, flowering, or reproduction rate of plants Disrupts molting, maturity from pupal stage to adult or other life processes of insects... [Pg.3597]

See other pages where Molting disruption is mentioned: [Pg.12]    [Pg.120]    [Pg.120]    [Pg.121]    [Pg.123]    [Pg.124]    [Pg.12]    [Pg.120]    [Pg.120]    [Pg.121]    [Pg.123]    [Pg.124]    [Pg.54]    [Pg.399]    [Pg.406]    [Pg.411]    [Pg.54]    [Pg.329]    [Pg.337]    [Pg.200]    [Pg.226]    [Pg.111]    [Pg.145]    [Pg.149]    [Pg.150]    [Pg.180]    [Pg.14]    [Pg.208]    [Pg.192]    [Pg.296]    [Pg.198]    [Pg.201]    [Pg.415]    [Pg.423]    [Pg.3]    [Pg.281]    [Pg.335]    [Pg.797]    [Pg.1038]    [Pg.48]    [Pg.57]    [Pg.296]    [Pg.298]    [Pg.84]    [Pg.270]    [Pg.271]   
See also in sourсe #XX -- [ Pg.6 , Pg.7 ]

See also in sourсe #XX -- [ Pg.136 , Pg.139 ]



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