Evaluation and modeling of synergy to pheromone and plant kairomone in American palm weevil

BMC Chemistry

Table 1 Responses of American palm weevils (n = 9 males + 9 females) simultaneously exposed to synthetic aggregation pheromone (P: 3×10^-³ ng/s), natural odor of fermented sugar cane (K: including 90% ethyl acetate delivered at 0.33 ng/s), mixture of both (P+K), and odorless air (control) in a 4-arm olfactometer, according to the relative positions of the odors delivered at constant flow rates from aqueous solutions.

Response criterion (%)	Relative position of stimuli: P = K opposite	Stimulus in olfactometer arm
		Control	K	P	P+K
First choice: arm entered first ¹	P	0	22	22	56 **
	K	6	33	28	33
	Control	0	29	6	65 ***
Mean time in arm after 10 min ²	P	21 ^b	21 ^ab	15 ^b	43 ^a
	K	14 ^b	17 ^b	29 ^ab	40 ^a
	Control	15 ^b	19 ^b	19 ^b	47 ^a

¹Significantly differs from random with: **: p-value < 0.01; ***: p-value < 0.001 (Binomial Tests).
²Mean times in arm, at a given relative position, with same letter do not differ significantly (Newman-Keuls' tests; p-value < 0.05).

ISSN: 2661-801X