&middotDrought damage - needles gradually turn yellowish-green and then light brown. This starts at the top of the tree and progresses downward and from the outside in. &middotAnimal injury - dog urine can cause some browning and dropping of lower branches on arborvitae and junipers.
There are many different brands of cat flea collars. Generally, flea collars work by either emitting a toxic gas to the local area (head/neck of the pet) or by exuding chemicals that are absorbed into the animal's skin. Some flea collars have an Insect Growth Regulator (IGR), to prevent development of cat fleas, eggs and larvae.
Fleas are a pretty common problem for both cats and dogs. When the weather starts warming up, fleas can run rampant in your yard and bite your pet. As if itchy flea bites weren't annoying enough, fleas can cause many other issues for your pet. Check out these 5 health problems that yucky fleas can cause. Most flea bites cause a little bump, but if your pet is allergic to the saliva of a flea, your pet will constantly scratch and cause swelling and welts on the skin.