Dogs also were at higher risk of lymphoma if their owners used self-applied insect growth regulators on their yards , such as Nylar , Precor and gentrol , which control cockroaches , fleas and other pests .
如果它们的主人在自家庭院里使用过家用的昆虫生长调节剂比如能控制蟑螂、跳蚤和其他害虫的nylar、precor和gentrol，他们的宠物狗患淋巴瘤的风险也更高一些。
precor