ABUNDANCE AND DIVERSITY OF INSECT PESTS ON BORO AND AMAN RICE IN SYLHET

S R Suhel, M A Maleque, M S Uddin and J Ahmed
Journal of the Sylhet Agricultural University, Volume 4, Issue 1, 2017, Pages 53-60

Abstract:

The abundance and diversity of insect pest species was determined in boro rice field of Bangladesh Agricultural Development Corporation (BADC) farm (from November 2013 to April 2014) and in aman rice field of Agricultural Training Institute (ATI) farm (from May to November 2014) in Sylhet district. A total of 16 and 14 pest species were found in boro and aman rice field, respectively. In both rice fields, green leafhopper and white leafhopper were found as the most abundant species among all the recorded species at all rice growing stages (seedling, tillering and heading). Rice hispa was found most abundant at tillering and heading stage in boro rice, while it was abundant at heading stage in aman rice field. In boro rice field, rice bug was most abundant at heading stage and it was absent at seedling and tillering stages. Leaf roller, yellow stem borer, rice horned caterpillar and black bug were more abundant in boro rice and short-horned grasshopper, long-horned grasshopper, rice bug, and caseworm were more abundant in aman rice. In aman rice field, abundance of short-horned grasshopper gradually decreased from seedling to heading stage (35.00>11.89>8.33). In both rice fields, relative abundance (%) of green leafhopper was highest followed by white leafhopper, shorthorned grasshopper, rice hispa, rice bug and others. The results indicated similar abundance and diversity of pest species in both boro and aman rice fields. Regardless of the rice seasons, the pest species and green leafhopper, white leafhopper, leaf roller, yellow stem borer, caseworm, rice bug, rice hispa and rice horn caterpillar were found more prevalent.

Keywords:

Rice plant, rice pest, biodiversity, rice season


Full Text

PDF

815 Views


Cite this article

S R Suhel, M A Maleque, M S Uddin and J Ahmed. 2017. ABUNDANCE AND DIVERSITY OF INSECT PESTS ON BORO AND AMAN RICE IN SYLHET, Journal of the Sylhet Agricultural University 4(1): 53-60.