Lok Durd was an obese Neimoidian general in the army of the Confederacy of Independent Systems. A flamboyant and heartless weapons developer, some say if Lok Durd could make half the noise on the battlefield that he does in the war room, then the Separatists would have won the war. Durd longed to impress Count Dooku with his battlefield inventions. The Neimoidian general unleashed the Defoliator on the planet Maridun during the Clone Wars.
To test his Defoliator, Lok Durd targeted an expanse on the grassland planet of Maridun. He cared little that a colony of Lurmen had built a village in the blast radius. If anything, that made it a better test of his new weapon.
Durd's battle droid army was immune to the effects of the Defoliator. The blast of the weapon disintegrated living matter, but washed over the battle droids, making it an ideal addition to the Separatist arsenal.