Correct option is C
Shoot fly (
Atherigona soccata) is one of the most important and damaging pests of
sorghum, especially during its early growth stages. However, the
timing of sowing plays a
crucial role in minimizing shoot fly infestation.
Early or timely planting helps the crop
escape the peak population of the pest, thereby reducing economic loss.
�� Key Facts About Shoot Fly and Sorghum:
·
Target crop: Sorghum (also affects maize and pearl millet)
·
Damage stage: Seedling stage (up to 3 weeks after germination)
·
Symptoms:
· Formation of
“dead hearts” — central shoot dries and can be easily pulled out.
· Eggs are laid on the lower surface of leaves or the soil near the base.
·
Favorable conditions for the pest:
·
Delayed sowing and
moist warm weather favor heavy infestations.
·
Timely planting (within the recommended sowing window) ensures the crop
develops past the vulnerable stage before the shoot fly population peaks.
Explanation for Each Option
(a) Shoot borer ❌
· Mainly attacks at a
later growth stage; common in crops like sugarcane and sometimes sorghum, but
not directly linked to sowing time escape.
(b) Armyworm ❌
· A migratory pest that can attack at various stages;
timely sowing does not guarantee escape.
(c) Shoot fly ✅
·
Correct answer.
· Timely sowing helps the sorghum crop
escape shoot fly infestation, especially in the early seedling stage.
(d) Shoot bug ❌
· More common in
rice, and not significantly managed by sowing time in sorghum.