Table 3.
Attraction of Whittleia retiella males to bait series 2 at four different field observations in 2017 (Obs 1–3) and 2018 (Obs 4–5)
| Compound | Bait composition | |||||
|---|---|---|---|---|---|---|
| Isoprop-C5DA | 100 | 10 | 30 | 50 | ||
| (S)-2b-C5DA | 100 | 100 | 100 | 100 | ||
| Blank | BL | |||||
| Obs 1 N = 4 | ● | ● | ||||
| Obs 2 N = 1 | ● | ● | ||||
| Obs 3 N = 6 | ● | ● | ||||
| Obs 4 N = 2* | ||||||
| Obs 5 N = 10 | ● | ● | ● | ● | ||
Isoprop-C5DA = 1-methylethyl (5Z)-dec-5-enoate and (S)-2b-C5DA = 1S-methylpropyl (5Z)-dec-5-enoate. Numbers represent μg loading of different synthetic compounds on the baits. Blank baits were loaded with n-hexane (hx) only. Black dots represent baits visited by one or more males at each observation, respectively. N = number of approaching males at each observation. At observations 1–4, the baits were displayed in parallel with bait series 1 (see Table 2)
*No visits from males to bait series 2 at this occasion, but to bait series 1, which was displayed in parallel