Agriculture - Single MCQs (Page 28)

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Q271. Black scale insect of citrus is controlled by?...Q272. Bio-types of brown plant hopper are of?...Q273. Berlese's theory was proposed to explain the orign of?...Q274. Basic unit of classification is known?...Q275. Wingless hexapod with 6 abdominal segments?...Q276. Bacillus thuringiensis is most effective at pH?...Q277. Bacillus thurigiensis was reported by Berliner from?...Q278. Alxillary sclerites are absent in?...Q279. Archnids and insects contain malpighian tubules as organs of?...Q280. Aphelinus mali has been a successful parasite in controlling?...