· Rice variety 'Gauri': Known for its resistance to Gall Midge.
· Gall Midge (Orseolia oryzae): A significant pest in rice fields causing 'silver shoot' symptoms due to feeding and gall formation.
· Resistance Mechanism: 'Gauri' possesses genetic resistance genes (like Gm1, Gm2) to prevent infestation.
Thus, the correct option is (d) Gall midge.
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