Each tube contained a strip of filter paper and a cotton pad soaked in 40% sucrose.
In each oviposition chamber, 10 l of the ovary extract (20 ovary equivalents) was placed on a 2.5 cm2 piece of filter paper.
For the searching behaviour data, the time spent on uncontaminated filter papers compared with the time spent on larval-track contaminated filter paper was non-independent.
Thirty replicates were conducted using fresh filter paper and larvae on each occasion.
The 0-, 1-, 2-, and 3-day-old eggs placed on a moist filter paper in a plastic cup (50 ml).
Across these bacterial 'lawns', filter paper disks, saturated with the agent to be tested, are placed.
The stem pieces were placed singly in 500-ml plastic cups lined with moistened filter paper.
The subjects were asked to put the filter paper in their mouth until it was saturated with saliva.
