Скачать или смотреть BPSC PPI & PPS Exam Prep | Earhead Bug (Gundhi Bug) of Paddy | Identification, Damage & Control

Welcome to Lecture No-07 of our comprehensive preparation series for the Bihar Public Service Commission (BPSC) Plant Protection Inspector (PPI) and Plant Protection Supervisor (PPS) exams.

In today’s lecture, we tackle a major pest that attacks rice during its most critical reproductive phase: the Earhead Bug, commonly known as the Gundhi Bug.

The Gundhi Bug (Leptocorisa acuta) is notorious for attacking the paddy crop at the milky stage. Both nymphs and adults suck the milky sap from the developing grains, causing them to turn empty, white (chaffy), and resulting in severe yield loss. The characteristic foul odor emitted by the bugs in the field gives it the name "Gundhi Bug." Mastering the management of this pest is essential for your exam.

Key Topics Covered in This Lecture:
✅ Scientific Name & Classification: Leptocorisa acuta (Order: Hemiptera, Family: Alydidae).
✅ Identification: How to identify the slender, elongated greenish-brown adult bugs and wingless nymphs.
✅ Nature of Damage: Attack during the milky stage of grain filling. Sucking of milky sap leading to chaffy/empty grains. Appearance of black spots on grains at feeding sites. Characteristic foul smell in the infested field.
✅ Economic Threshold Level (ETL): 1-2 bugs per hill.
✅ Integrated Pest Management (IPM): Cultural Control: Clean cultivation, removal of alternate weed hosts like Echinochloa. Mechanical Control: Use of light traps, sweeping with nets in the morning/evening. Chemical Control: Dusting with Malathion/Carbaryl or spraying recommended insecticides at the milky stage.

This lecture provides the precise, factual information needed to answer questions related to this pest in the BPSC exam. Take detailed notes!

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📺 Watch Previous Lectures in this Series:

▶️ Lecture No-01 to 06: [   • BPSC PPI & PPS: Entomology & Pest Manageme...  ] (e.g., Stem Borer, Leaf Folder, BPH, GLH, etc.)

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