Broccoli, cabbage and mustard greens. Seven field trials on broccoli, ten on cabbage, and seven on mustard greens were conducted at various locations throughout the USA from 1991 to 1993 (Chen et al., 1994c). The plot sizes were 0.28 to 2.5 ha for broccoli, 0.60 to 1.23 ha for cabbage, and 0.14 to 2.51 ha for mustard greens. Samples of cabbage with and without wrapper leaves were analysed in some of the trials. The residues in the samples without wrapper leaves were generally significantly lower. mg/kg).
Selected samples analysed for RH-0897 showed no residues above the limit of determination (0.01
Dong,(1995b) compared the 2SC and 70WP formulations with 7 to 9 applications at a rate of 0.140 kg ai/ha. The plot sizes were 0.09 to 1.24 ha for broccoli, 0.60 to 3.01 ha for cabbage, and 1.24 to 1.48 ha for mustard greens. Samples were analysed by the method of Chen et al. (1994a).
The results of the trials are shown in Tables 30, 31 and 32.
The residues from treatments approximating proposed GAP in the USA were 0.1-0.34 mg/kg in broccoli, <0.01-0.5 mg/kg in cabbage with and without wrapper leaves, and 0.65-5.6 mg/kg in mustard greens.
Table 30. Residues of tebufenozide in broccoli, USA, 1991-1994.
|
State, year |
Form. |
Application |
PHI, days |
Residue, mg/kg |
Reference |
||
|
No. |
kg ai/ha |
kg ai/hl |
|||||
|
OR |
SC |
8 |
0.14 |
0.044-0.047 |
0 |
0.67 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
0.24 |
|
|
TX |
SC |
8 |
0.14 |
0.047 |
0 |
0.45 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
0.11 |
|
|
CA |
SC |
8 |
0.14 |
0.042 |
0 |
0.33 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
0.09 |
|
|
OR |
SC |
9 |
0.14 |
0.03 |
7 |
0.11 |
Chen, 1994c |
|
1992 |
|
|
|
|
|
|
|
|
VA |
SC |
7 |
0.14 |
0.038 |
7 |
0.330 |
Chen, 1994c |
|
1992 |
|
|
|
|
|
|
|
|
TX |
SC |
8 |
0.14 |
0.047-0.050 |
6 |
0.01 |
Chen, 1994c |
|
1992 |
|
|
|
|
|
|
|
|
CA |
SC |
8 |
0.14 |
0.050 |
0 |
0.46 |
Chen, 1994c |
|
1993 |
|
|
|
|
7 |
0.07 |
|
|
|
|
|
|
|
14 |
0.05 |
|
|
CA |
SC |
7 |
0.140 |
0.025 |
0 |
0.36 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
0.1 |
|
|
CA |
WP |
7 |
0.14 |
0.025 |
0 |
0.32 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
0.11 |
|
|
CA |
SC |
9 |
0.14 |
0.025 |
0 |
0.75 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
0.31 |
|
|
CA |
WP |
9 |
0.14 |
0.025 |
0 |
0.94 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
0.34 |
|
Table 31. Residues of tebufenozide in cabbage, USA, 1991-1994.
|
State, year |
Form. |
Application |
PHI, days |
Residue, mg/kg |
Reference |
||
|
No. |
kg ai/ha |
kg ai/hl |
|||||
|
CA |
SC |
8 |
0.14 |
0.075 |
0 |
0.39 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
0.17 |
|
|
NY |
SC |
8 |
0.14 |
0.026-0.028 |
0 |
1.45 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
0.09 |
|
|
TX |
SC |
8 |
0.14 |
0.047 |
0 |
0.241 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
0.011 |
|
|
|
|
|
|
|
0 |
1.1 |
|
|
|
|
|
|
|
7 |
0.11 |
|
|
GA |
SC |
9 |
0.14 |
0.075 |
0 |
0.071 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
0.011 |
|
|
|
|
|
|
|
0 |
1.3 |
|
|
|
|
|
|
|
7 |
0.38 |
|
|
OH |
SC |
7 |
0.14 |
0.048-0.054 |
0 |
<0.011 |
Chen, 1994c |
|
1992 |
|
|
|
|
8 |
<0.011 |
|
|
|
|
|
|
|
0 |
<0.01 |
|
|
|
|
|
|
|
8 |
0.004 |
|
|
FL |
SC |
7 |
0.14 |
0.015 |
9 |
<0.011 |
Chen, 1994c |
|
1992 |
|
|
|
|
9 |
0.03 |
|
|
CA |
SC |
8 |
0.14 |
0.05 |
0 |
1.5 |
Chen, 1994c |
|
1993 |
|
|
|
|
7 |
1.0 |
|
|
|
|
|
|
|
14 |
0.91 |
|
|
TX |
SC |
7 |
0.14 |
0.045-0.062 |
0 |
0.021 |
Chen, 1994c |
|
1993 |
|
|
|
|
7 |
<0.011 |
|
|
|
|
|
|
|
14 |
<0.011 |
|
|
|
|
|
|
|
0 |
0.05 |
|
|
|
|
|
|
|
7 |
0.30 |
|
|
|
|
|
|
|
14 |
0.06 |
|
|
WI |
SC |
7 |
0.14 |
0.057-0.064 |
0 |
<0,011 |
Chen, 1994c |
|
1993 |
|
|
|
|
7 |
0.011 |
|
|
|
|
|
|
|
0 |
0.01 |
|
|
|
|
|
|
|
7 |
0.04 |
|
|
VA |
SC |
7 |
0.14 |
0.037 |
7 |
0.53 |
Chen, 1994c |
|
1993 |
|
|
|
|
|
|
|
|
TX |
SC |
9 |
0.14 |
0,05-0.075 |
0 |
0.8 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
0.78 |
|
|
TX |
WP |
9 |
0.14 |
0.05-0.075 |
0 |
1.2 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
1.3 |
|
|
FL |
SC |
9 |
0.14 |
0.05 |
0 |
3.6 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
4.6 |
|
|
FL |
WP |
9 |
0.14 |
0.05 |
0 |
5.2 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
4.3 |
|
1 cabbage head without wrapper leaves
Table 32. Residues of tebufenozide in mustard greens, USA, 1991-1994.
