ICAR AIEEA PG 2024 - Entomology and Nematology

Correct matching is (A)-(I), (B)-(III), (C)-(IV), (D)-(II):

• Cotton mirid bug: Creontiades biseratense (I) (Family: Miridae, damages squares and bolls of cotton).
• Sorghum earhead bug: Calocoris angustatus (III) (Family: Miridae, sucks milky grains of sorghum).
• Mung bean whitefly: Bemisia tabaci (IV) (Family: Aleyrodidae, vector of Yellow Mosaic Virus).
• Pentatomid stink bug: Nezara viridula (II) (Southern green stink bug, Family: Pentatomidae).

The Destructive Insects and Pests Act (DIPA) was passed by the Government of India on 3 February 1914. It provides the statutory legal framework for regulating the import of plants, planting materials, and agricultural commodities to prevent the introduction of foreign exotic insect pests and plant diseases into India.

Correct matching is (A)-(III), (B)-(IV), (C)-(I), (D)-(II):

• Acorus calamus is commonly known as Sweet flag (III), whose rhizome extract possesses insecticidal and chemosterilant properties.
• Neophobia is the innate fear/avoidance of new objects/foods exhibited by commensal rodents (Rattus norvegicus) (IV).
• Chemosterilant refers to compounds that induce sterility (e.g., Colchicine, alkylating agents) (I).
• Tomafarin is a commercial anticoagulant rodenticide (warfarin-based) requiring multiple feedings (multiple-dose chronic rodenticide) (II).

The Mango mealybug, Drosicha mangiferae (Green), belongs to the family Margarodidae (or Monophlebidae, giant coccoids/giant mealybugs), Order Hemiptera. Unlike typical mealybugs which belong to Pseudococcidae, Drosicha is placed in Margarodidae due to distinct morphological features including prominent abdominal spiracles and lack of ostioles.