In nonlactating dairy cattle, you can use the organophosphates phosmet and chlorpyrifos as well as tetrachlorvinphos, coumaphos and diazinon. The macrocyclic lactones moxidectin, ivermectin, ...

Choose from Lice Bite stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Video Back Videos home Signature collection Essentials collection ...

Young head lice (called nymphs) feed daily on blood and develop into adults in about 9 to 12 days. Adults live for about 30 days. The most common symptom is itching. It typically starts about 4 to 6 ...

Head lice are a common problem, especially for kids. They spread easily from person to person, and sometimes are tough to get rid of. Their bites can make a child's scalp itchy and irritated, and ...