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Pest and Natural Enemy Incidence in Light Trap

Md. Panna Ali
Senior Scientific Officer
Entomology Division, BRRI, Gazipur-701.

Jannatul Ferdous
Scientific Officer
Entomology Division, BRRI, Gazipur-701.

Dr. Mohibul Hasan
PSO and Head
Entomology Division, BRRI, Gazipur-701.

Abstract/ Executive Summary:

The incidence of insect pests and natural enemies were higher at Gazipur than those of the regional stations. The highest number of GLH, BPH, RLF and LHC were observed during the month of May at Gazipur. LHC had an additional peak in October-November at Gazipur. The highest peak of YSB was observed at Comilla in the month of May followed by second peak in September-October which is quite usual. The stemborer population of Comilla showed two low peaks in September-October and May. No RLR incidence was found higher in Comilla and Habiganj at this year but it was found in Gazipur throughout the year. Among the natural enemies LBB and CDB were found at all the three locations with highest peak in the month of June at Gazipur.

Keywords: Pests, Natural enemy, Light trap

Location: BRRI,Gazipur

Start Date: 00-00-2011

End Date: 00-00-2012

Program Area: Pest Management

Commodity: Rice

Objectives:

To study the pest and their natural enemy incidence patterns in the light trap and to create a database.

Methodology:

Rice insect pests and their natural enemies were monitored throughout the year by light trap from July 2011 to June 2012 at BRRI headquarter, Gazipur and BRRI regional stations at Comilla and Habiganj.

Source of Information: Annual internal review workshop, 2011-12

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The total number of insect pests was the highest at Gazipur and followed by Comilla and Habiganj. The abundance of GLH, BPH, RLF, YSB and LHC was observed at all the three locations. The highest number of GLH, BPH, RLF and LHC were observed during the month of May at Gazipur. LHC had an additional peak in October-November at Gazipur. The highest peak of YSB was observed at Comilla in the month of May followed by second peak in September-October which is quite usual. The stemborer population of Comilla showed two low peaks in September-October and May. No RLR incidence was found higher in Comilla and Habiganj at this year but it was found in Gazipur throughout the year. Among the natural enemies LBB and CDB were found at all the three locations. The highest peak of LBB and CDB were observed at Gazipur in the month of June. The highest population of STPD and GMB were captured at Gazipur in the month of May with an additional peak in November. No STPD and GMB incidences were found at Habiganj station during the year. Both the populations of LBB and CDB were found at all the stations. STPD was the dominating predator in Comilla with two peaks –one in November and the other in May.

Knowledge Management: Report/Proceedings