The biological control of agricultural pests, unlike chemical control is
Very expensive
Polluting
Self perpetuating
Toxic
Additional Questions
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Which one of the following is used as biological insecticide? |
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Yeast is used in the production of |
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Which of the following microbes is used for commercial production of ethanol? |
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Crop rotation is used by farmers to increase |
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During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded? |
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In paddy fields biological nitrogen fixation is chiefly brought by |
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Study the followings related to uses of plants and identify the correct match for the sorghum and cotton respectively. I. Blood purification and organic fertilizer. II. Animal feed and paper industry III. B Vitamin and cosmetics. IV. Explosives and organic fertilizer. The correct pair is: |
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Agriculture by using only biofertilizers is called |
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Bacterial leaf blight of rice is caused by a species of: |
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Which of the following is a symbiotic nitrogen fixer? |
Answer |