EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Behaviour of flying oriental fruit moth males during approach to sex pheromone sources


Physiological Entomology 19(1): 61-69
Behaviour of flying oriental fruit moth males during approach to sex pheromone sources
The pheromone-modulated upwind flight tracks of Grapholita molesta (Busck) males were video recorded as they approached a point-source of pheromone in a wind tunnel. The field of view of the video recording was divided longitudinally into 33 cm sections and the flight behaviour of the males in these sections was measured and compared as they approached from 233 cm to 50 cm downwind of the pheromone source. As the males approached the source, their mean ground speeds decreased. The mean values of their track angles increased with respect to due upwind (0 degree ), indicating movement more across the wind. These changes resulted mainly from the males decreasing their air speeds as they progressed up the plume toward the source. They did not change the average direction of their steering (course angle). Thus, the increase in track angles resulted from the males allowing themselves to drift more in the wind as they approached the odour source. The males also increased their average rate of counterturning as they approached the source. The net result of all these behavioural changes was a track that slowed and grew narrower, giving the impression that the males were 'homing-in' on the pheromone source as they approached. Causes of these systematic changes in behaviour are considered with respect to the known systematic changes in pheromone plume structure as the distance to the source decreases.


Accession: 002308938

DOI: 10.1111/j.1365-3032.1994.tb01075.x



Related references

Male oriental fruit moth response to a combined pheromone-based attracticide formulation targeting both oriental fruit moth and codling moth (Lepidoptera: Tortricidae). Journal of Economic Entomology 98(2): 317-325, 2005

Male Oriental fruit moth response to a combined pheromone-based attracticide formulation targeting both Oriental fruit moth and codling moth (Lepidoptera: Tortricidae). Journal of Economic Entomology 98(2): 317-325, 2005

Microplot trials of pheromone dispensers for confusion of males of the oriental fruit moth, Cydia molesta, and the plum fruit moth, Cydia funebrana. Ochrana Rostlin 26(3): 223-233, 1990

Sex pheromone dosage and blend specificity of response by Oriental fruit moth males. Entomologia Experimentalis et Applicata, 303: 269-279, 1981

Sex pheromones of the oriental fruit fly and the melon fly: mating behaviour, bioassay method, and attraction of females by live males and by suspected pheromone glands of males. Environmental Entomology, 71: 107-112, 1978

Capture of the Oriental fruit moth, the pecan bud moth, and the lesser appleworm in Georgia field trials with isomeric blends of 8-dudecenyl acetate and air-permeation trials with Oriental fruit moth pheromone. Environmental Ent, 45: 822-824, 1975

Captures of the oriental fruit moth the pecan bud moth and the lesser appleworm in georgia usa field trials with isomeric blends of 8 dodecenyl acetate and air permeation trials with the oriental fruit moth pheromone. Environmental Entomology 4(5): 822-824, 1975

Captures of the oriental fruit moth, the pecan bud moth, and the lesser appleworm in Georgia field trials with isomeric blends of 8-dodecenyl acetate and air-permeation trials with the oriental fruit moth pheromone. Environmental Entomology 4(5): 822-824, 1975

Sex pheromone dosage and blend specificity of response by oriental fruit moth grapholitha molesta males. Entomologia Experimentalis et Applicata 30(3): 269-279, 1981

The effects of pheromone concentration on the flight behaviour of the oriental fruit moth, Grapholitha molesta. Physiological Entomology, 74: 423-434, 1982