Abstract
A field experiment was conducted during Kharif, 2013–14 at Main Agricultural Research Station to study the performance of sequential application of insecticides with different mode of action against sucking pests in Bt cotton. The results indicated that among different spray sequences, the sequential application of acetamiprid 20 SP - chlorfenapyr 10 SC - fipronil 5 EC - bifenthrin 10 EC- diafenthiuron 50 WP recorded significantly less number of sucking pests which ultimately reflected in recording highest seed cotton yield of 25.92 q/ha with highest B:C ratio of 3.37 which was followed by spray sequences of bifenthrin 10 EC - diafenthiuron 50 WP - acetamiprid 20 SP - chlorfenapyr 10 SC - fipronil 5 EC and fipronil 5 EC- bifenthrin 10 EC - diafenthiuron 50 WP- acetamiprid 20 SP - chlorfenapyr 10 SC in reducing thrips population with higheryield of 24.21 and 22.98 q/ha and B:C ratio of 3.15 and 3.12, respectively. The lowest B: C ratio of 2.58 was recorded in chlorfenapyr 10 SC - fipronil 5 EC bifenthrin 10EC- Nimbecidine - diafenthiuron 50WP.
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Claims 7
Claim · model-written summary
The acetamiprid-first sequence recorded significantly fewer sucking pests.
Verbatim
e0“the sequential application of acetamiprid 20 SP - chlorfenapyr 10 SC - fipronil 5 EC - bifenthrin 10 EC- diafenthiuron 50 WP recorded significantly less number of sucking pests”
e1“among different spray sequences”
t0“Bt Cotton”
Claim · model-written summary
The acetamiprid-first sequence yielded 25.92 q/ha seed cotton, the highest reported.
Verbatim
e0“highest seed cotton yield of 25.92 q/ha”
t0“Bt Cotton”
Claim · model-written summary
The acetamiprid-first sequence had the highest B:C ratio, 3.37.
Verbatim
e0“highest B:C ratio of 3.37”
t0“Bt Cotton”
Claim · model-written summary
The bifenthrin-first sequence yielded 24.21 q/ha.
Verbatim
e0“higheryield of 24.21 and 22.98 q/ha”
t0“Bt Cotton”
Claim · model-written summary
The fipronil-first sequence yielded 22.98 q/ha.
Verbatim
e0“higheryield of 24.21 and 22.98 q/ha”
t0“Bt Cotton”
Claim · model-written summary
The two following sequences had B:C ratios of 3.15 and 3.12, respectively.
Verbatim
e0“B:C ratio of 3.15 and 3.12”
t0“Bt Cotton”
Claim · model-written summary
The chlorfenapyr-first sequence had the lowest B:C ratio, 2.58.
Verbatim
e0“The lowest B: C ratio of 2.58 was recorded in chlorfenapyr 10 SC - fipronil 5 EC bifenthrin 10EC- Nimbecidine - diafenthiuron 50WP”
t0“Bt Cotton”
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