Susceptibility of iris (Iridaceae) to larval infestation by Neorthacheta dissimilis (Diptera: Scathophagidae) Author Doyon, Josée Institut de Recherche en Biologie Végétale, Département de sciences biologiques, Université de Montréal, 4101 rue Sherbrooke Est, Montréal, Québec, H 1 X 2 B 2, Canada, Author Savage, Jade Department of Biological Science, Bishop’s University, 2600 rue du Collège, Sherbrooke, Québec, J 1 M 1 Z 7, Canada, Author Bailleul, Stéphane Jardin Botanique de Montréal, Espace pour la vie, 4101 rue Sherbrooke Est, Montréal, Québec, H 1 X 2 B 2, Canada, and Author Labelle, Stéphane Biodôme de Montréal, Espace pour la vie, 4777 Pierre- De-Coubertin, Montréal, Québec, H 1 V 1 B 3, Canada Author Brodeur, Jacques Institut de Recherche en Biologie Végétale, Département de sciences biologiques, Université de Montréal, 4101 rue Sherbrooke Est, Montréal, Québec, H 1 X 2 B 2, Canada, text The Canadian Entomologist 2021 e 5 2021-12-01 154 1 1 8 https://doi.org/10.4039/tce.2021.53 journal article 10.4039/tce.2021.53 1918-3240 15701560

Table 2. Infestation (%) of Neorthacheta dissimilis per buds and flowers in various iris classes of subgenus Iris and subgenus Limniris at the Montréal Botanical Garden, Montréal, Québec, Canada in 2020.

			Buds and flowers per stalk
n, number of buds or flowers; see Table 1 for the number of flower stalks. SD, standard deviation.
Subgenera	Class	n	X ± SD (range)	Infestation (%)
Iris	Bearded	343	5.36 ± 1.86 (1 – 10)	31
	Intermediate bearded	122	2.73 ± 1.16 (1 – 5)	95
	Miniature darf bearded	61	2.38 ± 0.92 (1 – 5)	75
	Miniature tall bearded	60	4.85 ± 1.88 (1 – 7)	48
	Remontant	16	3.20 ± 0.98 (2 – 5)	19
	Standard dwarf bearded	157	2.71 ± 1.31 (1 – 7)	87
	Tall bearded	1255	4.78 ± 1.66 (1 – 11)	32
	Species	79	3.04 ± 2.23 (1 – 8)	39
Limniris	Japanese	122	1.94 ± 0.47 (1 – 3)	40
	Siberian	565	2.67 ± 1.36 (1 – 11)	36
	Species of Ensatae	12	2.00 ± 0.58 (1 – 3)	67
	Species of Laevigatae	17	2.43 ± 0.73 (1 – 3)	53
	Species of Longipetalae	24	2.40 ± 0.66 (1 – 3)	100
	Species of Lophiris	10	2.00 ± 0.00 (2)	50
	Species of Sibirica	20	1.54 ± 0.75 (1 – 3)	80
	Species of Spuria	76	3.04 ± 1.40 (2 – 8)	45