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Study on the Seasonal Abundance of Ber Mealy Bug Perissopneumon Tamarindus Green

M.A. Uddin
FRS, Rajshahi

M.H. Waliullah
FRS, Rajshahi

A.F.Ona
FRS, Rajshahi

K.H.Alam
FRS, Rajshahi

Abstract/ Executive Summary:

The study was conducted at Fruit Research Station, BARl. Binodpur, Rajshahi during 2013-14 to document the seasonal abundance of ber mealy bug. The ber mealy bug was found to attack ber plant from last week of April and the number afmealybug/plant was 194.10. It increased next week up to 254.80/plant but it decreased gradually up to 0.5/plant at last week of July and it was nil at first week of August.

Keywords: Abundance, Ber meaily bug

Location: Fruit Research Station, BARl. Binodpur, Rajshahi

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Pest Management

Commodity: Insects

Objectives:

The present study was undertaken to investigate the seasonal abundance of this pest.

Methodology:

The field experiment was conducted at Fruit Research Station, BARI, Binodpur, Rajshahi during 2013-1214. One year old ten ber plants were selected in this experiment. The total number of mealy bug per plant was counted. The weather data of daily minimum and maximum (0C), Relative humidly (%) and rainfall (mm) were collected from the record book of first class meteorological observatory Shyampur, Rajshahi, which is half kilometer away from the experimental field. Average weekly mean temperature, rainfall and relative humidity calculated from daily minimum, maximum and mean temperature and relative humidity.

Source of Information: Annual Research Report, Entomology Division, BARI,2013-2014

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The ber mealy bug started infestation to ber twig in the last week of April and during that period mean population density was 194.10/plant. The population of mealy bug increased next week up to 254.80/plant but it gradually decreased up to last week of July when mealy bug population was 0.5 per plant and it was nil at first week of August. There was a negative relationship (linear) with relative humidity and population density . But relationship of population density with temperature and rainfall was insignificant .

Knowledge Management: Report/Proceedings