Host-Related Olfactory Behavior in a Fruit-Piercing Moth (Lepidoptera: Erebidae) in Far Eastern Russia.
The host preference of the economically important fruit piercing moth, Calyptra lata (Butler 1881), was studied when exposed to different fruits and the odors of those fruits in enclosed feeding assays and in a two-choice olfactometer. The fruits consisted of three ripe and locally available types: raspberries, cherries and plums. Moths were released in cages with the ripened fruit and observed for any feeding events, which were then documented. Moths fed on both raspberries and cherries, but not on plums. To test the role of olfactory cues in fruit preference, male moths were released singly in the two choice olfactometer, with one type of fruit odor released in one arm and background control air in the other. The behavior of the moths was recorded on video. Parameters scored were 1) time to take off, 2) flight duration and 3) total time to source contact. The moths showed a significant preference for raspberry odor, exhibited a neutral response to cherry odor and significantly avoided the odor of plums. These results indicate that Calyptra lata demonstrates selective polyphagic feeding behavior and uses olfactory cues from both preferred and non-preferred fruits to detect and locate potential food sources. The possible implications for pest control are discussed.
Department of Entomology, Purdue University, 901 W State Street, West Lafayette, IN 47907.
Jennifer M
JM
Zaspel
Laboratory of Entomology, Institute of Biology and Soil Sciences Far Eastern Branch of Russian Academy of Sciences, RF-690022, Vladivostok, Russia.
Vladimir S
VS
Kononenko
Unit of Chemical Ecology, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden.
Rickard
R
Ignell
Unit of Chemical Ecology, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden sharon.hill@slu.se.
Sharon R
SR
Hill
D000818:Animals; D005247:Feeding Behavior; D005426:Flight, Animal; D005638:Fruit; D008297:Male; D009036:Moths / Q000254:growth & development / Q000502:physiology*; D055696:Olfactory Perception; D012426:Russia
Calyptra lata; fruit; host preference; olfaction; polyphagy