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Development of Bio-rational Based Management Approach Against Lentil Aphid, Aphis Craccivora Koch (2015--2016)

MD. ALTAF HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

Management of lentil aphid using bio-rational products was studied at Pulses Research Center, Ishurdi, Pabna during rabi 2015-16. Aphid infestation in the lentil twigs was monitored regularly in the experimental plots. But no remarkable aphid infestation was observed in the twigs. So, the treatments could not be applied and the results of the effectiveness of bio-rational products against lentil aphid could not be shown.

Keywords: Lentil, Aphids, Bio-rational pesticides

Location: Pulses Research Center, Ishurdi, Pabna,

Start Date: 00-00-2015

End Date: 00-00-2016

Program Area: Pest Management

Commodity: Insects, Lentil

Objectives:

The study has been undertaken to manage lentil aphids in a non-hazardous and safer way.

Methodology:

The experiment was conducted at Pulses Research Center, Ishurdi, Pabna, Bangladesh during rabi 2015-16. Bio-rational pesticides are considered as treatments which were: T₁ = Sanitation + white sticky trap + spraying of azadiractin (Bioneem plus 1 EC) @ 1 ml/l of water, T₂ = Sanitation + white sticky trap + spraying of plenum (Pymetrozin 50 WG) @ 0.5 g/l of water, T₃ = Sanitation + white sticky trap + spraying of azadiractin (Fytomax 3 EC) @ 1 ml/l of water and T₄ = Untreated control (water spray). The experiment was laid out in randomized complete block design with three replications. The unit plot size was 3m X 4m with a distance of 1 m between the plots and 1.5 m between the replications. The seeds of BARI Masur-6 were sown on November 25 in rows @ 30 kg/ha. Urea, triple superphosphate and muriate of potash and boric acid fertilizers were applied @ 40-90-40-7.5 kg/ha. The crop was kept weed-free by spading and hand weeding.

Source of Information: Annual Research Report 2015-2016, Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Aphid infestation in the twig of lentil was monitored regularly in the experimental plots. But no remarkable aphid infestation was observed in the twig in this growing season, so treatments could not be applied and that is why data-based results of the effectiveness of bio-rational products against lentil aphid could not be shown. We have tried to find out the reasons why aphid is not coming in this season. We tabulated weather parameters and concluded that this might be happening due to prevailed lower average temperature (18-26^oC) with higher average relative humidity (73-74%) of the growing season did not invite the lentil aphid in the experimental field. It is cited that optimal development of A. craccivora is dependent on fairly specific climatic conditions, such as temperatures 24-28.5°C and around 65% RH

Knowledge Management: Report/Proceedings