Effects of light on the tritrophic interaction between kidney bean plants,two-spotted spider mites and predatory mites, Amblyseius womersleyi (Acari: Phytoseiidae)

Citation
T. Maeda et al., Effects of light on the tritrophic interaction between kidney bean plants,two-spotted spider mites and predatory mites, Amblyseius womersleyi (Acari: Phytoseiidae), EXP APPL AC, 24(5-6), 2000, pp. 415-425
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Entomology/Pest Control
Journal title
EXPERIMENTAL AND APPLIED ACAROLOGY
ISSN journal
0168-8162 → ACNP
Volume
24
Issue
5-6
Year of publication
2000
Pages
415 - 425
Database
ISI
SICI code
0168-8162(2000)24:5-6<415:EOLOTT>2.0.ZU;2-U
Abstract
By analyzing the volatiles from Tetranychus urticae-infested kidney bean pl ants (Phaseolus vulgaris) at different times for two days, we found that th ey were mainly produced in the light. Tetranychus urticae showed a higher o viposition rate and spent more time feeding during the day (in the light) t han at night (in the dark). Infested leaves placed in the light attracted t he predatory mite Amblyseius womersleyi, whereas those that were placed in the dark for at least 2 h in daytime did not. This indicates that presence or absence of light affects the production of herbivore-induced plant volat iles. Amblyseius womersleyi dispersed more frequently and consumed more T. urticae eggs during the day (in the light) than at night (in the dark), whe reas their oviposition rate did not differ between day and night. Presence or absence of herbivore-induced plant volatiles in the surroundings did not affect dispersal, predation or oviposition rates of A. womersleyi. These r esults show that A. womersleyi's behavior coincides with the production pat tern of herbivore-induced plant volatiles.