Int.J.Curr.Microbiol.App.

Sci (2018) 7(7): 4204-4207

International Journal of Current Microbiology and Applied Sciences

ISSN: 2319-7706 Volume 7 Number 07 (2018)
Journal homepage: http://www.ijcmas.com

Original Research Article https://doi.org/10.20546/ijcmas.2018.707.491

Evaluation of Different Insecticides against Onion Thrips

in Onion Seed Production

M. K. Pathak1, M. K. Pandey1*, R. C. Gupta1 and P. K. Gupta2

1
National Horticultural Research and Development Foundation, (NHRDF) Regional Research
Station, Chitegaon Phata, Nashik (Maharashtra), India
2
National Horticultural Research and Development Foundation, Head office, NHRDF,
Janakpuri, New Delhi, India

*Corresponding author

ABSTRACT

A field experiments was conducted at NHRDF, Regional Research Station, Chitegaon,

Keywords Nashik in three consecutive years during rabi 2013-14, 2014-15 and 2015-16 on onion
Onion, Seed crop, Thrips variety NHRDF Red-2 for the management of onion thrips through basal application and
tabaci, insecticides spray of different insecticides. The soil application of the treatments was given before
Article Info planting and spray was started at 10 DAP after the appearance of thrips and subsequently
sprays were given at ten days interval. The results showed that, significantly lowest mean
Accepted: thrips population (17. 21 nymphs/plant) and highest seed yield (4.91q/ha) were recorded in
28 May 2018 basal application of Chlorantraniliprole 0.4% @ 10Kg/ha and spray of Fipronil @ 0.1%,
Available Online: Carbosulfan @ 0.2%, Profenofos @ 0.1% and Spinosad @ 0.03%. The highest cost benefit
10 July 2018 ratio (1:4.19) was also recorded in the same treatment.

Introduction important export oriented vegetable crop

among the cultivated Alliums in India. It is
Onion is a cross pollinated crop and more than grown in rabi, kharif and late kharif season in
90% pollination is done by honey bee. Thrips India with the maximum area under
tabaci is the most important insect attacking cultivation covered during rabi season. India is
onion seed production crop and also spreading the second largest onion producing country in
viral diseases. Onion thrips (Thrips tabaci the world.
Lindeman) is the most important pest of onion
(Allium cepa L.) and cause significant yield Thrips (Thrips tabaci Lindeman) is a regular
losses globly (Lewis, 1997). The nymphs and and potential pest of onion and cause
adult of onion thrips feed leaves by piercing considerable loss as high as 90% in quality
and rasping the leaf tissues and causes and yield (Gupta et al., 1984). Failure to
lengthwise, silvery stippling or blotching on control this pest by timely and effective means
the onion leaves, resulting in the loss of causes considerable damage and results in
chlorophyll and reduced photosynthetic immense economic loss by remarkably
efficiency (Boateng et al., 2014). Onion is an reducing yield (Anonymous, 2000; Juan,
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2002). Confidor 200 SL (Imidachlorprid), 0.4% @ 10Kg/ha + Spray of (Fipronil@0.1%,

