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population growth
Bionomics and population growth statistics of apterous virginoparae of woolly apple aphid, Eriosoma lanigerum, at constant tempe
      
Development, survival, reproduction and population growth statistics of apterous virginoparae of woolly apple aphid, Eriosoma lanigerum (Hausmann) (Hemiptera: Aphididae) at constant temperatures of 10, 13, 15, 20, 25, 30 and 32°C are reported.
      
The results were incorporated into an aphid population growth model.
      
A computer model was applied to simulate responses of German cockroach populations to feeding on juvenoid baits during an equilibrium, exponential, and the earliest phase of population growth.
      
The simulations predict that even a worse baits' performance can give sufficient control effect in the field if the baits are laid in an early phase of population growth.
      
SARAH (Software for theAssessment of antibioticResistance toAleyrodidae inHost plants) is a deterministic simulation model of whitefly population growth based on whitefly life-history components determined on individual plants.
      
The criterion used was the decrease in simulated intrinsic population growth rate, rs, relative the rs value determined on a susceptible control genotype.
      
argentifolii population growth rates on Alta compared to VF145B7879, we tested the hypothesis that increased levels of whitefly biological control could be obtained on VF145B7879 by comparison to Alta through releases of D.
      
Although there were differences in the rates of population growth of the two strains, whichever strain was the conditioned strain left a greater than expected number of progeny compared to the control strain in all comparisons.
      
violaceum (Boissier >amp;amp; Hohenacker)), compared with densities on endophyte-free plants of both PI lines in population growth experiments.
      
Population growth and decline were characteristic of field type and pattern of management.
      
Using laboratory data, we simulated population growth, for comparison with outdoor populations.
      
Methods of assessing population increase in aphids and the effect of growth stage of the host plant on population growth rates
      
Realistic values of population growth rates are needed when used in forecasting programmes, e.g., in a programme of integrated control.
      
Therefore, comparisons were made in a chrysanthemum - aphid system between different methods of assessing population growth rates.
      
In the first set of experiments, development time and reproduction were used to estimate the population growth rate rm.
      
It is shown that population growth rate is affected by the growth stage of the plant, and that cultivar and aphid species interact with plant growth stage in influencing population growth rate.
      
Thus, no single growth stage of chrysanthemum for maximal aphid population growth can be assigned, but the budding and flowering stage are the most suitable in three out of four aphid × cultivar combinations.
      
Population growth and persistence when prey is diminishing in single-species and two-species systems of the predatory mites Euse
      
Population growth of T.?pyri was decisively favoured by the presence of T.?urticae.
      
 

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