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Development of an Integrated Pest Management (ipm) Approach for Pulse Beetle (call Osobr Uchus Chinensis L.) in Stored Chickpea

A.K.M. Z. Rahman
Entomology Division, BARI, Gazipur

M. S. Ahmed
Entomology Division, BARI, Gazipur

D. Sarker
Entomology Division, BARI, Gazipur

S.N. Alam
Entomology Division, BARI, Gazipur

Abstract/ Executive Summary:

This study was carried out in the laboratory of Entomology division, BARI during 2013-2014 to develop an IPM package for the management of C. chinensis (L.) infesting stored chickpea. Among the treatments Aluminum phosphide 57% (Phostoxin) tablet @ 4 tablets/ton seed provided significantly the highest protection (2.93%) followed by Pirimiphos methyl (Actellic 50 EC) @ 10ml/L of water (7.15%) against pulse beetle. The results also indicated that 50% seed + 50% dry sand provided 9.33% infestation which was significantly differed from other treatments. No significant difference was observed among rest of the treatments while, the highest infestation (41.17%) was observed in untreated control treatment. Significantly the highest germination (85.07%) was observed in Aluminum phosphide 57% treated grain followed by Pirimiphos methyl (81.91%) while the lowest percentage ofgermination was observed in untreated control (51.00%). The lowest number of pulse beetle (1.22) was observed in Phostoxin 57% treatment followed by Actellic 50EC per 150g grain sample

Keywords: Development,Integrated pest management, Pulse beetle, Chickpea

Location: laboratory of Entomology division, BAR

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Pest Management

Commodity: Chickpea

Objectives:

To develop an IPM package for the management of C. chinensis (L.) infesting stored chickpea.

Methodology:

This study was carried out in the laboratory of Entomology division, BARI during 2013-2014. Chickpea seeds were collected from Pulse Research Sub-center, BARI, Gazipur. Seven treatments were assigned in completely randomized design with three replications. The treatments were as follows: T₁: 50% seed + 50% dry sand; T₂: Neem seed powder @ IOg/Kg seed + Bracon hebetor @ 1 pairlKg seed; T₃: Bracon hebetor @ 1 pairl Kg seed; T₄: Pirimiphos-methyl (Actellic 50 EC) @ 10mll L of water; Ts: Alluminium phosphide 57% (Phostoxin) @4 tablets Iton seed; T₆: Neem seed powder@ IOg/Kg seed and T₇: Untreated control. For this study, 1.5kg of chickpea seeds were taken in plastic bag, which was then kept in gunny bag. The gunny bag was than kept in the laboratory under ambient temperature (24-32°C) and relative humidity (65-90%). Neem seed powder @ 109/kg seeds were mixed properly in respective treatment. Other treatments were applied as per designed. Stored grain insects source were made available during the whole study period. Data on number of adult beetles per 150g sample, per cent infestation by number and weight, per cent germination and % seed moisture were recorded. To estimate the per cent infestation, samples were taken from each bag at an interval of 90 days 120 days and 140 days of storage. At each sampling 100g seeds were taken from 3 different places of each bag (top, middle and bottom). From each sample 100 grains were counted and separated randomly. Out of 100 grains bored and healthy grains by number and weight were recorded and the per cent infestation by number and weight were computed. Germination test was done by taking 25 chickpea seeds at random from each treatment and replicated 3 times. The seeds were placed in Petri dishes having blotting paper at the bottom soaked with water. The seeds were incubated at room temperature and germination was estimated by direct count. Germination test was done at 120 days after storage.

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

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results indicated that B. hebetor 1 pair per Kg seed provided 69.52% germination which was statistically similar with Neem seed powder@ 109! Kg seed and Neem seed powder @ 10glKg seed + Bracon I pair/kg seed treated grain. While, the lowest seed germination (51 %) was observed in untreated control . The lowest number of pulse beetle was observed in Phostoxin 57% treatment (1.22) followed by Actellic 50EC (4.41) per 150g grain sample, which were significantly differed from all other treated pulse grain. The result also indicated that 50% seed + 50% dry sand provided 5.44 beetle per sample which was statistically similar with Bracon 1 pair per Kg seed (8.33) and neem seed powder @ IOg/Kg seed + Bracon 1 pair/kg seed (8.99) respectively, while the highest no. of beetle was observed in untreated control treatment (22.74).

Knowledge Management: Report/Proceedings