Emily used arsenic to poison Homer Barron.
Since Miss Emily's interest was caught when she learned that it could even kill an elephant, it's safe to say that she never intended the poison for rats. The townspeople speculated that she would kill herself with it due to heartbreak over Homer Barron. However, the body in her bedchamber compiled with the missing Homer Barron lead the reader to believe that she used it to kill Homer in an effort to ensure that he could never leave her.
Miss Emily killed Homer Barron so that he could never leave her. She had already suffered with her father dieing and leaving her. Then the towns people took him away and buried him. She was able to keep her crime of killing Homer a secret and she kept him locked up in the room for forty-years.
Miss Emily purchases arsenic to kill her lover, Homer Barron, so she can keep him with her forever. She does this as a desperate attempt to prevent him from leaving her.
She used the poison to kill her "husband", although we are not sure if they married, because she found out that he was gay. Another possibility is that she, being a daughter of her father, agreed that he was not good enough for her and decided to kill him. She then lays with him in bed up until her death to keep him with her, although dead. It is a weird story. But basically it has to do with her social roles constraining her from being her true self.
I think because of the fact that she went and bought rat poison to kill him.... is a pretty strong motive for passion. She probabably did not love him, but was attracted to him for sure, it is relevant because it seems that he likes women, but he also likes MEN. From the point of view of the author.
Miss Emily's motivation to commit murder in William Faulkner's "A Rose for Emily" is rooted in her desire to control and possess the object of her affection. She chooses to kill Homer Barron as a way to keep him with her forever, preserving him in the only way she knows how, within the confines of her home. This act is a manifestation of her deep-seated need for companionship and her refusal to accept change or loss.
Her buying of the arsenic, and not having a reason for it foreshadowed that she was going to kill someone.
It is ironic because Emily feels that he is a rat for wanting to walk out on her after making her think he wanted to marry her. She decides to kill this "rat" so what better murder weapon than rat poison. The irony is underscored in the story, because Emily asks the druggist for poison, but when he asks why she needs poison, she stares him down refusing to say anything. The druggist is intimidated and lets her buy the poison with no explanation. He writes down as the reason "For rats." And that is just what Emily used it for.
No, poison will leave you on half a heart, it will not kill you.
To kill the pigeons with rat poison, you will have to poison their food with the rat poison. You can poison the water that the pigeons drink and the cereals that the pigeons eat.
Yes, rat poison can kill squirrels if they consume it.
30 FYI venom