| Summary: | 碩士 === 國立臺灣大學 === 植物病蟲害學系 === 82 === In the mating climax time two-day-old male of the smaller tea
tortrix moth (Adoxophyes sp.), response to synthetic sex
pheromone in various distance was observed. Ten males moth were
placed in the insect cage, males began to walk when it's
distance reach to 80 meters; intermittenly walked and flight at
the dis- tance of 65 meters; the males vibrated wings violently
and re- volved as soon as it approached to the sex pheromone
source. The distance of behavior of males response to synthetic
sex phe- romone extent from 80 to 5 meters. The response
behavior of males had no obvious difference. The males response
in the velocity of wind from 0.07 to 1.63 m/sec, there were no
response if the ve- locity of wind above 1.7m/sec. In 1st, 2nd
and 3rd times mark- release recapture test the re-captured rate
is 13.7, 6.3 and 8.5% ; Number of captured wild males is 14, 20
and 17. Number of ave- rage recaptured at the 10, 20, 30, 40,
50 meters was 3.0, 7.3, 7.7, 3.0 and 4.7 males. The most
recaptured rate was the distance of 30 meters, the second was
20 meters and the distance of 50 meters was the farthest
distance one night. The more freguency of wind direction in
East, South, West and North, the highter recaptured males
number. During one year the male mass-trapping showed the
climax in spring and summer, the captured numbers were lower
in autumn and winter. The precipitation affected the male
captured number more than the temperature. In the tethered
female method test, when 81 virgin females released, the
female mating rate was 19.3 % and 21.4 % in the treated and
checked area. The average number of eggs for a mated female was
194.1 and 282.3; the egg hatching rate was 79.3 % and 80.0%.
The result was that it de- cresaed 38.5% generation number.
The mating rate for 50 pairs adult was 65.3 % in treated area
which was lower than checked area was 67.3 % in one night. It
means that the sex pheromone odor in treated area didn't
disturb the male moths mated in the cage.
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