Larval stage of Chickpea Pod borer was collected from the IAAS, Paklihawa horticulture farm and reared inside plastic box as explained in this presentation.

1. A Presentation on Insect Rearing
Welcome
•Prepared by
Dinesh Ghimire
B.Sc. Ag. 6th Sem
IAAS, Paklihawa
Rupandehi, Nepal

2. Rearing of Chick Pea Pod
Borer
A. Introduction:
Insect rearing is the process of rearing different kinds of
insects for both productive as well as study purpose. The
purposes of rearing insects in the laboratory are to study
the insect itself, to facilitate the establishment of an
introduced species, to accomplish a wider distribution of
a previously established species, or to supply routinely
for release for biological control.

3. B. Objectives
• To be able to rear Chickpea Pod Borer.
• To study the developmental phase of insect from its
initial phase.
• To know about method and procedure of rearing of
insect.

4. C. Methodology
•Material used : Plastic box, Muslin cloth, knife/cutter,
camera, insect species & their feeds.
•Site of collection of sample : Horticulture Farm,
IAAS, Paklihawa
•Insect selected for rearing : Chickpea Pod Borer
(Helicoverpa armigera)
•Host selected: Leaves and Pods of pea
•Method of collection: Hand picking of Chickpea Pod
Borer

5. D. Method of Rearing
• A plastic box was taken for the rearing of borer. The lid of the plastic box was
given a rectangular cut in the centre of box with the help of sharp cutter.
Then the muslin cloth was attached to the cut part for proper circulation of
the air and to prevent the escape of larva and adult.
• The larva was then brought for observation by keeping it inside a plastic box.
The larva was fed daily by providing the pea leaves and pods and its daily
activities were studied up to its development into larval and adult stage. The
different stages of life cycle was captured with the help of camera.

6. E. Observation table:
Stage Date(2074) Events Observations
Egg ------------ ----------- -----------
Larva 4st to 16th Poush
•Collection of larva
•Feeding material
provided
(pea pod)
•Larvae are light green in color
•3 dark stripes extend along dorsal side
Pupa 17th to 26th Poush Observation
•Silken cocoon was observed
•Brown glistering color
Adult 26th Poush onwards Observation
•Dull light brown with dark marking
•Forewings are brown with fine dark
markings.
• Hind wings have light border and dark
patches

7. Pupa
Larva
Adult Moth

8. F. Limitations
•The egg of the moth was not collected. Only the larva
was collected, and also its actual age was unknown.
•The larva was nurtured in a controlled atmosphere. So
its lifecycle stage might have been altered. Along with
this, the moth’s natural habitat wasn’t known.
•Pupa’s character couldn’t be studied well due to
controlled atmosphere.

9. G. Findings
•Though the tenure time was 35 days, the lifecycle of
the collected larva completed in 30 days. This faster
transition might be due to temperature effect.
•Though the lifecycle couldn’t be studied fully, i.e. its
egg stage wasn’t known, and on top of that the age of
larva found wasn’t also known. In spite of that as
well, the lifecycle of the moth was observed and the
larva was induced to adult stage and the adult was set
free after completion of its all stages.

10. H. Conclusion
Hence, we were able to study lifecycle and
damaging characters of the pest Helicoverpa armigera.

11. Picture Gallery

12. Picture Gallery

13. Thank You !!!