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Journal of Biological Sciences
  Year: 2002 | Volume: 2 | Issue: 9 | Page No.: 630-632
DOI: 10.3923/jbs.2002.630.632
 
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Potentiality of Micraspis discolor (F.) as a Biocontrol Agent of Nilaparvata lugens (Stal)
Mahfuj Ara Begum , Mahbuba Jahan , M.N. Bari , M. Mofazzel Hossain and N. Afsana

Abstract:
Life cycle of Micraspis discolor (Fabricious), a predator of brown plant hopper (BPH), Nilaparvata lugens (Stal) was studied in the laboratory and its potentiality in biological control was investigated. A female M. discolor laid an average of 117.7 eggs in 25.1 days of oviposition period. Preoviposition period ranged from 5-10 days with an average of 6.6 days. The eggs hatched in 2-3 days with 83.7% hatching success. Predator had 4 larval instars requiring a total period of 12-15 days. Mean developmental period of the predator was 20.2 days. Male and female beetles lived for 27.4 and 32.4 days respectively. A predator larva consumed an average of 47.6 third instar brown plant hopper, while an adult beetle consumed an average of 112.6 BPH during 30 days after emergence. Predator, M. discolor both in larval and adult stage showed preference for second and third instar brown plant hopper.
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How to cite this article:

Mahfuj Ara Begum , Mahbuba Jahan , M.N. Bari , M. Mofazzel Hossain and N. Afsana , 2002. Potentiality of Micraspis discolor (F.) as a Biocontrol Agent of Nilaparvata lugens (Stal) . Journal of Biological Sciences, 2: 630-632.

DOI: 10.3923/jbs.2002.630.632

URL: https://scialert.net/abstract/?doi=jbs.2002.630.632

 
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