Mixtures of fluopyram and abamectin for management of Meloidogyne incognita in tomato
Publié en ligne: 13 janv. 2021
Pages: 1 - 11
© 2021 Qing-Qing Li et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Effects of the different treatments on the physiological growth indicators of tomato in pot trials (60 DAT).
|
Growth rate (%) |
Code |
Plant height |
Stem diameter |
Fresh root weight |
Fresh shoot weight |
Root length |
F |
17.44 ± 5.23 ab |
9.84 ± 3.24 ab |
28.71 ± 9.09 ab |
29.51 ± 10.29 a |
15.51 ± 6.38 a |
A |
10.62 ± 6.26 ab |
3.48 ± 9.68 b |
22.30 ± 4.90 b |
14.34 ± 8.82 abc |
11.23 ± 1.91 a |
FA1 |
8.66 ± 4.35 b |
2.50 ± 6.63 b |
7.93 ± 1.77 c |
8.83 ± 8.39 c |
5.62 ± 5.11 a |
FA2 |
13.51 ± 7.34 ab |
6.71 ± 3.36 ab |
27.57 ± 9.01 ab |
24.14 ± 13.95 ab |
15.51 ± 1.59 a |
FA3 |
20.84 ± 4.71 a |
14.89 ± 6.73 a |
40.30 ± 4.34 a |
29.78 ± 2.56 a |
21.57 ± 8.34 a |
Ctrl |
– |
– |
– |
– |
– |
Toxicities of fluopyram and abamectin against second-stage juveniles (J2) of Meloidogyne incognita (48 h).
Pesticides |
Mass ratio of active ingredient |
Slope ± SE |
LC50 (mg/L) |
95% Confidence limits (mg/L) |
r
|
p
|
χ
2
|
CTC |
Fluopyram |
– |
1.43 ± 0.22 |
2.53 |
1.41–4.52 |
0.96 |
0.0082 |
120.28 |
– |
Abamectin |
– |
1.56 ± 0.14 |
1.62 |
1.34–1.95 |
0.98 |
0.0017 |
49.69 |
– |
Fluopyram:Abamectin |
1:1 |
1.65 ± 0.26 |
0.99 |
0.71–1.40 |
0.96 |
0.0084 |
139.20 |
198 |
|
1:3 |
2.04 ± 0.40 |
0.78 |
0.50–1.24 |
0.95 |
0.0150 |
92.22 |
227 |
|
1:5 |
1.29 ± 0.29 |
0.64 |
0.37–1.12 |
0.93 |
0.0212 |
321.94 |
268 |
|
3:1 |
1.89 ± 0.18 |
1.99 |
1.64–2.42 |
0.98 |
0.0021 |
79.68 |
111 |
|
5:1 |
1.81 ± 0.22 |
3.16 |
2.42–4.11 |
0.98 |
0.0038 |
100.36 |
73 |
Control efficacy of the different treatments based on the number of Meloidogyne incognita in field soil.
|
|
|
Control efficacy (%) |
Site/year |
Code |
Initial no. of nematodes (nematodes/100 g soil) |
30 DAT |
60 DAT |
LW/2018 |
F |
1780.88 ± 203.11 a |
29.52 ± 1.60 b |
37.31 ± 7.09 b |
|
A |
1439.19 ± 201.26 a |
15.43 ± 3.76 c |
29.77 ± 1.73 b |
|
FA1 |
1520.80 ± 573.47 a |
12.86 ± 3.04 c |
17.75 ± 4.75 c |
|
FA2 |
1441.61 ± 124.94 a |
35.12 ± 1.89 b |
53.19 ± 1.75 a |
|
FA3 |
1658.66 ± 277.33 a |
53.04 ± 5.27 a |
58.13 ± 3.75 a |
|
Ctrl |
1638.89 ± 411.11 a |
– |
– |
DY/2019 |
F |
1288.33 ± 223.45 a |
31.50 ± 1.80 b |
38.67 ± 3.79 b |
|
A |
1457.41 ± 159.75 a |
14.67 ± 2.51 c |
30.67 ± 2.52 b |
|
FA1 |
1523.16 ± 188.47 a |
15.70 ± 2.25 c |
22.46 ± 3.50 c |
|
FA2 |
1287.33 ± 182.67 a |
38.33 ± 2.30 b |
52.53 ± 4.10 a |
|
FA3 |
1461.12 ± 160.25 a |
57.50 ± 3.61 a |
59.73 ± 1.60 a |
|
Ctrl |
1314.16 ± 110.32 a |
– |
– |