It's about the presentation concerning rearing and study of tobacco caterpiller(spodoptera litura). LEARN TO REAR, REAR TO LEARN.

1. PAKLIHAWA CAMPUS
Presentation on
Insect rearing of tobacco caterpiller(spodoptera litura)
Prepared by:
Ganesh Adhikari
IAAS Paklihawa campus
Rupandehi Nepal

2.  To study facts related to the insect belonging to
its life history, habits, habitats& host
relationship.
 To get a general idea how to establish an
introduced or indigenous species by rearing
them in large numbers for release.
 To accomplish a wider distribution of a
previously established species.
 To know the appropriate time to bring biological
control methods to limit them

3. Lepidoptera: Noctuidae
Identifying Characters:
 Forewings are grey to reddish-brown, with
a complex pattern of creamy streaks and
paler lines along the veins.
 Hind wings are greyish-white with greyish-
brown margins.
 Larvae have bright yellow stripes along the
back and the sides and coloured from pale
green to dark green
 Row of black dots run along each lateral
sides.

4. Eggs
Larvae 5-
instars
pupa
Adult

5. Damaging Stage : Larva
 Damage at night time as it is nocturnal pest
 Extensive feeding by larvae, leading
complete defoliation of leaves.
 In cotton, bolls are also affected causing
holes on it.
 Feeding on leaves and tender part leads to
bared appearance.

6.  Materials required:
Plastic box, muslin cloth, camera
Insect species(larva of tobacco caterpiller)
Feed such as fresh cabbage leaves.
 Insect sample:
Larva of Tobacco Caterpillar (Spodoptera litura)
 Site of sample collection:
Vegetable section, Horticulture farm, IAAS, Paklihawa.
 Host selected:
Leaves of Cabbage
 Method of sample collection:
Hand picking of Spodoptera larva.

7.  Insect was reared in plastic box of 23*18*9
cm3. with a rectangular cut in the centre of
10*5 cm2 covered by muslin cloth.
 Larvae was fed & observed daily and photos
were clicked at different stages.
 Larvae was found at horticulture field and
start to rear from 25 Nov 2017.

8. Stage Appearance Normal
life cycle
duration
Observed life
cycle
duration
Egg pale orange-
brown or pink
3-5 days -
Larva Light green to
dark green,
bright yellow
stripes along
back and side
15-20
days
8 days
Pupa Brown colored 7-10days 9 days
Adult Fore Wing: grey
to reddish brown
Hind
wing:greyish
white
- -

13.  Use natural enemies like Bacillus
sp.,Aspergelius sp.
 Planting repellent plants like garlic
 Use IPM practice to control this pest.
 Use neem based pesticides margosom
0.03% @5ml/ltr
 Chemical pesticides: cypermethrin,
fenvalerate, spinosad, emamectin benzoate
e.t.c.

14. THANK YOU