Name of crop Cauliflower
Category : Vegetable crops
Name of variety : BARI Phulkopi-2
Identifying character : Early to mid season variety, Marketable curd wt. around 800-900g, Compact attractive creamy white colour, Abundant seeds can be produced locally in winter season
Developed by (Centre/Division) : Olericulture Division, HRC, Gazipur
Year of release : 2006
Crop duration : 95-105 days (DAT)
Yield (kg/ha) : 25-30
Fruit Colour : Creamy white
Suitable area : All over Bangladesh
Sowing time : August- September
Harvesting time : November to January
Major diseases and Management : a) Root witting
Management:
1. Seed treatment with Vitavax 200 @ 2 g/1 kg seed
2. Clean and well drained land
b) Leaf spot
Management:
1. Judicious fertilizer application and timely irrigation.
2. Crop rotation.
3. Spraying of recommended fungicide (Rovaral @ 20 g with 10 liter of water) at an interval of 10-12 days.
Major insect/pest and Management : a) Diamond back moth
Management:
1. Remove and destroy all the remnants stubbles, debris etc after harvest of crop and plough the field.
2. Bacillus thuringiesis Berliver has been reported to give Complete check of this pest.
3. Mechanical control by hand picking of egg, larva with infested plant pests at 3-5 days interval.
4. Spraying with @ 1 ml/L of water at 15 days interval.
5. Biological control with Trichogramma bactri @ 1 g/ha (40,000-45,000) at 7 days interval.
b) Prodenia Caterpillar
Management:
1. When the population of the insect is low, collect the egg masses and caterpillars, especially when they are feeding gregariously in the earlier stage by picking and destroy them.
2. Incase of serious infestation spray- with Cypermethrin (Ripchord, Cymbush, Barathrin) @ 1 ml/L of water 2-3 times at 15 days interval.
3. Biological control with larval parasitiod Bracon hebitor @ 800-1200/ha at 7 days interval.
c) Aphids
Management:
1. To check the aphid damage, cut and destroy promptly all the infested leaves along with colonies of aphids the early stage of attack.
2. Conservation of natural enemies especially different ladybird beetles.
3. Spraying of Sumithion 50 EC or Malathion 5>EC @ 1 ml per liter of water at 7 days interval.
d) Cabbage butterfly
Management:
1. To check the damage, cut and destroy promptly all the infested leaves along with caterpillars and pupae at the early stage of attack.
2. 2-3 spraying should be done with Sumithion @ 1.0 ml/L of water or Limithion at the rate of 2.0 ml/liter of water at an interval of 10 days.
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