Impact of the Invasive Brown Marmorated Stink Bug, Halyomorpha halys (Stål), in Mid-Atlantic Tree Fruit Orchards in the United States: Case Studies of Commercial Management

Table 2

Total number of targeted brown marmorated stink bug insecticide applications, mean interval (d) ± SEM between insecticide applications, and mean A.I.M. score ± SEM and total A.I.M. score in peach plots from 2010 to 2011 at four commercial orchards.

Orchard	Number of targeted		Mean interval insecticide		A.I.M. score
	insecticide applications		interval + SEM^*		Mean ± SEM^*		Total
	2010	2011	2010	2011	2010	2011	2010	2011
A	4	16	8.5 ± 1.0	6.7 ± 0.3	0.14 ± 0.03	0.30 ± 0.03	1.67	5.73
B	6	8	16.0 ± 1.9	15.7 ± 1.4	0.16 ± 0.03	0.25 ± 0.04	2.13	2.72
C	4	9	17.0 ± 3.2	14.1 ± 1.2	0.24 ± 0.06	0.30 ± 0.02	2.12	3.26
D	6	22	12.0 ± 2.6	4.5 ± 0.9	0.23 ± 0.05	0.18 ± 0.02	2.73	4.38
All Orchards	20	55	12.8 ± 1.2 a	8.1 ± 0.8 b	0.18 ± 0.02 a	0.25 ± 0.01 b	8.65	16.09

^∗Means for all orchards combined, compared between years within a paired column, followed by a different letter are significantly different (𝑃<0.05).