Chemistry Reference
In-Depth Information
The percentage defoliation caused by CPB feeding was significantly (P<0.05) less in plots
treated with imidacloprid or thiamethoxam as compared with dinotefuran or plots that
received no insecticide after 12 Jun in both the low and high rainfall regimens (Fig. 4). The
percentage defoliation in plots treated with dinotefuran was less than in plots that received
no insecticide but greater than either imidacloprid or thiamethoxam in the low rainfall
regimen, but was similar to the plots that received no insecticide in the high rainfall
regimen, although these differences were not significant (P<0.05).
40
b
Low rainfall
35
c
30
c
b
25
Venom
Admire
Platinum
Ck
20
bc
abc
15
10
5
a
a
a
a
0
28-May
2-Jun
7-Jun
12-Jun
17-Jun
22-Jun
70
High rainfall
Venom
Admire
Platinum
Ck
b
60
50
c
40
b
30
bc
ab
ab
20
ab
10
a
a
a
a
0
28-May
2-Jun
7-Jun
12-Jun
17-Jun
22-Jun
Figure 3.
Effect of two levels of simulated rainfall on populations of Colorado potato beetle larvae on
potatoes treated with neonicotinoid insecticides at planting, Bridgeton, NJ. 2007.
