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Effect of Different Management Techniques Against Rhizome Damage of Ginger

M.M. Kamal
Scientific Officer
Spices Research Center, BARI, Shibganj, Bogra.

Abstract/ Executive Summary:

A field experiment was conducted at Spices Research Centre, Shibgonj, Bogra, during April, 2008 – January, 2009 to find out the suitable control method against rhizome damage of ginger. The experiment was laid out in RCB design with 6 replications viz. T₁: Trichoderma compost; T₂: Neem oil cake; T₃: Ridomil gold; T₄: Mustard oil cake; T₅: Organic insecticide (Rash) and T₆: Control. Among the treatments, neem based botanical pesticides were more effective to reduce the rhizome damage from all other treatments. The lowest percent of shoot damage was found in neem oil cake (1.817) treated plot and the highest yield (15.76 t/ha) was also found in treatment of neem oil cake. Another neem based organic insecticide “rash” scored the second highest yield (11.55 t/ha).

Keywords: Damage, Ginger, Management, Rhizome, Thecniques

Location: Spices Research Center, BARI, Shibganj, Bogra.

Start Date: 00-04-2008

End Date: 00-01-2009

Program Area: Pest Management

Commodity: Ginger

Objectives:

To determine the suitable management techniques for the control of rhizome damage.

Methodology:

The experiment was conducted at SRC, Bogra during April, 2008 to January 2009. There were 6 (six) treatments Viz, T₁ = Trichoderma compost @ 1200 kg per ha. T₂= Neem Oil Cake (NOC) @ 250 to 400 kg ha. (300 kg/ha), T₃ = Ridomil Gold MZ 68WG @7kg/ha in furrow, T₄ = Mustard Oil Cake (MOC) @ 500-600 kg/ha, T₅ = Organic insecticide- Rash, will be applied during last plough, T₆ = Control. The experiment was laid out in RCB design with 3 replications. Individual plot size was 3m x 1.5m. and plant spacing was 50cm x 25cm. No. of healthy plants, no. of infested plants and % of shoot damage were recorded. All the treatments accept rash were applied during seed sowing. Organic insecticide rash was used as a seed treating chemical. Seeds were treated for 30 minutes by rash. Standard cultural practices were followed for the experiment. The treatments mean differences were compared using DMRT.

Source of Information: Spices Research Center, BARI, Shibganj, Bogra.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 15,000/-

Total Budget (Tk.) : 15,000/-

Achievement/Findings:

The results indicated that some treatments had significant effect on controlling the rhizome damage of ginger. Among the treatments, the lowest shoot damage (1.81 %) was found in neem oil cake followed by organic insecticide rash (2.26 %) and mustard oil cake (2.43 %). Effect of different treatments in reducing shoot damage caused by rhizome fly at SRC, Bogra during crop season 2008 Treatment % of shoot damage (mean) Yield (t/ha) T₁ (Trichoderma compost) 4.923a 5.253a T₂ (Neem oil cake) 1.817b 15.760ab T₃ (Ridomil Gold MZ 68 WG) 3.033b 6.663bc T₄ (Mustard Oil Cake) 2.430b 9.700c T₅ (Organic Insecticide (Rash) 2.260b 11.550cd T₆ (Control) 6.197c 2.143d CV (%) 23.62 27.20 Treatment means having common letter(s) are not significantly different from each other at 5% level of significance. Inversely, the highest % of shoot damage was found in control treatment (6.19) followed by trichoderma compost (4.92) and ridomil gold (3.03). The maximum yield was obtained from the use of neem oil cake (15.76t/ha). Neem oil cake controls rhizome damage and adds some organic matter to the soil contributing to higher yield. Among the treatments, neem based botanical pesticides were more effective to reduce the rhizome damage from all other treatments. The lowest percent of shoot damage was found in neem oil cake (1.817) treated plot and the highest yield (15.76 t/ha) was also found in treatment of neem oil cake. Another neem based organic insecticide “rash” scored the second highest yield (11.55 t/ha).

Knowledge Management: Report/Proceedings