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In India, the spread of Opuntia was controlled by
Options
(a) introducing insects
(b) spraying D.D.T.
(c) letting loose cattles
(d) growing trees
Correct Answer:
introducing insects
Explanation:
The control of pests by biological (rather than chemical) means is achieved by breeding disease-resistant crops or by introducing a natural enemy of the pest, such as a parasite or predator, e.g. control of the prickly pear cactus (Opuntia) was done by introducing the cactus moth (Cactoblastis, Cactorum) whose caterpillars feed on the growing shoots of the plants.
Related Questions: - Fermentation is anaerobic production of
- Which of the following causes an increase in sodium reabsorption in distal convoluted tubule?
- Cotyledon of maize grain is called as
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Topics: Enhancement in Food Production
(101)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Fermentation is anaerobic production of
- Which of the following causes an increase in sodium reabsorption in distal convoluted tubule?
- Cotyledon of maize grain is called as
- Assertion – bentham and hooker’s system of classification is
- c DNA is
Topics: Enhancement in Food Production (101)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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