|
State, year |
Form. |
Application |
PHI, days |
Residue, mg/kg |
Reference |
||
|
No. |
kg ai/ha |
kg ai/hl |
|||||
|
CA |
SC |
8 |
0.14 |
0.075 |
0 |
8.2 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
3.9 |
|
|
TX |
SC |
8 |
0,14 |
0.047 |
0 |
4.1 |
Chen, 1994c |
|
1991 |
|
|
|
|
|
|
|
|
CA |
SC |
8 |
0.14 |
0.075 |
0 |
5.5 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
6.9 |
|
|
CA |
SC |
8 |
0.14 |
0.075 |
0 |
5.6 |
Chen, 1994c |
|
1991 |
|
|
|
|
7 |
4.4 |
|
|
NJ |
SC |
7 |
0.14 |
0.043 |
7 |
5.6 |
Chen, 1994c |
|
1992 |
|
|
|
|
|
|
|
|
NJ |
SC |
7 |
0.14 |
0.043 |
0 |
4.1 |
Chen, 1994c |
|
1993 |
|
|
|
|
7 |
1.6 |
|
|
AZ |
SC |
7 |
0.14 |
0.060 |
0 |
7.1 |
Chen, 1994c |
|
1993-1994 |
|
|
|
|
7 |
2.6 |
|
|
|
|
|
|
|
14 |
1.6 |
|
|
CA |
SC |
7 |
0.14 |
0.025 |
0 |
4.3 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
0.65 |
|
|
CA |
WP |
7 |
0.14 |
0.025 |
0 |
2.5 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
0.93 |
|
|
TX |
SC |
8 |
0.14 |
0.050-0.075 |
0 |
5.1 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
1.9 |
|
|
TX |
WP |
8 |
0.14 |
0.050-0.075 |
0 |
6.8 |
Dong, 1995b |
|
1994 |
|
|
|
|
7 |
2.4 |
|
Chilli peppers. A single field trial was carried out in Thailand on Chilli peppers with the 20SC formulation at three different rates on a 0.68 ha plot (Ishii and Higuchi, 1994). Three were 5 applications at intervals of 10 days. The trial was not according to GAP or GLP. The results are shown in Table 33.
Table 33. Residues of tebufenozide in Chilli peppers, Thailand, 1993 (Ishii and Higuchi, 1994).
|
Form. |
Application |
PHI, days |
Residue, mg/kg1 |
||
|
No. |
kg ai/ha |
kg ai/hl |
|||
|
SC |
5 |
0.10 |
0.013 |
0 |
0.18 |
|
|
|
|
|
3 |
0.08 |
|
|
|
|
|
7 |
0.06 |
|
|
|
|
|
14 |
0.04 |
|
SC |
5 |
0.15 |
0.020 |
0 |
0.21 |
|
|
|
|
|
3 |
0.14 |
|
|
|
|
|
7 |
0.1 |
|
|
|
|
|
14 |
0.04 |
|
SC |
5 |
0.20 |
0.027 |
0 |
0.36 |
|
|
|
|
|
3 |
0.18 |
|
|
|
|
|
7 |
0.14 |
|
|
|
|
|
14 |
0.11 |
|
SC |
5 |
0.30 |
0.040 |
0 |
0.8 |
|
|
|
|
|
3 |
0.5 |
|
|
|
|
|
7 |
0.26 |
|
|
|
|
|
14 |
0.18 |
1 The reported values are average from duplicate analyses
Table 34. Residues of tebufenozide in Chinese kale, Thailand, 1993 (Ishii and Higuchi, 1994).
|
Form. |
Application |
PHI, days |
Residue mg/kg |
||
|
No. |
kg ai/ha |
kg ai/hl |
|||
|
SC |
5 |
0.125 |
0.017-0.027 |
0 |
8,0 |
|
|
|
|
|
3 |
3.8 |
|
|
|
|
|
5 |
2.4 |
|
|
|
|
|
10 |
0.73 |
|
|
|
|
|
15 |
0.35 |
|
SC |
5 |
0.150 |
0.020-0.032 |
0 |
11.0 |
|
|
|
|
|
3 |
5,3 |
|
|
|
|
|
5 |
3.2 |
|
|
|
|
|
10 |
0.68 |
|
|
|
|
|
15 |
0.54 |
|
SC |
5 |
0.250 |
0.033-0.053 |
0 |
17.2 |
|
|
|
|
|
3 |
8.8 |
|
|
|
|
|
5 |
5.2 |
|
|
|
|
|
10 |
1.5 |
|
|
|
|
|
15 |
0.88 |
