Examples of nymphal

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To evaluate this indication, the relative durations between the four nymphal instars at low, medium and high constant temperatures are compared (table 6).
Interestingly, although 20-hydroxyecdysone predominated over ecdysone in all nymphal stages, the proportion of the latter was enhanced in the later three nymphal stages.
In this experiment, only females with five nymphal instars were used because of the limited space and labour.
It is probable that there is only one generation in the year and that the nymphal diapause is of considerable duration.
The pairs originated from the test on nymphal development.
The relationship between total nymphal reproduction and temperature was well described by equation 4 (fig. 5a).
However, the developmental period and nymphal mortality were greater than in the presence of prey.
In both species, adult females had the highest rate of feeding followed by the fifth and fourth nymphal instars.
Differences were also recorded in the relative duration of nymphal instars in each mirid species.
These results suggest that a comparison of morphometric ratios should be made between adults with the same number of nymphal instars.
Mortality of adults of the three species from parasitism was generally higher than that of the nymphal stages (table 2; figs 1-3).
Efficacy is greater against nymphal and larval ticks than adults.
An interesting result was the completion of the nymphal stages of both species when fed entirely on tobacco leaves.
Both adult and nymphal ticks become persistently infected and provide an overwintering mechanism for the virus.
The later stages of development are only seen in ticks which have been infected during the nymphal stages.
The data are based on intact individuals with five nymphal instars only.
Curiously, the constructs most effective against nymphal stages had no effect on adults and vice versa though they were portions of the same protein.
The data are based on intact individuals with five or six nymphal instars.

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