521. Ingredient added in pesticide to enhance and maintain efficacy of active ingredient is____________________?
A. Dose
B. Active ingredient
C. Insert ingredient
D. Pesticide
522. The chemical used for killing birds is called________________?
A. Ovicide
B. Avicide
C. Pesticide
D. Herbicide
523. The chemical used for controlling of mites is called__________________?
A. Acaricide
B. Nematicide
C. Nematicide
D. Mollusicide
524. Example of inorganic pesticides are__________________?
A. calcium cyanide, boric acid
B. Chlorine, nitrogen
C. Oxygen, sulfur
D. Phosphorus, chlorine
525. Carbamates contains_________________?
A. Carbon, hydrogen
B. Carbon, hydrogen, nitrogen
C. Carbon, nitrogen and sulphur
D. Carbon, hydrogen, nitrogen
526. Volatile chemical which exist in the gaseous state in sufficient concentration to be lethal for a given pest is called ?
A. Fumigant
B. Arsenicals pesticide
C. Pyrethorid
D. carbamate
527. Mosquitoes, bed bugs are____________________?
A. Permanent Parasite
B. Intermitttent Parasite
C. transitary Parasite
D. Obligate Parasite
528. The parasite which can live on more than one host is called__________________?
A. Obligated Parasite
B. Facultative Parasite
C. Intermitted Parasite
D. Transitory Parasite
529. The parasite which are capable of developing upon a few closely related host species is called_______________?
A. Oligophagous parasites
B. Polyhagous parasites
C. Facultative parasites
D. Transitory parasites
530. Aphis lions are predator of___________________?
A. Aphid
B. Jassid
C. Sugarcane borer
D. Pyrilla