Agonopterix alstroemeriana with the dry weight of the leaf. However, oviposition was not correlated positively with the concentration of alkaloids in the poison hemlock, which varies widely among individual plants. Therefore, it is difficult to predict whether increased alkaloids in the plant would increase or decrease the use of the hemlock moth as a biological control. The effects that the alkaloids in "Conium maculatum" cause on the moth, both physiologically and behaviorally, are relatively unknown. Persons interested in the biological control capabilities of "A. alstroemeriana" see behavioral dependency on the host plant as an asset when using this moth as a biological
U Should've Known Better April 2004, and features rapper Young Buck appears in the video as her love interest. The video follows the single's topic of a misunderstandings in a relationship, showing Monica as the girlfriend, with the boyfriend held in a Mexico hold-prison. With Monica getting help from a guy friend, her boyfriend's best friend sees them and thinks otherwise. Monica drives through the desert of Mexico to get him out of prison. The video ends with Monica and her boyfriend hugging at the end and going home together. The "U Should've Known Better" video premiered worldwide in May 2004 at the end