Table 2.

Area covered with ground-based insecticide spraying during the 3 weeks before and after the aerial spray applications—Collin, Dallas, Denton, and Tarrant Counties, Texas, 2012

	Total area	Area covered with ground-based spraying before aerial applications	Area covered with ground-based spraying after aerial applications
	Square kilometers	Square kilometers (%)	Square kilometers (%)
Aerial sprayed areas
Area 1	1,448	254 (18)	75 (5)
Area 2	303	41 (14)	160 (53)
Area 3	1,142	3 (< 1)	21 (2)
Total	2,893	298 (10)*	256 (9)*
Aerial unsprayed areas
Collin County	2,266	80 (4)	127 (6)
Dallas County	756	213 (28)	572 (76)
Denton County	1,393	31 (2)	10 (1)
Tarrant County	2,168	10 (1)	29 (1)
Total	6,583	334 (5)†	738 (11)†

^*P = 0.3 for the difference in the proportions covered before and after aerial spraying.

^†P < 0.001 for the difference in the proportions covered before and after aerial spraying.