Aphid Alert 1999, No. 7a, July 29

Summary of aphid captures per trap in 1999 compared to same dates in 1998

Aphids captured per trap (mean all locations)

1998

1999
Week ending PVY vectors* GPA
5-Jul 0.22 0
12-Jul 0.86 0.04
19-Jul 7.75 0.19
27-Jul 22.26 0.69
2-Aug 27.92 0.69
9-Aug 83.97 0.42
16-Aug 223.76 2.2
23-Aug 53.15 2.08
30-Aug 67.34 2.88
5-Sep 28.77 1.92
13-Sep 8.13 0.26
20-Sep 3.75 0.4
27-Sep 1.75 0
4-Oct 2.28 0.08
Week ending PVY vectors* GPA 
14-Jun 0.36 0
22-Jun 2.08 0.03
29-Jun 2.94 0.06
6-Jul 4.27 0.27
13-Jul 5.08 0.51
20-Jul 10.86 0.56
27-Jul 19.16 0.87
3-Aug 27.95 1.35
11-Aug 17.93 2.87
17-Aug 8.82 4.3
25-Aug 8.5 3.19
31-Aug 10.33 2.04
7-Sep 8 0.55
13-Sep 4 0.27

1999