The Fall Army Worm (FAW), first identified in America, spread to Africa in 2016 and was recorded in India and Bangladesh by 2018, posing a significant threat to over 80 crop types, particularly maize. This pest can migrate vast distances and thrives in both summer and winter, leading to severe damage to crops, especially through caterpillar feeding patterns. Control measures include deploying pheromone traps, flood irrigation, and the use of organic pesticides to manage its impact on agriculture.

1. Topic Name
Fall Army Worm
Preparedby
Rafiqul Islam Rifat
IUBAT University
Bangladesh

2. History of Fall Army Worm
• Fall army worm was first visible in America.
• Then it spread out through out the Africa in 2016. After that
this pest was recorded in India in 2018 also.
• Fall army worm also have found in Bangladesh.
• Then December 2018- Fall Army Worm has indentified in
Bangladesh. First it was visible in corn field at Nator district.

3. Harmful For:
• About 80 Crops.
• Maize cultivation will be destroyed in the first due to
this insect.
• Then it will spread in rice, wheat and others crops.
• If it is continue to grow, the big threat will come in
our food security.

4. Reasons for its severity
• FAW spreads quickly across large geographic areas.
moths can migrate over 500 km, a flight of 1,600 km
from the southern U.S. state of Mississippi to
southern Canada in 30 hours has been recorded.
• FAW can persist throughout the year.

5. Host
• The caterpillars are mainly found feeding on young maize
plants,
• but they can also attack other crops including millet, sorghum,
rice, wheat, sugar cane and vegetables.

6. Suitable Time for growth
• Summer and winter both are perfect for growth
• but in the summer season they can spread more and
also damage more crops.

7. Damage Symptoms on Maize
 Caterpillars feed on various
plant parts of maize such as
leaves, stem and cob.
 In early stage caterpillars
feed on leaves and produce
characteristic row of holes
like symptoms.
• larvae- they feed from the
edge of leaves.

8. Con…
 The damage often
results in extensive
defoliation and
damage to the
growing points (leaf
whorls).
 Deep feeding in the
leaf funnel may
destroy developing
tassels. Caterpillars
tend to enter through
the side of the ear
and feed on
developing kernels.

9. Life Cycle

10. Way of Control
• 5-6 Feromone Trap should be establish in per begha.
• Flood irrigation.
• Collection eggs and larva manually and kill it.
• Organic pesticide SNPV- 0.2g/L should be spray 2-3
times.
• Acimix 55 EC( Emulsifiable concentration) or Lamix
28.7 EC.
• Spray organic pesticide Spodopotera Nuclear
Polihydrosis virus (0.2g/L) surrounding area
Attacking plant.