Tracer 240 SC (Spinosad) and Thiodan 35SC Carbosulfan @0.2%, Profenofos@0.1% and
were found effective against onion thrips in Spinosad @0.03%) and T7 (control). The soil
Pakistan (Ullah et al., 2010). application of treatments were given before
planting and spray was started at 10 DAP after
To find out the suitable management of thrips the appearance of the thrips and a total of 9
and avoid the losses caused by thrips in onion sprays were given at 10 days interval. The
seed crop, The field experiment was insecticide sprays were given in evening time
conducted at National Horticultural Research to avoid on dry toxic effect honey bee. All
and Development Foundation, Regional other agronomical practices were performed
Research Station Chitegaon, Nashik during as per need uniformly in all the treatments.
three consecutive years in rabi 2013-14, 2014- The picking of umbel was started after
15 and 2015-16 on onion variety NHRDF attaining the maturity of seed and a total 4-5
Red-2 through basal application and spray of pickings were done during cropping period.
different insecticides for thrips management. The data on thrips (Nymph) population were
counted at the stalk as well as umbel in 10
Materials and Methods plants marked randomly selected plants in
each treatment at 10 days interval before each
The field experiment was conducted at spray.
National Horticultural Research and
Development Foundation, Regional Research Results and Discussion
Station, Chitegaon, Nashik during rabi, 2013-
14, 2014-15 and 2015-16 seasons. Bulbs of The data presented in table 1 revealed that
onion variety NHRDF Red-2 were planted in a thrips population at different stages of growth
bed size of 5.0 m x 3.0 m at 45cm X 30cm of crop and seed yield were influenced
spacing. Randomized Block Design with 3 significantly due to different treatments. The
replication was followed. The treatments thrips population did not follow any definite
evaluated were T1 (Basal application of trend at different stages of growth, a mixed
Phorate 10G@ 15Kg/ha + Spray of Fipronil trend of increasing and decreasing the thrips
@0.1%, Carbosufan @0.2%, population was observed. Significantly lowest
Profenofos@0.1% and Spinosad @0.03%, T2 mean thrips population (17.21 nymphs/plant)
(Basal application of Cartaphydrochloride were recorded in T6 (Basal application of
4.0%@25Kg/ha + Spray of Fipronil @0.1%, Chlorantraniliprole 0.4% @ 10Kg/ha + Foliar
Carbosulfan @0.2%, Profenofos@0.1% and spray of Fipronil @ 0.1%, Carbosulfan @
Spinosad @0.03%, T3(Basal application of 0.2%, Profenofos @ 0.1% and Spinosad @
Carbofuran 3G@30kg/ha + spray of (Fipronil 0.03%). The highest seed yield (4091 q/ha)
@0.1%, Carbosulfan @0.2%, and C: B ratio (1:4.19) was also recorded in
Profenofos@0.1% and spinosad @0.03%, T4 treatment T6.
(Soil application of Fipronil 0.3G@25Kg/ha +
spray of (Fipronil @0.1%, Carbosulfan Pandey et al., (2013) recorded that lowest
@0.2%, Profenofos@0.1% and Spinosad thrips population and highest bulb yield with
@0.03%, T5 (Basal application of highest cost benefit ratio by applying fipronil.
Imidachlorprid 0.5G @20kg/ha + spray of The other workers also reported that fipronil
(Fipronil @0.1%, Carbosulfan @0.2%, and imidachlorprid reduced the thrips damage
Profenofos @0.1% and Spinosad @0.03%, severity and increased the onion bulb yield
T6(Basal application of Chlorantraniliprole (Ullah et al., 2010; Gachu et al., 2012).

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Table.1 Evaluation of different insecticides against thrips on onion seed production at NHRDF,
RRS, Nashik (pooled data of rabi 2013-14, 2014-15, 2015-16)

Thrips Population (nymphs/plant)

Treatments 10DAP 20DAP 30DAP 40DAP 50DAP 60DAP 70DAP 80DAP 90DAP Overall Seed C: B
mean yield(q/ha) Ratio
thrips
population
T1 27.42 20.33 18.62 16.64 28.54 26.22 32.69 23.62 20.49 20.70 4.13 1:2.68
T2 26.36 18.60 23.91 15.71 30.14 24.11 33.47 23.87 19.26 20.94 4.17 1:2.74
T3 25.47 22.69 27.22 16.03 31.13 26.29 34.40 23.27 17.29 21.55 4.20 1:2.73
T4 23.67 19.16 15.29 15.20 31.91 24.60 31.24 22.56 23.67 20.31 4.29 1:2.95
T5 27.40 18.07 20.84 13.73 31.22 22.58 29.53 21.16 16.21 19.33 4.53 1:3.48
T6 24.47 16.27 21.82 13.69 26.7 19.38 23.58 16.11 11.93 17.21 4.91 1:4.19
T7 49.93 53.89 80.39 42.20 66.60 59.60 65.34 35.91 48.66 44.75 2.83 -
S.Em± 1.98 1.52 2.66 1.42 2.97 1.78 3.24 1.38 1.52 0.73 0.09 -
CD at 5% 4.01 3.09 5.39 2.89 6.02 3.6 6.57 2.8 3.09 1.48 0.18 -

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How to cite this article:

Pathak M. K., M. K. Pandey, R. C. Gupta and Gupta P. K. 2018. Evaluation of Different

Insecticides against Onion Thrips in Onion Seed Production. Int.J.Curr.Microbiol.App.Sci.
7(07): 4204-4207. doi: https://doi.org/10.20546/ijcmas.2018.707.491

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