juvenoids

juvenoids

see insect growth regulators.
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Metabolism and mode of action of juvenile hormone, juvenoids and other insect growth regulators.
Biological activity of two juvenoids and two ecdysteroids against three stored product insects.
Ecdysteroids and juvenoids have a major role in regulating molting, growth, and reproduction in crustaceans.
The juvenoids (pyridyloxypropyl ether) are juvenile hormone analogues and cause development disorders in the insects (Ferreira 1999).
Similarly results of other scientists show that CSIs of the benzoyl phenyl urea group, in contrast to juvenoids and ecdysteroids, are very active against beetles that develop inside the grain (Ammar, 1988; Elek and Longstaff, 1994; Oberlander et al.
Some compounds are known to inhibit the formation of chitin, which is required for moulting from one stage into the next stage and these compounds are known as chitin synthesis inhibitors and juvenoids are the analogues of juvenile hormones that inhibit pupation.
2006) mention that the use of metyrapone, which has an action similar to that of juvenoids on S.
Ecdysteroids and juvenoids in two male morphotypes of Libinia emarginata.
Later treatment results in a reduced effect - appearance of intermediates between the juvenile and metamorphosed stages - since the various body tissues gradually become insensitive to juvenoids (for review see Sehnal, 1983).
For a larva to molt into the preadult stage called a pupa, however, juvenoids must be absent.
The first category includes juvenoids (juvenile hormone analogues) and antfjuvenoids which mimic the action of authentic JH or inhibit its role in insect growth and development (Slama 1974; Retnakaran et al, 1985).