Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture for competitive -paper21

The earliest documented case of insect resistance is against

(a) Wheat stem sawfly (b) Hessian fly

(c) Sorghum shoot fly (d) Screw worm fly

Major gene resistance is also called

(a) Horizontal resistance (b) Oligogenic resistance

(c) Vertical resistance (d) Induced resistance

DIMBOA is considered to be 31. resistance factor against European corn borer in

(a) First generation (b) Second generation

(c) Third generation (d) Fourth generation

The number of biotypes reported in brown plant hopper is

(a) 2 (b) 3 (c) 4 (d) 5

Which was the first country to commercialize transgenic crops?

(a) USA (b) China (c) Canada (d) Argentina

The antifeedant properties of neem were first reported in

India against

(a) Tobacco caterpillar (b) Desert locust

(c) American bollworm (d) Brown plant hopper

The irreversible inversion of acetyl cholinesterase is caused by

(a) Malathion (b) DDT (c) HCH (d) Carbaryl

The first report of insecticide resistance in India was that of

(a) Diamondback moth (b) American bollworm

(c) Singhara beetle (d) Mustard aphid

The maximum amount of pesticides in India is used on

. (a) Rice (b) Vegetables (c) Plantation crops (d) Cotton

The highest consumer of pesticides per unit area is

(a) USA (b) Taiwan (c) Japan (d) Korea

Atropine sulphate is an

(a) Antibiotic (b) Antifeedant

(c) Antidote (d) Antipheromone

Methyl eugenol is an attract for

(a) Oriental fruitfly (b) Melon fruit fly

(c) Mediterranean fruitfly (d) Paddy gall fly

The level at which control measures should be initiated against a pest is called

(a) Economic injury level (b) Economic threshold level

(c) General equilibrium level (d) None of these

White backed plant hopper belongs to the family

(a) Delphacidae (b) Cicadellidae

(c) Coccidae (d) Coreidae

Rice leaf- folder belongs to the family

(a) Noctuidae (b) Pyralidae

(c) Arctiidae (d) Pterophoridae

Cotton whitefly is a vector of

(a) Tungro virus (b) Grassy stunt virus

(c) Leaf curl virus (d) Leaf vein mosaic virus

Diamondback moth belongs to the family

(a) Pyralidae (b) Yponomeutidae

(c) Pieridae (d) Noctuidae

Red pumpkin beetle belongs to the family

(a) Chrysomelidae (b) Curculionidae

(c) Dermestidae (d) Bostrychidae

Dengue fever is transmitted by

(a) Anopheles spp. (b) Culex spp.

(c) Mansonia spp. (d) Aedes spp

Amsacta moorei (Butler) is known as

(a) Red hairy caterpillar (b) Bihar hairy caterpillar

(c) Gram cutworm (d) Greasy cutworm