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Relative Effectiveness of Some Granular Insecticides Against Mustard Aphid

Mori za Begum
Entomology Division, Bangladesh Institute of Nuclear Agriculture, P. 0. Box No. 4, Mymensingh, Bangladesh.

M. Husain
Entomology Division, Bangladesh Institute of Nuclear Agriculture, P. 0. Box No. 4, Mymensingh, Bangladesh.

F. A. Talukder
Department of Entomology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

Field experiments, with five granular insecticides Viz, Carbofuron Disulfoton Quinalophos Diazinon and Cartaphydrochloride each applied 2.0 and 3.0 kg a. i/ha to test their suitability in controlling mustard aphid (Lipaphis erysimf (Kalt) (Homoptera: Aphididae), was conducted. Disulfoto, Quinalophos and Cartaphydrochloride proved promising after 10 and 15 days of treatment. Disulfoton 10G at 2.0 and 3.0 kg a. i./ha showed significant superiority. Quinalophos and Cartaahydroceloride at lower dose (2.0 kg ) also showed significant effectiveness compared to other insecticides at the end of 15 days. But on the basis of minimum number of aphid population and at the same time maximum yield of mustard, Disulfoton at lower dose (2.0) kg was promising to control mustard aphid.

Keywords: Insecticides, Aphid population, Yield

Location: Bangladesh Agricultural University farm, Mymensingh Bangladesh Agricultural University farm during November 1986 to February 1987

Start Date: 00-11-1986

End Date: 00-02-1987

Program Area: Pest Management

Commodity: Insecticide

Objectives:

To study relative effectiveness of five granular insecticides against this pest in Bangladesh.

Methodology:

The experiment was carried out to evaluate the relatives effectiveness of five commonly used granular insecticides, at the Bangladesh Agricultural University farm during November 1986 to February 1987, following randomized block design. The variety SS-75 was taken as the test crop. The seeds were sown in plots ( 3m x 2m ) with 30cm spacing. The granular insecticides under test were Carbofuran (Furadan 3G), Dsiulfoton ( Disyston 10G ), Ouinalophos, (Ekalux 5G), Diazinon (Basudin 10G) and Cartaphydrochloride (Padan 10G ). Eleven treatments were taken including control and each treatment was replicated thrice. All the insecticides were applied at the rate of 2.0 and 3.0 kg a. i./ha after 50 days of sowing. The treated plots were irrigated a day after the application of insecticides. Pretreatment observations were recorded one day before the application of insecticides. Infestation by mustard aphids was recorded by selecting 10 plants in each plot at random. The apical shoot of 10 cm length was collected from the respective plants and the number of aphids population were counted. Post treatment observations were recorded at 5, 10 and 15 days after insecticide application. Yield per plot of mustard ware also recorded. The collected data were statistically computed and the results were summarized.

Source of Information: Bangladesh J. Agril. Sci. 18 (1): 49-52 January, 1991

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The granular insecticides proved better than control at 10 and 15 day s after application. At 5 days after application Ouinalophos (2.0 kg a. i./ha) counted lowest aphid population (28.63) per plant and at the same time highest aphid population (95.03 per plant) was observed in Disulfoton (3.0kg), but their differences were not significant.

Knowledge Management: Journal