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Integrated Management of Aphid in Mustard

M. A. Monim
Oil Seed Research Centre, RARS, BARI, Rahmatpur, BarisalThis result revealed that neem formations and Zetpowder are effective in checking the aphid population in mustard only up to 5-7 days after spray. Their performance was inferior to Malataf 57 EC treated plots.

K. M. Moniruzzaman
Department of Agriculture Extension, Khamarbari, Dhaka

R.K. Mondal
Department of Agriculture Extension, Khamarbari, Dhaka

M. A. Quddus
Pulses Research Sub Station, BARI

A. B. M. S. Islam
SRDI, Jamalpur

Abstract/ Executive Summary:

Management of mustard aphid (L. erysimi Kalt.) using zetpowder, neem kernel extract, neem oil and one chemical insecticide Malataf 57EC and their integration was studied at Regional Agricultural Research Station, .Bangladesh Agricultural Research Institute, Rahmatpur, Barisal during rabi season of 2007-2008 and 2008-2009. The highest aphid population was 250 per plant observed in the 3rd week of January in 2008, 2009. Among the treatments as expected Malataf 57 EC reduced the highest aphid population (98.53%) with the highest BCR (5.00) followed by Neem kernel extract + Zet powder (70%) and Neem oil + Zet powder (69.91%) and Neem kernel extract (65.15%) recorded at 7 days after spray over the pre-treatment count. Zetpowder gave the second highest BCR (4.00) followed by Neem kernel extract (2.63), Zetpowder+Neem oil (2.20) and Zetpowder+ Neem kernel extract(2.14).

Keywords: Integrated, Management Aphid, Mustard

Location: Oilseed Research Centre, Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Rahmatpur, Barisal

Start Date: 00-00-2007

End Date: 00-00-2009

Program Area: Pest Management

Commodity: Mustard

Objectives:

1. To find out the most effective plant materials with their integration for the management of mustard aphid.

Methodology:

The experiment was carried out during the period from rabi season of 2007-2008 to 2008-2009 at the field of Oilseed Research Centre, Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Rahmatpur, Barisal, The experiment was laid out in a following randomized complete block design (RCBD) with three replications. Fertilizers were applied at 280-175-95-170-6-12 kg/ha of urea, triple supper phosphate, muriate of potash, gypsum, zinc sulphate and borax respectively, as recommended for Bangladesh (Anon, 2004). One half amount of urea and full dose of all other fertilizers were incorporated into the soil at the time of final land preparation. Other half of urea was applied as top dressing after 30 days sowing (flowering stage) was done. During land preparation, cowdung was applied at 10 ton/ha. The unit plot size was 3 m X 4 m. The spacing maintained for Mustard entries was 30 cm row to row and 10 cm seed to seed distances. The mustard variety BARI Sarisha-11 were sown in 28 November, 07, 08, 09. Intercultural operations, such as irrigation was given twice, weeding and mulching were done as and when necessary. Six treatments namely, Zet powder @5g/l, Neem kernal extract(2.5%), neem kernal extract+ Zet powder, Neem oil 5ml/l +Zet powder Malataf 57 EC@ 2ml/l and untreated control were evaluated against mustard aphid under field condition. Three hundred fifty gram (350g) neem seed kernal was crushed and added to 10 litre of water and kept over night and sieved with fine net. Then the solution was ready for spray. Four gram(4g) detergent powder (Zet powder) added to 1litre of water stirring and sieved with fine net. Four (4) ml neem oil added to 1 litre of water with 4 g zet powder stirring and sieved then the solution was ready for spray. Botanicals and insecticide were applied on January 24, 2007, 2008, 2009 at the pod formation stage of the crop with the help of knapsack sprayer. Randomly 10 plants were selected per plot for counting aphid populations. Both adult and nymph populations were counted on the top of 10cm twigs or inflorescence of the plant before 2, 5 and 7 days after spray in all the treatments The crop was harvested on 15-03-08, 09. Seed yield of different treatments were recorded. Data were compiled and. Analyzed statistically. Benefit cost ratios (BCR) of different treatments were also calculated.

Source of Information: J. Agrofor. Environ. 4 (1): 93-95, 2010; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

This result revealed that neem formations and Zetpowder are effective in checking the aphid population in mustard only up to 5-7 days after spray. Their performance was inferior to Malataf 57 EC treated plots. Result also revealed that although botanicals fail to reduce 100% aphid population but it safe for natural enemies specially the coccinellid predators and also safe for environmental pollution.

Knowledge Management: Journal