International Journal of Horticulture, 2017, Vol.7, No.28, 250-261
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Table 2 Efficacy of Flubendiamide 480 SC (Fame 480 SC) against fruit borer,
Diaphania indica
larvae in Gherkin (2
nd
season)
Tr.
No.
Treatment
Dosage
Pre-treatment
count (1 DBS)
Post-treatment counts (Number of larvae/meter row
length)
(g a.i./ha) Forml./ha (ml)
After I Spray
After II Spray After III Spray
5 DAS 10 DAS 5 DAS 10 DAS 5 DAS 10 DAS
T
1
Flubendiamide 480
SC (Fame 480 SC)
24
50
14.2
10.3
12.2
9.3
9.9
6.2
4.3
T
2
Flubendiamide 480
SC (Fame 480 SC)
36
75
13.2
9.4
11.4
7.5
8.4
5.3
3.4
T
3
Flubendiamide 480
SC (Fame 480 SC)
48
100
13.7
7.8
9.3
6.2
6.8
3.4
1.8
T
4
Flubendiamide 480
SC (Fame 480 SC)
60
125
14.5
5.3
7.1
3.8
4.9
1.7
0.7
T
5
Indoxacarb 14.5 SL
21.75
150
15.0
5.5
7.5
3.9
5.0
1.8
0.8
T
6
Lambda Cyhalothrin
5 EC
18.75
375
15.2
9.7
11.6
8.5
9.2
5.2
4.8
T
7
Untreated check
-
-
14.8
15.1
15.8
16.3 16.7
17.0
17.3
S.Em.±
-
-
0.7
0.8
0.7
0.7
0.6
0.5
0.2
C.D. (0.05)
-
-
N.S.
2.4
2.1
2.1
1.8
1.5
0.6
C.V. (%)
-
-
14.2
17.3
13.3
15.6 17.2
16.5
17.8
Note: DBS = Day before spray; DAS = Days after spray
At 10 days after third spray flubendiamide 480 SC @ 60 g a.i./ha (0.7 larvae/ meter row length) and indoxacarb
14.5 SL @ 21.75 g a.i./ha (0.8 larvae/ meter row length) were highly effective against fruit borer and were
significantly superior over rest of the insecticidal treatments. The next best treatment was flubendiamide 480 SC
@ 48 g a.i./ha (1.8 larvae/ meter row) which was significantly superior over flubendiamide 480 SC @ 36 g a.i./ha,
flubendiamide 480 SC @ 24 g a.i./ha and lambda cyhalothrin 5 EC @ 18.75 g a.i./ha with 3.4, 4.3 and 4.8 larvae
per meter row length, respectively (Table 2).
3.2 Fruit damage due to gherkin fruit borer,
Diaphania indica
and effect on yield
3.2.1 First season
Efficacy
At one day before second spray (
i.e.
10 days after first spray), flubendiamide 480 SC @ 60 g a.i./ha recorded
lowest fruit damage in (16.4%) and was significantly superior over rest of the treatments except indoxacarb 14.5
SL @ 21.75 g a.i./ha (17.5%) (Table 3).
At 5 and 10 days after second spray, flubendiamide 480 SC @ 60 g a.i./ha with 11.3 and 10.7 per cent fruit
damage, respectively was highly effective against fruit borer and was significantly superior over rest of the
insecticidal treatments except indoxacarb 14.5 SL @ 21.75 g a.i./ha with 12.4 and 11.5 per cent fruit damage,
respectively (Table 3).
At 5 days after third spray also, flubendiamide 480 SC @ 60 g a.i./ha with 6.2 per cent fruit damage was highly
effective against fruit borer and was significantly superior over rest of the insecticidal treatments except
indoxacarb 14.5 SL @ 21.75 g a.i./ha with 6.7 per cent fruit damage. The next best treatments included
flubendiamide 480 SC @ 48 g a.i./ha and flubendiamide 480 SC @ 36 g a.i./ha and were on par with each other.
The least effective treatments were flubendiamide 480 SC @ 24 g a.i./ha and lambda cyhalothrin 5 EC @ 18.75 g
a.i./ha which recorded highest fruit damage (14.3 and 15.2%, respectively) and were significantly superior over
untreated check (34.0%) (Table 3).
