A. Pest outbreak
B. Pest resugrgence
C. IPC
D. IPM
Entomology
Cotton bollworms, sugarcane borers are………….?
A. Key pest
B. Secondary pest
C. Major pest
D. I do not agree with above statement
The insect head is essentially a capsule which encloses the brain and bears the usually external (ectognathous) mouthparts, the eyes and a pair of sensory antennae. The mouth part comprise basic sections as:
A. An ‘upper lip’ (labrum), lower (ventral) surface of which forms the epipharynx
B. a tongue-like hypopharynx; the jaws (mandibles)
C. The paired maxillae and a ‘lower lip’ (labium).
D. All of these
The body of an insect is covered by a protective ……………… formed from chitin and protein. Depending upon its precise composition and thickness, the cuticle may be soft and flexible or hard and rigid; according to requirements, it may or may not be permeable or waterproof:
A. three-layered skin (cuticle)
B. Two-layered skin (cuticle)
C. Six- layered skin (cuticle)
D. None of the above
What KD50………………..?
A. Medium knock down
B. Highly knock down
C. Low knock down
D. None of above
Pheromone used against fruity fly is……………….?
A. Dichlorvos
B. Malathion
C. Carbofuron
D. Mancoze
The width of the area treated in one pass by a sprayer or other applicator is called……………….?
A. Drift
B. Swath
C. Aerosol
D. Toxin
The quality a of a pesticide to remain as an effective residue because of its low volatility and chemical stability is termed as………………?
A. Persistence
B. Aerosol
C. Defoliant
D. Desiccant
The concentration of a toxicant that kills 50% of the exposed organism is called……………..?
A. LC50
B. LD50
C. None of the Above
D. LD75
Toxicant refers to a…………….?
A. Poison
B. Poisonous material
C. None of the Above
D. Both of them