N. K. Dutta
Senior Scientific Officer
Entomology Division, BARI, Gazipur
M. Mahmudunnabi
Scientific Officer
Entomology Division, BARI, Gazipur
A. K. M. Z. Rahman
Senior Scientific Officer
Entomology Division, BARI, Gazipur
D. Sarker
Principal Scientific Officer
Entomology Division, BARI, Gazipur
S. N. Alam
Chief Scientific Officer
Entomology Division, BARI, Gazipur,
Field investigations were carried out in Rabi, 2012-13 in the research field of BARI, Gazipur to evaluate the effectiveness of some management options against chilli thrips. The management approach comprising of sticky white trap + Chlorfenapyr 10SC @ 1ml/L of water appeared as the best management option against thrips recording the lowest thrips population (2.34/5 twigs) followed by sticky white trap + Pymetrozine 50 WG (3.75/ 5 twigs). The highest yield increase (86.65%) over control as well as the highest benefit cost ratio (BCR) (5.93) was achieved from sticky white trap + Chlorfenapyr 10SC followed by sticky white trap + Pymetrozine 50 WG.
Management, Thrips, Chilli
Pest Management
1.To know the population dynamics of thrips in chilli and
2.To find out the cost effective management options against thrips in chilli.
The experiment was conducted in the research field of BARI, Gazipur during 2012-13. Chilli seedlings were transplanted in a plot of 4m x 5.5m. The experiment was laid out in RCBD having three replications and 8 treatments including control. Manures and fertilizers were applied as per recommended dose. Recommended agronomic practices were followed to raise a good crop.
The treatments were assigned as follows:
T1= Installation of sticky white trap @ 40 traps/ha + Azadirachtin (Fytomax) 3EC @ 1ml/l of water (3 sprays at fortnightly interval starting from the first initiation of the pest attack)T2= Sticky white trap + Chlorfenapyr (Intrepid) 10SC @ 1ml/l of water (3 sprays at fortnightly interval starting from the first initiation of the pest attack)T3= Sticky white trap + Pymetrozine (Agrocin) 50 WG@0.5ml/l of water (3 sprays at fortnightly interval starting from the first initiation of the pest attack)T4= Installation of sticky white trap @ 40 traps/ha T5= Pymetrozine (Agrocin) 50 WG@ 1ml/l of water (3 sprays at fortnightly interval starting from the first initiation of the pest attack)T6= Chlorfenapyr 10SC @ 1ml/l of water (3 sprays at fortnightly interval starting from the first initiation of the pest attack)T7= Azadirachtin (Fytomax) 3EC @ 1ml/l of water (3 sprays at fortnightly interval starting from the first initiation of the pest attack) and
T8= Untreated control
Annual report 2012-2013, Entomology Division, BARI, Gazipur
30,000.00
The management approach comprising of sticky white trap + Chlorfenapyr 10SC @ 1ml/L of water appeared as the best management option against thrips recording the lowest thrips population (2.34/5 twigs) followed by sticky white trap + Pymetrozine 50 WG (3.75/ 5 twigs). The highest yield increase (86.65%) over control as well as the highest benefit cost ratio (BCR) (5.93) was achieved from sticky white trap + Chlorfenapyr 10SC followed by sticky white trap + Pymetrozine 50 WG.
Report/Proceedings