Agriculture - Mock Test 243

Question 2421

Dithane M-45 is a?

A) Bactericide B) Insecticide C) Fungicide D) Nematicide

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Question 2422

Disease symptoms known as phyllidy in sesamum are caused by?

A) Bacterium B) Fungus C) MLO D) Virus

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Question 2423

Death of tissue in virus infected plant described as?

A) Mottling B) Mosaic C) Necrosis D) Curling

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Question 2424

Cysts are formed by?

A) Meloidogyne B) Aphelenchoides C) Heterodera D) None of the above

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Question 2425

Crystalization of viruses has done by?

A) Mayer B) Stanley C) Iwanowski D) Bejerinck

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Question 2426

Conidia and sporangia are the spores produced by?

A) Bacteria B) Viruses C) Fungi D) Phanerogams

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Question 2427

Coffee rust is caused by?

A) Uromyces hobsoni B) Hemileia vastatrix C) Cronartium ribicola D) Ravenelia-emblicae

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Question 2428

Cocci are?

A) Spiral shaped B) Spherical shaped C) Rod shaped D) None of the above

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Question 2429

Carborundum powder is?

A) Silicon carbide B) Aluminium oxide C) Diatomaceous earth D) Calcium carbonate

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Question 2430

By 1857, Barkley and Schacht discovered root knot nematodes and cyst nematode in?

A) Sweet sorghum B) Sugarcane C) Potato D) Sugarbeet

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