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प्रश्न
Opuntia weed can be eradicated by ______.
विकल्प
cochineal insect
gambusia
grass carp
both cochineal insect and gambusia
MCQ
रिक्त स्थान भरें
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उत्तर
Opuntia weed can be eradicated by both cochineal insect and gambusia.
Explanation:
Cochineal insects are used in the biological control of prickly-pear cactus (Opuntia). Grass carp control aquatic weeds, while gambusia is not the organism identified for Opuntia control here.
shaalaa.com
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