Rearing of Cabbage Butterfly Location : Bhairahawa, Nepal By: Niraj Khanal and Prashant Chaudhary (Students of Bsc.Agriculture @ Institute of Agriculture and Animal Science, Bhairahawa Nepal)

1. Insect Rearing
Cabbage Butterfly
By,
Niraj Khanal
Prashant Chaudhary

2. Collection of insect
Collected on: Magh 25, 2074
Collected at: Horticulture Farm, IAAS
Collection population: 7 larvae
Host when collected: Cauliflower
Host Range: Cole crops
Insect collected:
Cabbage butterfly (Pieris brassicae)
Order: Lepidoptera
Family: Pieridae

3. Making of the rearing apparatus
- A 2.5 L coke bottle (removed label) was cut at the half and the
upper portion was inverted right into the lower half
- Shrunk holes were drilled into the lower half using a small
edged knife, for aeration
- Host leaves were kept inside the apparatus to feed the growing
larvae, put inside it randomly

4. THE FINAL SET UP FOR REARING

5. LARVAE; AS SEEN WHEN APPARATUS, UNCOVERED

6. Marked events during rearing
Day 1: apparatus kept on the study table to remain so during the
rearing period; with cauliflower leaves for the larvae to feed on
Day 4: BLM leaves were offered and found less preferred to Brassica
olearaceae by the larvae
Day 10-12: larvae got inactive
Day 12: larvae morphed into green pupas on falgun 8, 2074
Day 22: an adult butterfly emerged from one of the pupa

7. DAY: 12, METAMORPHOSIS INTO PUPA.
PUPA stage lasted for 10 days (2074-11-12 to 2074-11-22)

8. Pupa remains, after adult emergence Adult right after emergence
DAY 22: METAMORPHOSIS INTO ADULT

9. A close view of an adult

11. Average life cycle of Pieris brassicae

12. THANK YOU