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Integrated Management of Tobacco Caterpillar and Cabbage Butterfly with Host Plant Resistant and Organic Amendment

Sujon Talukder
Product Executive
ACI limited

Abstract/ Executive Summary:

Field study was conducted at Patuakhali Science and Technology University, Patuakhali during 2013-2014 to know the effect of cabbage variety and organic agriculture on the damage potential of Spodoptera litura F. and Pieris brassicae L. Two cabbage varieties viz., Atlas-70 (V1) and Super tropic (V2), and organic agriculture like, M0 = control, M1 = cowdung @ 6 kgplot^-1, M2 = mustard oilcake @ 750gplot-1, M3 = Vermicompost @ 3 kgplot-1 and M4 = Trichoderma @ 3 kgplot-1 were included in this study. Treatment combinations were V1M0, V1M1, V1M2, V1M3, V1M4, V2M0, V2M1, V2M2, V2M3 and V2M4. Results revealed that the lowest number of infested plants/plot and percent infested leavesplant^-1 were found in variety Super tropic and trichoderma (V2M4) applied plots followed by variety Atlas-70 and vermicompost (V1M3) applied plots on different dates of observation while the highest number of infested plantsplot-1 and percent infested leaves plant^-1 were in variety Super tropic and mustard oil cake (V2M2) applied plots followed by variety Atlas-70 and control (V1M0) applied plots. The highest number and percent (4.00 plot^-1) and (20.00% plot^-1) of infested heads were found in variety Super tropic and mustard oil cake (V2M2) applied plots followed by variety Atlas-70 and control plots (V1M0) (16.65%). The highest number of healthy heads plot^-1 (19.67), healthy head yield (71.47 t ha^-1) and total head yield (72.14 t ha^-1) were recorded in variety Super tropic and Tricoderma (V2M4) applied plots followed by variety Atlas-70 and vermicompost (V1M3) (70.53 t ha^-1) applied plots while the lowest number of healthy heads per plot, healthy head yield and total head yield were recorded in in variety Super tropic and mustard oil cake (V2M2) applied plots followed by variety Atlas-70 and control plots (V1M0).

Keywords: Atlas-70, organic materials, trichoderma, Super tropic, vermicompost

Location: Patuakhali Science and Technology University, Patuakhali

Start Date: 00-11-2013

End Date: 00-04-2014

Program Area: Pest Management

Commodity: Insects

Objectives:

The present study was conducted to evaluate the combine effect of varieties of cabbage and organic agriculture on the damage potential of S. litura and P. brassicae infesting cabbage.

Methodology:

The study was conducted at the agricultural farm of Patuakhali Science and Technology University, Dumki, Patuakhali during rabi season of 2013-2014. Two cabbage varieties viz., Atlas-70 (V1) and Super tropic (V2) were included in this study. Organic agricultural components were used as treatments were M0 = control, M1 = cowdung @ 6 kgplot^-1, M2 = mustard oilcake @ 750gplot^-1, M3 = Vermicompost @ 3 kgplot^-1 and M4 = Trichoderma @ 3 kgplot^-1. Treatment combinations were V1M0, V1M1, V1M2, V1M3, V1M4, V2M0, V2M1, V2M2, V2M3 and V2M4. Experiment was laid out in randomized complete block design (RCBD) with three replications. The entire field was divided into three blocks and each block was again divided into ten plots. The distance between both> blocks and plots was 1.0 m. The area of each experimental plot was 9 m². Seeds of the selected cabbage cultivars were sown in the month of November and were transplanted in December. Thirty day-old cabbage seedlings were transplanted in the plot of 9 m² area with 45cm × 45cm spacing on 29 December, 2013. The chemical fertilizers viz., urea, TSP and MP were applied at the rate of 285, 145 and 218 kgha^-1. Fertilizer, irrigation and all other agronomic practices were carried out in the experimental field whenever necessary. Harvesting of cabbage heads were started on 02 February and continued till 28 February 2014. Weekly observations were done since one week of transplanting till maturity of the crop. The number of infested plants plot^-1, the number infested leaves plant^-1 and infested head were separated carefully and healthy and infested leaves were counted and recorded. After each harvest, the number of healthy and infested heads were sorted, counted and recorded separately. The weight of healthy and infested heads per plot was recorded separately for each treatment replicates. Treatment wise percent head infestation was calculated from the pooled data of ten observations. The total yield of cabbage ha-1 for each treatment was calculated in tons from cucmulative head harvested from a plot. Data were analyzed after appropriate transformation following RCBD using computer MSTAT C and MS excel programs. Means were compared by DMRT.

Source of Information: Bangladesh J. Agril. Res. 43(4): 619-630, December 2018

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Variety Super tropic of cabbage grown in trichoderma (V2M4), and var. Atlas-70 plus vermicompost (V1M3) applied plots were found to be less infested by S. litura and P. brassicae in respect of number of infested plants plot^-1, number and percent of infested leaves plant^-1on different dates of observation. The highest healthy heads (by number), healthy head yield (by weight) and total head yield were obtained from combined effect of variety Super tropic plus trichoderma (V2M4) as well as variety Atlas-70 plus vermicompost (V1M3) applied plots while the lowest healthy heads (by number), healthy head yield (by weight) and total head yield were found from variety Super tropic plus mustard oil cake (V2M2) applied plots as well as variety Atlas-70 plus control plots (V1M0).

Knowledge Management: Journal